RECOMBINANT INFECTIOUS BOVINE RHINOTRACHEITIS VIRUS S-IBR-052 AND USES THEREOF

Abstract: The present invention provides a recombinant infectious bovine rhinotracheistis virus designated S-IBR-052 (ATCC Accession N DEG . VR 2443). The present invention also provides a vaccine which comprises an effective immunizing amount of the recombinant infectious bovine rhinotracheitis virus designated S-IBR-052 and a suitable carrier. The present invention provides homology vectors, methods of immunization and a method of distinguishing an animal vaccinated with the vaccines of the present invention from an animal infected with a naturally-occurring infectious bovine rhinotracheitis virus.

Description: RECOMBINANT INFECTIOUS BOVINE RHINOTRACHEITIS VIRUS S- IBR-052 AND USES THEREOF This application is a continuation-in-part of U.S. Serial No. 08/191,866, filed February 4, 1994 which is hereby incorporated by reference into this application. Within this application several publications are referenced by arabic numerals within parentheses. Full citations for these publications may be found at the end of the specification immediately preceding the claims. The disclosures of these publications are hereby incorporated by reference into this application in order to more fully describe the state of the art to which this invention pertains. BACKGROUND OF THE INVENTION The ability to isolate viral DNA and clone this isolated DNA into bacterial plasmids has greatly expanded the approaches available to make viral vaccines. The methods used to make the present invention involve modifying cloned viral DNA sequences by insertions, deletions and single or multiple base changes. The modified DNA is then reinserted into the viral genome to render the virus non-pathogenic. The resulting live virus may then be used in a vaccine to elicit an immune response in a host animal and to protect the animal against a disease. One group of animal viruses, the herpesviruses or Herpetoviridae, is an example of a class of viruses amenable to this approach. These viruses contain 100,000 to 200,000 base pairs of DNA as their genetic material. Importantly, several regions of the genome have been identified that are nonessential for the replication of virus in vi tro in cell culture. Modifications in these regions of the DNA may lower the pathogenicity of the virus, i.e., attenuate the virus. For example, inactivation of the thymidine kinase gene renders human herpes simplex virus non-pathogenic (28) , and pseudorabies virus of swine non-pathogenic (29) . Removal of part of the repeat region renders human herpes simplex virus non-pathogenic (30,31) . A repeat region has been identified in marek's disease virus that is associated with viral oncogenicity (32) . A region in herpesvirus saimiri has similarly been correlated with oncogenicity (33) . Removal of part of the repeat region renders pseudorabies virus non- pathogenic (U.S. Patent No. 4,877,737, issued October 31, 1989) . A region in pseudorabies virus has been shown to be deleted in naturally-occurring vaccine strains (11,3) and it has been shown that these deletions are at least partly responsible for the lack of pathogenicity of these strains. It is generally agreed that herpesviruses contain non- essential regions of DNA in various parts of the genome, and that modifications of these regions can attenuate the virus, leading to a non-pathogenic strain from which a vaccine may be derived. The degree of attenuation of the virus is important to the utility of the virus as a vaccine. Deletions which cause too much attenuation of the virus will result in a vaccine that fails to elicit an adequate immune response. Although several examples of attenuating deletions are known, the appropriate combination of deletions is not readily apparent. Infectious bovine rhinotracheitis (IBR) virus, an alpha-herpesvirus with a class D genome, is an important pathogen of cattle. It has been associated with respiratory, ocular, reproductive, central nervous system, enteric, neonatal, and dermal diseases (34) . Cattle are the normal hosts of infectious bovine rhinotracheitis virus, however it also infects goats, swine, water buffalo, wildebeest, mink, and ferrets. Experimental infections have been established in mule deer, goats, swine, ferrets, and rabbits (35) . Conventional modified live virus vaccines have been widely used to control diseases caused by infectious bovine rhinotracheitis virus. However, these vaccine viruses may revert to virulence. More recently, killed virus infectious bovine rhinotracheitis vaccines have been used, but their efficacy appears to be marginal. Infectious bovine rhinotracheitis virus has been analyzed at the molecular level as reviewed in Ludwig (36) . A restriction map of the genome is available in this reference, which will aid in the genetic engineering of infectious bovine rhinotracheitis according to the methods provided by the present invention. As reported in the current literature, infectious bovine rhinotracheitis virus has been engineered to contain a thymidine kinase deletion (43,44) and a deletion in the gill gene (45,46) . However, no evidence has been presented for the deletions in the US2, repeat, gG, or gE regions. In the subject application, usefulness of such deletions for both the attenuation of infectious bovine rhinotracheitis virus and for the development of gene deleted marker vaccines is demonstrated. As with other herpesviruses, infectious bovine rhinotracheitis virus can become latent in healthy animals which makes them potential carriers of the virus. For this reason it is clearly advantageous to be able to distinguish animals vaccinated with non- virulent virus from animals infected with disease- causing wild type virus. The development of differential vaccines and companion diagnostic tests has proven valuable in the management of pseudorabies disease (47) . A similar differential marker vaccine would be of great value in the management of infectious bovine rhinotracheitis disease. The construction of differential diagnostics has focused on the deletion of glycoproteins. Theoretically, the glycoprotein chosen to be the diagnostic marker should have the following characteristics: (1) the glycoprotein and its gene should be non-essential for the production of infectious virus in tissue culture; (2) the glycoprotein should elicit a major serological response in the animal; and (3) the glycoprotein should not be one that makes a significant contribution to the protective immunity. Four major infectious bovine rhinotracheitis virus glycoproteins (gl, gll, gill, and gIV) have been described in the literature (48) . Three of these genes, gl, gill, and gIV, have been sequenced and shown to be homologous to the HSV glycoproteins gB, gC, and gD, respectively. Although it has been suggested that the gll protein is analogous to HSV gE, no sequence evidence has been presented to confirm that suggestion (48) . The gB and gD homologues are essential genes and would not be appropriate as deletion marker genes. The gC gene of herpesviruses has been shown to make a significant contribution to protective immunity as a target of neutralizing antibody (49) and as a target of cell-mediated immunity (50) . Therefore, the gC gene is not desirable as a deletion marker gene. As indicated above, Kit et al. (45) have described the deletion of the infectious bovine rhinotracheitis virus gill as a marker gene. It would be expected that such a deletion would compromise the efficacy of an infectious bovine rhinotracheitis vaccine. For pseudorabies virus (PRV) the criteria for a deletion marker gene are best met by the glycoprotein X (51) . Wirth et al. (52) suggests the existence of a "gX homologue of HSV-1" in the infectious bovine rhinotracheitis virus. It is not clear what is meant by this because although there is a PRV gX gene, there is no reported HSV-1 gX gene or gX homologous gene. In any case, no sequence evidence is presented to support this suggestion. Clear evidence of homologues of PRV gX (HSV-2 gG) and PRV gl (HSV gE) in infectious bovine rhinotracheitis virus and their usefulness as diagnostic markers is demonstrated. The present invention provides a method of producing a fetal-safe, live recombinant infectious bovine rhinotracheitis virus which comprises treating viral DNA from a naturally-occurring live infectious bovine rhinotracheitis virus so as to delete from the virus DNA corresponding to the US2 region of the naturally- occurring infectious bovine rhinotracheitis virus. The present invention also provides viruses in which (1) DNA corresponding to the US2 region of naturally- occurring infectious bovine rhinotracheitis virus has been deleted, and (2) DNA encoding gG and/or gE has been altered or deleted. Such viruses are useful in vaccines which need diagnostic markers and are safe for use in pregnant animals. The ability to engineer DNA viruses with large genomes, such as vaccinia virus and the herpesviruses, has led to the finding that these recombinant viruses can be used as vectors to deliver immunogens to animals (53) . The herpesviruses are attractive candidates for development as vectors because their host range is primarily limited to a single target species (54) , and they have the capacity for establishing a latent infection (55) that could provide for stable in vivo expression of a desired cloned polypeptide. Herpesviruses have been engineered to express a variety of foreign gene products, such as bovine growth hormone (56) , human tissue plasminogen activator (57) , and E. coli β-galactosidase (58,59). In addition, possible immunogenic polypeptides have been expressed by herpesviruses. Whealy et al. (60) expressed portions of the human immunodeficiency virus type 1 envelope glycoprotein in pseudorabies virus (PRV) as fusions to the PRV glycoprotein III. The hepatitis B virus surface antigen (61) and a hybrid human malaria antigen from Plasmodium falciparum have been expressed in herpes simplex virus type 1 (HSV-1) (62) . The infectious bovine rhinotracheitis viruses described above may be used as vectors for the insertion of genes encoding antigens from microorganisms causing important cattle diseases. Such recombinant viruses would be ultivalent vaccines protecting against infectious bovine rhinotracheitis as well as other diseases. Kit et al. (63) have described the expression of a Foot and Mouth disease antigen in infectious bovine rhinotracheitis virus. In some of the prior applications from which the subject application claims priority (which precedes the Kit publication by at least three years) , the use of infectious bovine rhinotracheitis virus to express several foreign genes including the E. coli β-galactosidase (lacZ) gene, the TN5 neomycin resistance gene, and antigens from bovine rota virus, and parainfluenza type 3 virus (see U.S. Serial No. 06/933,107, filed November 20, 1986 and U.S. Serial No. 07/078,519, filed July 27, 1987) is described. These applications precede the Kit publication by at least three years. The viruses described in this application provide a combination of attenuation, differentiation and multivalency. These properties make such viruses useful as vaccines for the management of cattle diseases. SUMMARY OF THE INVENTION The present invention provides a recombinant infectious bovine rhinotracheitis designated S-IBR-052 (ATCC Accession No. VR 2443) . The present invention also provides a vaccine which comprises an effective immunizing amount of the recombinant infectious bovine rhinotracheitis virus designated S-IBR-052 and a suitable carrier. The present invention provides homology vectors, methods of immunization and a method of distinguishing an animal vaccinated with the vaccines of the present invention from an animal infected with a naturally- occurring infectious bovine rhinotracheitis virus. BRIEF DESCRIPTION OF THE INVENTION Figure 1: Details of the infectious bovine rhinotracheitis Cooper Strain. Diagram of infectious bovine rhinotracheitis genomic DNA showing the unique long, internal repeat, unique short, and Terminal repeat regions. Restriction maps for the enzymes Hindlll, JScoRI, and Xbal are indicated (7) . Fragments are lettered in order of decreasing size. The unique short region is also expanded for inclusion of more detail. The location of several genes is also indicated, they are unique short 2 (US2) , immediate early genes (IE) (20) , glycoprotein G (gG) , glycoprotein IV (gIV) (17) , glycoprotein E (gE) . Note that due to the inversion of the short region, which includes the unique short, internal, and terminal repeats, four half molar Hindlll fragments are present (Hindlll D, C, F, and H) . Ficrure 2: Details of S-IBR-002. Diagram of S-IBR-002 genomic DNA showing ' the unique long, internal repeat, unique short, and Terminal repeat regions. Restriction maps for the enzymes Hindlll, EcoRI, and Xbal are indicated (7) . Fragments are lettered in order of decreasing size. The JScoRI B and F fragments are expanded for inclusion of more detail. The -800 BP repeat deletions are indicated by deltas. Note that due to the inversion of the short region, which includes the unique short, internal, and terminal repeats, four half molar HindiII fragments are present (Hindlll D, C, F, and H) . Ficrure 3 : DNA sequence of the IBR Unique Short 2 gene. The sequence of the first 1080 base pairs of the Hindlll K fragment, reading from the HindiII K/ Hindlll O junction, are shown. The unique short 2 (US2) gene is transcribed toward the Hindi11 K 'Hindi11 0 junction as indicated in Figure 1. The sequence has been reversed and complemented in order to show the translation start and termination of US2 gene. Figures 4A-4B: Homology between the infectious bovine rhinotracheitis US2 protein and the US2 proteins of HSV-1, PRV, HSV-2, and marek's disease virus. (a) Matrix plot of the amino acid sequence of the infectious bovine rhinotracheitis US2 protein (309) against the amino acid sequence of the HSV-1 US2 protein (291) (8) . (b) Alignment of the conserved region between infectious bovine rhinotracheitis US2 protein, HSV-1 US2 protein, PRV US2 protein (256 amino acids) (21), HSV-2 US2 protein (291) (9) , and marek's disease virus US2 protein (270 amino acids) (1) . Figures 5A-5B: Details of the Nasalgen deletion. Diagram of infectious bovine rhinotracheitis genomic DNA showing the unique long, internal repeat, unique short, and terminal repeat regions. A restriction map for the enzyme HindiII is indicated. Fragments are lettered in order of decreasing size. The unique ..short region is expanded for inclusion of more detail. The location of the deletion in the Nasalgen Hindlll K fragment is shown. Three regions of DNA sequence are also shown. The first line shows the first 60 base pairs upstream of the Hindlll 0/HindIII D junction in the infectious bovine rhinotracheitis Cooper strain. The second line shows the first 60 base pairs upstream of the Hindlll K/ Hindlll D junction in the Nasalgen strain. The third line shows 60 base pairs flanking the DNA encoding amino acid 59 of the infectious bovine rhinotracheitis US2 gene in the infectious bovine rhinotracheitis Cooper strain. Figure 6: Details of S-IBR-027. Diagram of S-IBR-027 genomic DNA showing the unique long, internal repeat, unique short, and terminal repeat regions. Restriction maps for the enzymes Hindlll, UcoRI, and Xbal are indicated (7) . Fragments are lettered in order of decreasing size. The unique short region is also expanded for inclusion of more detail. The location of several genes is also indicated, they are unique short 2 (US2) , immediate early genes (IE) (20) , glycoprotein G (gG) , glycoprotein IV (gIV) (17) , glycoprotein E (gE) . The unique short region and repeat region deletions are indicated by deltas. The location of the approximately 1200 BP deletion of the US2 gene is shown in the expanded region. Note that due to the inversion of the short region, which includes the unique short, internal, and terminal repeats, four half molar Hindlll fragments are present (Hindlll D, C, F, and H) . Figures 7A-7H: Detailed description of the DNA insertion in Homology Vector 129-71.5. Diagram showing the orientation of DNA fragments assembled in plasmid 129-71.5. The origin of each fragment is indicated in the table. The sequences located at each of the junctions between fragments is also shown. The restriction sites used to generate each fragment as well as synthetic linker sequences which were used to join the fragments are described for each junction. The synthetic linker sequences are underlined by a heavy bar. The location of several gene coding regions and regulatory elements is also given. The following two conventions are used: numbers in parentheses, () , refer to amino acids, and restriction sites in brackets, [] , indicate the remnants of sites which were destroyed during construction. The following abbreviations are used: polyadenylation signal (pA) , infectious bovine rhinotracheitis virus (IBR) , Herpes simplex virus type 1 (HSV-1) , thymidine kinase (TK) , neomycin resistance (NEO) , bacterial transposon Tn5 (Tn5) . Figure 8; DNA sequence of the IBR glycoprotein G gene. The sequence of approximately 1400 base pairs of the Hindlll K fragment, starting approximately 2800 base pairs downstream of the Hindlll K/ Hindlll 0 junction, are shown. The glycoprotein G (gG) gene is transcribed away from the Hindlll K/ Hindlll 0 junction as indicated in Figure 1. The translational start and termination of the gG gene are indicated. Figures 9A-9B; Homology between the IBR gG protein, the gX protein of PRV and the gG protein of HSV-2. (a) Matrix plot of the amino acid sequence of the IBR gG protein (441) against the amino acid sequence of the PRV gX protein (498) (12) . (b) Alignment of the conserved region between IBR gG protein, PRV gX protein, and HSV-2 gG protein (699) (9) . Note that IUPAC-IUB Biochemical Nomenclature Commission conventions are used. Figure 10: Western blot of proteins released into the medium of IBR and PRV infected cells, showing the absence of gG in S-PRV-013, S- IBR-035, S-IBR-036, S-IBR-037, and S-IBR-038 but its presence in S-PRV-160 and wild type S-IBR-000. Lanes (A) 0.5 μg purified gG, (B) blank lane, (C) S-PRV-160, (D) S-PRV- 013, (E) pre-stained molecular weight markers, (F) 0.5 μg purified gG, (G) S-IBR- 038, (H) S-IBR-037, (I) S-IBR-036, (J) S- IBR-035, (K) S-IBR-000, (L) uninfected MDBK cells, (M) pre-stained molecular weight markers. Media samples were prepared as described in the PREPARATION OF HERPESVIRUS CELL LYSATES. The concentrated media from the infection of one 6 cm dish of infected cells was loaded in each sample lane except for samples S-PRV-013 and S-PRV-160 for which the media from two 6 cm dishes were loaded. Figures 11A-11H: Detailed description of the DNA insertion in Plasmid 459-12.6. Diagram showing the orientation of DNA fragments assembled in plasmid 459-12.6. The origin of each fragment is indicated in the table. The sequences located at each of the junctions between fragments is also shown. The restriction sites used to generate each fragment as well as synthetic linker sequences which were used to join the fragments are described for each junction. The synthetic linker sequences are underlined by a heavy bar. The location of several gene coding regions and regulatory elements is also given. The following two conventions are used: numbers in parentheses, () , refer to amino acids, and restriction sites in brackets, [] , indicate the remnants of sites which were destroyed during construction. The following abbreviations are used: unique glycoprotein G (gG) , glycoprotein III (gill) , glycoprotein X (gX) , polyadenylation signal (pA) , infectious bovine rhinotracheitis virus (IBR) , pseudorabies virus (PRV) , and human cytomegalovirus (HCMV) . Figures 12A-12H: Detailed description of the DNA insertion in Homology Vector 439-01.31. Diagram showing the orientation of DNA fragments assembled in plasmid 439-01.31. The origin of each fragment is indicated in the table . The sequences located at each of the junctions between fragments is also shown. The restriction sites used to generate each fragment as well as synthetic linker sequences which were used to join the fragments are described for each junction. The synthetic linker sequences are underlined by a heavy bar. The location of several gene coding regions and regulatory elements is also given. The following two conventions are used: numbers in parentheses, () , refer to amino acids, and restriction sites in brackets, [] , indicate the remnants of sites which were destroyed during construction. The following abbreviations are used: unique short 2 (US2) , glycoprotein G (gG) , glycoprotein IV (gIV) , polyadenylation signal (pA) , infectious bovine rhinotracheitis virus (IBR) , pseudorabies virus (PRV) , and human cytomegalovirus (HCMV) . Figures 13A-13H: Detailed description of the DNA insertion in Homology Vector 439-21.69. Diagram showing the orientation of DNA fragments assembled in plasmid 439-21.69. The origin of each fragment is indicated in the table . The sequences located at each of the junctions between fragments is also shown. The restriction sites used to generate each fragment as well as synthetic linker sequences which were used to join the fragments are described for each junction. The synthetic linker sequences are underlined by a heavy bar. The location of several gene coding regions and regulatory elements is also given. The following two conventions are used: numbers in parentheses, (), refer to amino acids, and restriction sites in brackets, [] , indicate the remnants of sites which were destroyed during construction. The following abbreviations are used: unique short 2 (US2) , glycoprotein G (gG) , glycoprotein IV (gIV) , polyadenylation signal (pA) , infectious bovine rhinotracheitis virus (IBR) , pseudorabies virus (PRV) , and human cytomegalovirus (HCMV) . Figures 14A-14E: Detailed description of the DNA insertion in Homology Vector 439-70.4. Diagram showing the orientation of DNA fragments assembled in plasmid 439-70.4. The origin of each fragment is indicated in the table. The sequences located at each of the junctions between fragments is also shown. The restriction sites used to generate each fragment as well as synthetic linker sequences which were used to join the fragments are described for each junction. The synthetic linker sequences are underlined by a heavy bar. The location of several gene coding regions and regulatory elements is also given. The following two conventions are used: numbers in parentheses, () , refer to amino acids, and restriction sites in brackets, [] , indicate the remnants of sites which were destroyed during construction. The following abbreviations are used: glycoprotein G (gG) , glycoprotein IV (gIV) , and infectious bovine rhinotracheitis virus (IBR) . Figures 15A- 15B : DNA sequence of the IBR glycoprotein E gene. The sequence of 2038 base pairs of the IBR unique short region, starting approximately 1325 base pairs upstream in the Hindlll K/Hindlll F junction in the Hindlll K fragment, are shown. The glycoprotein E (gE) gene is transcribed toward the Hindlll K/ Hindlll F junction as indicated in Figure 1. The translation start and termination of the gE gene are indicated. Note that IUPAC- IUB Biochemical Nomenclature Commission conventions are used. Figures 16A-16B: Homology between the IBR gE protein and the gE protein of HSV-1, the gl protein of VZV, and the gl protein of PRV. (a) Matrix plot of the amino acid sequence of the IBR gE protein (617) against the amino acid sequence of the PRV gl protein (577) (64) . (b) Alignment of the conserved region between IBR gE protein, PRV gl protein, and VZV gl protein (37) . Figures 17A-17E: Detailed description of a plasmid containing the gE gene. Diagram showing the orientation of DNA fragments to be assembled in the gE-containing plasmid. The origin of each fragment is indicated in the table. The sequences located at each of the junctions between fragments are also shown. The restriction sites used to generate each fragment are described for each junction. The location of several gene coding regions and regulatory elements is also given. The following two conventions are used: numbers in parentheses, () , refer to amino acids, and restriction sites in brackets, [] , indicate the remnants of sites which were destroyed during construction. The following abbreviations are used: unique glycoprotein E (gE) , glycoprotein IV (gIV) , and infectious bovine rhinotracheitis virus (IBR) . Figures 18A-18G: Detailed description of the DNA insertion in the homology vector 536-03.5. Diagram showing the orientation of DNA fragments to be assembled in the homology vector. The origin of each fragment is indicated in the table. The sequences located at each of the junctions between fragments is also shown. The restriction sites used to generate each fragment as well as synthetic linker sequences which were used to join the fragments are described for each junction. The synthetic linker sequences are underlined by a heavy bar. The location of several gene coding regions and regulatory elements is also given. The following two conventions are used: numbers in parentheses, () , refer to amino acids, and restriction sites in brackets, [] , indicate the remnants of sites which were destroyed during construction. The following abbreviations are used: glycoprotein E (gE) , immediate early promoter (IE) , infectious bovine rhinotracheitis virus (IBR) , and pseudorabies virus (PRV) . Figure 19 : Construction of Recombinant S-IBR-004 Virus. S-IBR-004. is an IBR recombinant virus carrying an inserted foreign gene (NEO) under the control of the PRV gX promoter. A new Xbal site was created at the short unique region and the original SacI site was deleted. Figure 20: Construction of Recombinant S-IBR-008 Virus. S-IBR-008 is a recombinant IBR virus that has a bovine rotavirus glycoprotein gene and the plasmid vector inserted in the Xbal site on the unique long region. A site specific deletion was created at the [Sad] site due to the loss of NEO gene in the small unique region. Figures 21A-21B: Sequence of the PI-3 (SF-4 Strain) HN Gene. Note that IUPAC-IUB Biochemical Nomenclature Commission conventions are used. Figures 22A-22C: Details of S-IBR-018 Construction. A. First line shows the IBR (Cooper Strain) BamHI-C fragment map. Second line shows the construction of the alpha-4 promoter on the PI-3 HN gene and its insertion into the Hindlll site in BarriHI-C. Also shown are the beta- gal and neomycin (NEO) gene constructions under the control of the gX promoter that were put into the Xbal site and used as selectable markers to purify the recombinant virus. B. The BamHI-C fragment map of S-IBR-018 after insertion of the PI-3 HN, beta- gal, and neomycin genes. C. The S-IBR-018 genome showing the location of the three inserted foreign genes. Legend: B = BamHI; H = Hindlll; X = Xbal; S = StuI ; UL = unique long region; US = unique short region; IR = internal repeat region; TR = terminal repeat region. Figures 23A-23C: Details of S-IBR-019 Construction. A. First line shows the IBR (Cooper Strain) BamHI-C fragment map. Second line shows the construction of the alpha-4 promoter on the PI-3 F gene and its insertion into the Hindlll site in BamHI-C. Also shown are the beta-gal and neomycin (NEO) gene constructions under the control of the gX promoter that were put into the Xbal site and used as selectable markers to purify the recombinant virus. B. The BamHI-C fragment map of S-IBR-019 after insertion of the PI-3 F, beta gal, and neomycin genes. C. The S-IBR-019 genome showing the location of the three inserted foreign genes. Ficrure 24: Detailed description of the DNA insertion in Homology • • Vector 591-21.20. The diagram shows the orientation of DNA fragments assembled in plasmid 591-21.20. The origin of each fragment is described in the MATERIALS AND METHODS section. The sequences located at the junctions between each fragment are shown. The restriction sites used to generate each fragment as well as synthetic linker sequences which were used to join the fragments are described for each junction. The synthetic linker sequences are underlined by a double bar. The location of the Tk gene coding region is also given. The following two conventions are used: numbers in parenthesis 0 refer to amino acids, and restriction sites in brackets [] indicate the remnants of sites which were destroyed during construction. The following abbreviation is used, infectious bovine rhinotracheitis virus (IBR) . Figures 25A-25B: Detailed description of the marker gene insertion in Homology Vector 591-46.12. The diagram shows the orientation of DNA fragments assembled in the marker gene. The origin of each fragment is described in the MATERIALS AND METHODS section. The sequences located at the junctions between each fragment and at the ends of the marker gene are shown. The restriction sites used to generate each fragment are indicated at the appropriate junction. The location of the uidA gene coding region is also given. The following two conventions are used: numbers in parenthesis () refer to amino acids, and restriction sites in brackets [] indicate the remnants of sites which were destroyed during construction. The following abbreviations are used, pseudorabies virus (PRV) , uronidase A gene (uidA) , Escherichia coli (E. coli) , herpes simplex virus type 1 (HSV-1) , poly adenylation signal (pA) , and glycoprotein X (gX) . Legend: B = BamHI; H = Hindlll; X = Xbal; S = StuI ; UL = unique long region; US = unique short region; IR = internal repeat region; TR = terminal repeat region. Figures 26A-26B: Detailed description of the DNA insertion in the homology vector 523-78.72. Diagram showing the orientation of DNA fragments to be assembled in the homology vector. The origin of each fragment is indicated in the table. The sequences located at each of the junctions between fragments is also shown. The restriction sites used to generate each fragment as well as synthetic linker sequences which were used to join the fragments are described for each junction. The synthetic linker sequences are underlined by a heavy bar. The location of several gene coding regions and regulatory elements is also given. The following two conventions are used: numbers in parentheses, () , refer to amino acids, and restriction sites in brackets, [] , indicate the remnants of sites which were destroyed during construction. The following abbreviations are used: glycoprotein D (gD) , glycoprotein E (gE) , infectious bovine rhinotracheitis virus (IBRV) . Figure 27: Restriction Enzyme Map of the IBRV BamHI C Fragment. The restriction map shows non- essential regions within the BamHI C fragment (21.1 kb) . The BamHI C fragment contains part of the unique long region, all of the internal repeat region and part of the unique short region of IBRV. The Hindlll restriction enzyme site within the 3.9 kb Apal restriction fragment within the larger BamHI - Kpnl subfragment was used as an insertion site for foreign genes in S-IBR- 018, S-IBR-019, S-IBR-069, S-IBR-071, S-IBR- 074, S-IBR-086. The EcdRV restriction enzyme site within the smaller Kpnl - BamHI subfragment within the repeat region of IBRV is used as an insertion site for foreign genes in S-IBR-072. The Xbal restriction enzyme site within the 3.9 kb Apal restriction fragment within the larger BamHI - Kpnl subfragment was used as an insertion site for foreign genes in S-IBR-018 and S- IBR-019. DETAILED DESCRIPTION OF THE INVENTION The present invention provides a recombinant infectious bovine rhinotracheitis (IBR) virus designated S-IBR-052 (ATCC Accession No. VR 2443) . S-IBR-052 was deposited on February 4, 1994 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. VR 2443. The present invention provides a recombinant infectious bovine rhinotracheitis virus, further comprising a foreign DNA sequence inserted into the IBR virus genomic DNA, wherein the foreign DNA sequence is inserted within a BamHI C fragment of the infectious bovine rhinotracheitis virus genomic DNA and is capable of being expressed in a infectious bovine rhinotracheitis virus infected host cell. In one embodiment the foreign DNA is inserted within a larger BamHI - Kpnl subfragment of the BamHI C fragment of the infectious bovine rhinotracheitis virus genomic DNA. In another embodiment the foreign DNA sequence is inserted within a Hindlll site located within the larger BamHI - Kpnl subfragment of the infectious bovine rhinotracheitis virus genomic DNA. In another embodiment the foreign DNA sequence is inserted within a Xbal site located within the larger BamHI - Kpnl subfragment of the infectious bovine rhinotracheitis virus genomic DNA. In one embodiment the foreign DNA is inserted within a smaller Kpnl - BamHI subfragment of the BamHI C fragment of the infectious bovine rhinotracheitis virus genomic DNA. In another embodiment the foreign DNA sequence is inserted within a EcoRV site located within smaller Kpnl - BamHI subfragment of the infectious bovine rhinotracheitis virus genomic DNA. In another embodiment the infectious bovine rhinotracheitis virus genomic DNA contains a deletion or deletions in a non-essential region of the infectious bovine rhinotracheitis virus. In one embodiment the deletion is in either the US2, gG or gE gene regions. In another embodiment the infectious bovine rhinotracheitis virus further comprises a foreign DNA sequence inserted into an open reading frame encoding infectious bovine rhinotracheitis virus thymidine kinase. For purposes of this invention, "a recombinant infectious bovine rhinotracheitis virus capable of replication" is a live infectious bovine rhinotracheitis virus which has been generated by the recombinant methods well known to those of skill in the art, e.g., the methods set forth in HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS in Materials and Methods and has not had genetic material essential for the replication of the recombinant infectious bovine rhinotracheitis virus deleted. For purposes of this invention, "an insertion site which is not essential for replication of the infectious bovine rhinotracheitis virus" is a location in the infectious bovine rhinotracheitis viral genome where a sequence of DNA is not necessary for viral replication, for example, complex protein binding sequences, sequences which code for reverse transcriptase or an essential glycoprotein, DNA sequences necessary -for packaging, etc. For purposes of this invention, an "open reading frame" is a segment of DNA which contains codons that can be transcribed into RNA which can be translated into an amino acid sequence and which does not contain a termination codon. The present invention provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gG glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gG glycoprotein. The DNA encoding gG glycoprotein may be deleted or foreign DNA may be inserted into the DNA encoding gG glycoprotein. The DNA encoding gG glycoprotein may be deleted and foreign DNA may be inserted in place of the deleted DNA encoding gG glycoprotein. The present invention further provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gG glycoprotein has been altered or deleted and DNA encoding the gE glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gG glycoprotein and nc gE glycoprotein. The DNA encoding gG glycoprotein may be deleted or foreign DNA may be inserted into the DNA encoding gG glycoprotein. The DNA encoding gE glycoprotein may be deleted and foreign DNA may be inserted in place of the deleted DNA encoding gE glycoprotein. The present invention further provides a recombinant infectious bovine .rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gG glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gG glycoprotein, DNA corresponding to the US2 region of the naturally- occurring infectious bovine rhinotracheitis virus has been deleted, and DNA encoding the gE glycoprotein has been altered or deleted. The present invention also provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which (1) DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus has been deleted, and (2) DNA encoding gG glycoprotein has been altered or deleted. The DNA encoding the gG glycoprotein may be deleted or foreign DNA may be inserted in place of the deleted DNA encoding gG glycoprotein. Foreign DNA may be inserted in place of the deleted DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus. The present invention also provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which (1) DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus has been deleted, and (2) DNA encoding gE glycoprotein has been altered or deleted. The DNA encoding the gG glycoprotein may be deleted or foreign DNA may be inserted in place of the deleted DNA encoding gE glycoprotein. Foreign DNA may be inserted in place of the deleted DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus. The present invention also provides S-IBR-037, a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which (1) DNA corresponding to the US2 region of the naturally- occurring infectious bovine rhinotracheitis virus has been deleted, and (2) DNA encoding gG glycoprotein has been deleted. S-IBR-037 was deposited on April 16, 1991 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. VR 2320. The present invention also provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which (1) DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus has been deleted and a foreign DNA sequence which encodes Escherichia coli β- galactosidase has been inserted in place of the deleted DNA encoding gG glycoprotein, and (2) DNA encoding gG glycoprotein has been altered or deleted. The present invention also provides two examples of such viruses, S-IBR-035 and S-IBR-036. The present invention further provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gE glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gE glycoprotein. The DNA encoding gE glycoprotein may be deleted or foreign DNA may be inserted in the DNA encoding gE glycoprotein. The DNA encoding gE glycoprotein may be deleted and foreign DNA may be inserted in place of the deleted DNA encoding gE glycoprotein. The present invention further provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gE glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gE glycoprotein and DNA corresponding to the US2 region of the naturally- occurring infectious bovine rhinotracheitis virus has been deleted. The present invention further provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus from which DNA in the unique short region of the naturally-occurring infectious bovine rhinotracheitis virus has been deleted. Foreign DNA may be inserted into the DNA of the recombinant infectious bovine rhinotracheitis virus. The foreign DNA may be inserted into the Xbal site in the long unique region. The foreign DNA may be a sequence which encodes bovine rotavirus glycoprotein 38; this sequence may be inserted into the Xbal site in the long unique region. The present invention provides S-IBR-008, a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus from which DNA corresponding to the unique short region of the naturally-occurring infectious bovine rhinotracheitis virus has been deleted and in which a foreign DNA sequence which encodes bovine rotavirus glycoprotein 38 has been inserted into the Xbal site in the long unique region. S-IBR-008 was deposited on June 18, 1986 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. VR 2141. The present invention further provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus from which (1) DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus has been deleted and (2) at least a portion of both repeat sequences has been deleted. The present invention further provides an example of such a recombinant virus, designated S-IBR- 027. S-IBR-027 was deposited on April 17, 1991 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. VR 2322. The present invention further provides a recombinant IBR virus comprising viral DNA from a naturally- occurring IBR virus from which at least a portion of both repeat sequences has been deleted. The present invention further provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring IBR virus from which (1) at least a portion of both repeat sequences has been deleted and (2) DNA encoding one or more EcoRV restriction sites has been deleted. The present invention further provides an example of such a recombinant virus, designated S-IBR-002. S-IBR-002 was deposited on June 18, 1986 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. VR 2140. The present invention further provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus from which (1) at least a portion of both repeat sequences has been deleted and (2) wherein foreign DNA has been inserted into the DNA of the recombinant infectious bovine rhinotracheitis virus. The foreign DNA may be a sequence which encodes the Tn5 NEO gene. The present invention further provides S-IBR-020, a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring IBR virus from which (1) at least a portion of both repeat sequences has been deleted and (2) wherein a foreign DNA sequence which encodes the Tn5 NEO gene has been inserted into the DNA of the recombinant infectious bovine rhinotracheitis virus. The present invention also provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus from which (1) at least a portion of both repeat sequences has been deleted, (2) wherein a foreign DNA sequence which encodes the Tn5 NEO gene has been inserted into the DNA of the recombinant infectious bovine ■• rhinotracheitis virus, and (3) wherein at least a portion of the thymidine kinase gene has been deleted. The present invention also provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus from which (1) at least a portion of both repeat sequences has been deleted, (2) wherein a foreign DNA sequence which encodes the Tn5 NEO gene has been inserted into the DNA of the recombinant infectious bovine rhinotracheitis virus, and (3) wherein at least a portion of the thymidine kinase gene has been deleted. The subject invention provides an example of such a recombinant virus, designated S-IBR- 028. S-IBR-028 was deposited on May 14, 1991 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. VR 2326. The present invention further provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring IBR virus in which a foreign DNA sequence which encodes the Tn5 NEO gene has been inserted into the viral DNA. The Tn5 NEO gene may be under the control of an inserted, upstream, pseudorabies virus glycoprotein X promoter. The subject invention further provides an example of a recombinant virus wherein the Tn5 NEO gene is under the control of an inserted, upstream, pseudorabies virus glycoprotein X promoter, designated S-IBR-004. S-IBR- 004 was deposited on May 23, 1986 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. VR 2134. The subject invention further provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which a foreign DNA sequence which encodes the Escherichia coli β-galactosidase and Tn5 NEO genes, and the parainfluenza type 3 virus hemagglutinin gene, HN, has been inserted into the viral DNA. The subject invention provides an example of such a recombinant virus, designated S-IBR-018. The subject invention further provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which a foreign DNA sequence which encodes the Escherichia coli β-galactosidase and Tn5 NEO genes, and the parainfluenza type 3 virus fusion gene, F, has been inserted into the viral DNA. The subject invention provides an example of such a recombinant virus, designated S-IBR-019. The recombinant viruses of the subject invention were derived from the Cooper Strain. However, other infectious bovine rhinotracheitis viruses, such as the LA strain or the 3156 strain, may also be used. The invention further provides a foreign DNA sequence or foreign RNA which encodes a polypeptide. Preferably, the polypeptide is antigenic in the animal. Preferably, this antigenic polypeptide is a linear polymer of more than 10 amino acids linked by peptide bonds which stimulates the animal to produce antibodies. The invention further provides a recombinant infectious bovine rhinotracheitis virus capable of replication which contains a foreign DNA encoding a polypeptide which is a detectable marker. Preferably the detectable marker is the polypeptide E. coli β- galactosidase. For purposes of this invention, a "polypeptide which is a detectable marker" includes the bimer, trimer and tetramer form of the polypeptide. E. coli β- galactosidase is a tetramer composed of four polypeptides or monomer sub-units. The invention further provides a recombinant infectious bovine rhinotracheitis virus capable of replication which contains foreign DNA encoding an antigenic polypeptide which is or is from Serpulina hyodysenteriae, Foot and Mouth Disease Virus, Hog Cholera Virus, Swine Influenza Virus, African Swine Fever Virus or Mycoplasma hyopneumoniae . The invention further provides for a recombinant infectious bovine rhinotracheitis virus capable of replication which contains foreign DNA encoding pseudorabies virus (PRV) g50 (gD) . This recombinant infectious bovine rhinotracheitis virus can be further engineered to contain foreign DNA encoding a detectable marker, such as E. coli β-galactosidase. In one embodiment of the recombinant infectious bovine rhinotracheitis virus the foreign DNA sequence encodes a cytokine. In another embodiment the cytokine is chicken myelomonocytic growth factor (cMGF) or chicken interferon (cIFN) . Cytokines include, but are not limited to: transforming growth factor beta, epidermal growth factor family, fibroblast growth factors, hepatocyte growth factor, insulin-like growth factors, B-nerve growth factor, platelet-derived growth factor, vascular endothelial growth factor, interleukin 1, IL-1 receptor antagonist, interleukin 2, interleukin 3, interleukin 4, interleukin 5, interleukin 6, IL-6 soluble receptor, interleukin 7, interleukin 8, interleukin 9, interleukin 10, interleukin 11, interleukin 12, interleukin 13, angiogenin, chemokines, colony stimulating factors, granulocyte-macrophage colony stimulating factors, erythropoietin, interferon, interferon gamma, leukemia inhibitory factor, oncostatin M, pleiotrophin, secretory leukocyte protease inhibitor, stem cell factor, tumor necrosis factors, and soluble TNF receptors. These cytokines are from humans, bovine, equine, feline, canine, porcine or avian. Recombinant IBRV expressing cytokines is useful to enhance the immune response when combined with vaccines containing anitgens of disease causing microorganisms. The present invention further provides a recombinant infectious bovine rhinotracheitis virus which comprises a foreign DNA sequence inserted into a non-essential site of the infectious bovine rhinotracheitis virus genome, wherein the foreign DNA sequence encodes an antigenic polypeptide derived from a human pathogen and is capable of being expressed in a host infected by the recombinant infectious bovine rhinotracheitis virus. Recombinant infectious bovine rhinotracheitis virus expressing cytokines is used to enhance the immune response either alone or when combined with vaccines containing cytokines or antigen genes of disease causing microorganisms. Antigenic polypeptide of a human pathogen which are derived from human herpesvirus include, but are not limited to: hepatitis B virus and hepatitis C virus hepatitis B virus surface and core antigens, hepatitis C virus, human immunodeficiency virus, herpes simplex virus-1, herpes simplex virus-2, human cytomegalovirus, Epstein-Barr virus, Varicella-Zoster virus, human herpesvirus-6, human herpesvirus-7, human influenza, measles virus, hantaan virus, pneumonia virus, rhinovirus, poliovirus, human respiratory syncytial virus, retrovirus, human T-cell leukemia virus, rabies virus, mumps virus, malaria {Plas odium falciparum) , Bordetella pertussis , Diptheria, Rickettsia prowazekii , Borrelia berfdorferi , Tetanus toxoid, malignant tumor antigens. In one embodiment of the invention, a recombinant infectious bovine rhinotracheitis virus contains the foreign DNA sequence encoding hepatitis B virus core protein. The antigenic polypeptide of an equine pathogen is derived from equine influenza virus, or equine herpesvirus. In one embodiment the antigenic polypeptide is equine influenza neuraminidase or hemagglutinin. Examples of such antigenic polypeptide are: equine influenza virus type A/Alaska 91 neuraminidase and hemagglutinin, equine influenza virus type A/Prague 56 neuraminidase and hemagglutinin, equine influenza virus type A/Miami 63 neuraminidase, equine influenza virus type A/Kentucky 81 neuraminidase and hemagglutinin, equine herpesvirus type 1 glycoprotein B, and equine herpesvirus type 1 glycoprotein D, Streptococcus egui , equine infectious anemia virus, equine encephalitis virus, equine rhinovirus and equine rotavirus. The present invention further provides an antigenic polypeptide which includes, but is not limited to: hog cholera virus gEl, hog cholera virus gE2, swine influenza virus hemagglutinin, neuraminidase, matrix and nucleoprotein, pseudorabies virus gB, gC and gD, and PRRS virus 0RF7. The present invention further provides a recombinant infectious bovine rhinotracheitis virus which comprises a foreign DNA sequence inserted into a non-essential site of the infectious bovine rhinotracheitis virus genome, wherein the foreign DNA sequence encodes an antigenic polypeptide derived from bovine respiratory syncytial virus or bovine parainfluenza virus, and is capable of being expressed in a host infected by the recombinant infectious bovine rhinotracheitis virus. For example, the antigenic polypeptide is derived from bovine respiratory syncytial virus attachment protein (BRSV G) , bovine respiratory syncytial virus fusion protein (BRSV F) , bovine respiratory syncytial virus nucleocapsid protein (BRSV N) , bovine parainfluenza virus type 3 fusion protein, and the bovine parainfluenza virus type 3 hemagglutinin neuraminidase. In one embodiment the recombinant infectious bovine rhinotracheitis virus is designated S-IBR-071. In another embodiment the recombinant infectious bovine rhinotracheitis virus is designated S-IBR-072. In another embodiment the recombinant infectious bovine rhinotracheitis virus is designated S-IBR-073. The present invention further provides a recombinant infectious bovine rhinotracheitis virus which comprises a foreign DNA sequence inserted into a non-essential site of the infectious bovine rhinotracheitis genome, wherein the foreign DNA sequence encodes bovine viral diarrhea virus (BVDV) glycoprotein 48 or glycoprotein 53, and wherein the ' foreign DNA sequence is capable of being expressed in a host infected by the recombinant infectious bovine rhinotracheitis virus. In one embodiment the recombinant infectious bovine rhinotracheitis virus is designated S-IBR-069. In another embodiment the recombinant infectious bovine rhinotracheitis virus is designated S-IBR-074. In another embodiment the recombinant infectious bovine rhinotracheitis virus is designated S-IBR-086. The present invention further provides a recombinant infectious bovine rhinotracheitis virus in which the foreign DNA sequence encodes an antigenic polypeptide which includes, but is not limited to: marek's disease virus (MDV) gA, marek's disease virus gB, marek's disease virus gD, Newcastle disease virus (NDV) HN, Newcastle disease virus F, infectious laryngotracheitis virus (ILT) gB, infectious laryngotracheitis virus gl, infectious laryngotracheitis virus gD, infectious bursal disease virus (IBDV) VP2, infectious bursal disease virus VP3, infectious bursal disease virus VP4, infectious bursal disease virus polyprotein, infectious bronchitis virus (IBV) spike, infectious bronchitis virus matrix, avian encephalomyelitis virus, avian reovirus, avian paramyxovirus, avian influenza virus, avian adenovirus, fowl pox virus, avian coronavirus, avian rotavirus, chick anemia virus, Salmonella spp . E. coli , Pasteurella spp. , Bordetella spp. , Eimeria spp. , Histomonas spp . , Trichomonas spp . , Poultry nematodes, cestodes, trematodes, poultry mites/lice, and poultry protozoa. The invention further provides that the inserted foreign DNA sequence is under the control of an endogenous infectious bovine rhinotracheitis virus promoter. In one embodiment the foreign DNA sequence is under control of a heterologous promoter. In another embodiment the heterologous promoter is a herepesvirus promoter. For purposes of this invention, promoters include but is not limited to: herpes simplex virus type I ICP4 protein promoter, a pseudorabies virus glycoprotein X promoter, PRV gX, HCMV immediate early, marek's disease virus gA, marek's disease virus gB, marek's disease virus gD, infectious laryngotracheitis virus gB, BHV- 1.1 VP8 and infectious laryngotracheitis virus gD. The subject invention also provides a vaccine which comprises a suitable carrier and an effective immunizing amount of any of the recombinant viruses of the present invention. The vaccine may contain either inactivated or live recombinant virus. Suitable carriers for the recombinant virus are well known in the art and include proteins, sugars, etc. One example of such a suitable carrier is a physiologically balanced culture medium containing one or more stabilizing agents such as hydrolyzed proteins, lactose, etc. Preferably, the live vaccine is created by taking tissue culture fluids and adding stabilizing agents such as stabilized, hydrolyzed proteins. Preferably, the inactivated vaccine uses tissue culture fluids directly after inactivation of the virus. The subject invention also provides a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gG glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gG glycoprotein. The subject invention provides a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gG glycoprotein has been altered or deleted and DNA encoding the gE glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gG glycoprotein and no gE glycoprotein. The subject invention also provides a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gG glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gG glycoprotein, DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus has been deleted, and DNA encoding the gE glycoprotein has been altered or deleted. The subject invention further provides a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which (1) DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus has been deleted, and (2) DNA encoding gG glycoprotein has been altered or deleted. The subject invention also provides a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gE glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gE glycoprotein. The subject invention provides a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gE glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gE glycoprotein and DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus has been deleted. The subject invention also provides a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus from which DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus has been deleted. The subject invention provides a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus from which at least a portion of both repeat sequences has been deleted. The subject invention further provides a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which a foreign DNA sequence which encodes the Tn5 NEO gene has been inserted into the viral DNA. The subject invention also provides a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which a foreign DNA sequence which encodes the Escherichia coli β-galactosidase and Tn5 NEO genes, and the parainfluenza type 3 virus hemagglutinin gene, HN, has been inserted into the viral DNA. The subject invention also provides a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which a foreign DNA sequence which encodes the Escherichia coli β-galactosidase and Tn5 NEO genes, and the parainfluenza type 3 virus fusion gene, F, has been inserted into the viral DNA. All of the vaccines described hereinabove and hereinbelow may contain either inactivated or live recombinant virus. The vaccines may be administered by any of the methods well known to those skilled in the art, for example, by intramuscular, subcutaneous, intraperitoneal, or intravenous injection. Alternatively, the vaccine may be administered intranasally or orally. The present invention also provides a method of immunizing an animal against infectious bovine rhinotracheitis virus which comprises administering to the animal an effective immunizing dose of any of the vaccines of the present invention. The animal may be a bovine. As defined herein an animal includes, but is not limited to: a human, swine, bovine, equine, caprine or ovine. For purposes of this invention, this includes immunizing the animal against the virus or viruses which cause the disease or diseases: pseudorabies, transmissible gastroenteritis, swine rotavirus, swine parvovirus, Serpulina hyodysenteriae, bovine viral diarrhea, Newcastle disease, swine influenza, PRRS, bovine respiratory synctial virus, bovine parainfluenza virus type 3, foot and mouth disease, hog cholera, African swine fever or Mycoplasma hyopneumoniae . For purposes of this invention, the method of immunizing also includes immunizing the animal against human pathogens, feline pathogens, bovine pathogens, equine pathogens, avian pathogens described in the preceding part of this section. Recombinant infectious bovine rhinotracheitisV is useful as a vaccine against feline or canine diseases when foreign antigens from the following diseases or disease organisms are expressed in the IBRV vector, including but not limited to feline herpesvirus, feline leukemia virus, feline immunodeficiency virus (FIV) and Dirofilaria immi tis (heartworm) . Disease causing microorganisms in dogs include, but are not limited to canine herpesvirus, canine distemper, canine adenovirus type 1 (hepatitis) , adenovirus type 2 (respiratory disease) , parainfluenza, leptospira canicola, icterohemorragia, parvovirus, coronavirus, Borrelia burgdorferi , canine herpesvirus, Bordetella bronchi septica, Dirofilaria immi tis (heartworm) and rabies virus. FIV env and gag genes expressed in infectious bovine rhinotracheitisV is useful as a vaccine against feline immunodeficiency and is useful to express the FIV env and gag protein antigens for use in a diagnostic assay. D. immitis p39 and 22kD genes expressed in IBRV is useful as a vaccine against heartworm in dogs and cats and is useful to express the D. immitis p39 and 22kD protein antigens for use in a diagnostic assay. Recombinant IBRV is useful as a vaccine against avian diseases when foreign antigens from the following diseases or disease organisms are expressed in the IBRV vector: Chick anemia virus, Avian encephalomyelitis virus, Avian reovirus, Avian paramyxoviruses, Avian influenza virus ,Avian adenovirus, Fowl pox virus, Avian coronavirus, Avian rotavirus, Salmonella spp E coli, Pasteurella spp, Haemophilus spp, Chlamydia spp, Mycoplasma spp, Campylobacter spp, Bordetella spp, Poultry nematodes, cestodes, trematodes, Poultry mites/lice, Poultry protozoa (Eimeria spp, Histomonas spp, Trichomonas spp) . Recombinant IBRV is useful as a vaccine against equine diseases when foreign antigens from the following diseases or disease organisms are expressed in the IBRV vector: Streptococcus egui , equine infectious anemia virus, equine encephalitis virus, equine rhinovirus and equine rotavirus. The method comprises administering to the animal an effective immunizing dose of the vaccine of the present invention. The vaccine may be administered by any of the methods well known to those skilled in the art, for example, by intramuscular, subcutaneous, intraperitoneal or intravenous injection. Alternatively, the vaccine may be administered intranasally or orally. The. present invention also provides a host cell infected with a recombinant infectious bovine rhinotracheitis virus capable of replication. In one embodiment, the host cell is a mammalian cell. Preferably, the mammalian cell is a Vero cell. Preferably, the mammalian cell is an ESK-4 cell, PK-15 cell or EMSK cell. For purposes of this invention a "host cell" is a cell used to propagate a vector and its insert. Infecting the cells was accomplished by methods well known to those of skill in the art, for example, as set forth in INFECTION - TRANSFECTION PROCEDURE in Material and Methods. Methods for constructing, selecting and purifying recombinant infectious bovine rhinotracheitis viruses described above are detailed below in Materials and Methods. The subject invention also provides a method for distinguishing an animal vaccinated with a vaccine which comprises an effective immunizing amount of a recombinant virus of the present invention from an animal infected with a naturally-occurring IBR virus which comprises analyzing a sample of a body fluid from the animal for the presence of gG glycoprotein of infectious bovine rhinotracheitis virus and at least one other antigen normally expressed in an animal infected by a naturally-occurring infectious bovine rhinotracheitis virus, identifying antigens which are present in the body fluid, and determining whether gG glycoprotein is present in the body fluid. The presence of antigens which are normally expressed in an animal by a naturally-occurring infectious bovine rhinotracheitis virus and the absence of gG glycoprotein in the body fluid is indicative of an animal vaccinated with the vaccine and not infected with a naturally-occurring infectious bovine rhinotracheitis virus. The presence of antigens and gG glycoprotein in the body fluid may be determined by detecting in the body fluid antibodies specific for the antigens and gG glycoprotein. One of the vaccines that is useful in this method is a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gG glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gG glycoprotein. Another vaccine that is useful in this method is a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gG glycoprotein has been altered or deleted and DNA encoding the gE glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gG glycoprotein and no gE glycoprotein. Yet another vaccine that is useful in this method is a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gG glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gG glycoprotein, DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus has been deleted, and DNA encoding the gE glycoprotein has been altered or deleted. Still another vaccine that is useful in this method is a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which (1) DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus has been deleted, and (2) DNA encoding gG glycoprotein has been altered or deleted. The present invention also provides a method for distinguishing an animal vaccinated with a vaccine which comprises an effective immunizing amount of a recombinant virus of the present invention from an animal infected with a naturally-occurring infectious bovine rhinotracheitis virus which comprises analyzing a sample of a body fluid from the animal for the presence of gE glycoprotein of infectious bovine rhinotracheitis virus and at least one other antigen normally expressed in an animal infected by a naturally-occurring infectious bovine rhinotracheitis virus, identifying antigens which are present in the body fluid and determining whether gE glycoprotein is present in the body fluid. The presence of antigens which are normally expressed in an animal by a naturally-occurring infectious bovine rhinotracheitis virus and the absence of gE glycoprotein in the body fluid is indicative of an animal vaccinated with the vaccine and not infected with a naturally-occurring infectious bovine rhinotracheitis virus. The presence of antigens and gE glycoprotein in the body fluid may be determined by detecting in the body fluid antibodies specific for the antigens and gE glycoprotein. One of the vaccines useful in this method is a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gG glycoprotein has been altered or deleted and DNA encoding the gE glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gG glycoprotein and no gE glycoprotein. Another vaccine that is useful in this method is a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gG glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gG glycoprotein, DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus has been deleted, and DNA encoding the gE glycoprotein has been altered or deleted. Yet another vaccine that is useful in this method is a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gE glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gE glycoprotein. Still another vaccine that is useful in this method is a vaccine which comprises a suitable carrier and an effective immunizing amount of a recombinant infectious bovine rhinotrachei'tis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus in which DNA encoding gE glycoprotein has been altered or deleted so that upon replication the recombinant infectious bovine rhinotracheitis virus produces no gE glycoprotein and DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus has been deleted. The present invention also provides isolated DNA encoding the gG glycoprotein of infectious bovine rhinotracheitis virus. The subject invention also provides purified recombinant gG glycoprotein encoded by the DNA encoding the gG glycoprotein of infectious bovine rhinotracheitis virus. The subject invention further provides a recombinant cloning vector which comprises the DNA encoding the gG glycoprotein of infectious bovine rhinotracheitis virus. The subject invention also provides a recombinant expression vector which comprises the DNA encoding the gG glycoprotein of infectious bovine rhinotracheitis virus. The subject invention provides a host cell which comprises the recombinant expression vector which comprises the DNA encoding the gG glycoprotein of infectious bovine rhinotracheitis virus. The subject invention also provides a method of producing a polypeptide which comprises growing the host cell which comprises the recombinant expression vector which comprises the DNA encoding the gG glycoprotein of infectious bovine rhinotracheitis virus under conditions such that the recombinant expression vector expresses gG glycoprotein and recovering the gG glycoprotein so expressed. The subject invention also provides an antibody directed to an epitope of the purified gG glycoprotein of infectious bovine rhinotracheitis virus encoded by the DNA encoding the gG glycoprotein of infectious bovine rhinotracheitis virus. The antibody may be a monoclonal antibody. The subject invention also provides a method of detecting the presence or absence of gG glycoprotein of infectious bovine rhinotracheitis virus in a sample which comprises contacting the sample with an antibody directed to an epitope of the purified gG glycoprotein of infectious bovine rhinotracheitis virus encoded by the DNA encoding the gG glycoprotein of infectious bovine rhinotracheitis virus under conditions such that the antibody forms a complex with any gG glycoprotein present in the sample and detecting the presence or absence of such complex. The sample may be bovine- derived. The subject invention also provides isolated DNA encoding the gE glycoprotein of infectious bovine rhinotracheitis virus. The subject invention also provides purified recombinant gE glycoprotein encoded by the DNA encoding the gE glycoprotein of infectious bovine rhinotracheitis virus. The subject invention further provides a recombinant cloning vector which comprises the DNA encoding the gE glycoprotein of infectious bovine rhinotracheitis virus. The subject invention provides a recombinant expression vector which comprises the DNA encoding the gE glycoprotein of infectious bovine rhinotracheitis virus. The subject invention also provides a host cell which comprises the recombinant expression vector which comprises the DNA encoding the gE glycoprotein of infectious bovine rhinotracheitis virus. The subject invention also provides a method of producing a polypeptide which comprises growing the host cell which comprises the recombinant expression vector which comprises the DNA encoding the gE glycoprotein of infectious bovine rhinotracheitis virus under conditions such that the recombinant expression vector expresses gE glycoprotein and recovering the gE glycoprotein so expressed. The subject invention also provides an antibody directed to an epitope of the purified gE glycoprotein of infectious bovine rhinotracheitis virus encoded by the DNA encoding the gE glycoprotein of infectious bovine rhinotracheitis virus. The antibody may be a monoclonal antibody. The subject invention also provides a method of detecting the presence or absence of gE glycoprotein of infectious bovine rhinotracheitis virus in a sample which comprises contacting the sample with an antibody directed to an epitope of the purified gE glycoprotein of infectious bovine rhinotracheitis virus encoded by the DNA encoding the gE glycoprotein of infectious bovine rhinotracheitis virus under conditions such that the antibody forms a complex with any gE glycoprotein present in the sample and detecting the presence or absence of such complex. The sample may be bovine- derived. The subject invention also provides a method of producing a fetal-safe, live recombinant infectious bovine rhinotracheitis virus which comprises treating viral DNA from a naturally-occurring live infectious bovine rhinotracheitis virus so as to delete from the virus DNA corresponding to the US2 region of the naturally-occurring infectious bovine rhinotracheitis virus. The subject invention also provides isolated DNA encoding the US2.. gene of an infectious bovine rhinotracheitis virus. The present invention further provides a homology vector for producing a recombinant infectious bovine rhinotracheitis virus by inserting foreign DNA into the genomic DNA of an infectious bovine rhinotracheitis virus which comprises a double- stranded DNA molecule consisting essentially of double- stranded foreign DNA encoding RNA which does not naturally occur in an animal into which the recombinant infectious bovine rhinotracheitis is introduced, with at one end of the foreign DNA, double-stranded infectious bovine rhinotracheitis viral DNA homologous to genomic DNA located at one side of a site on the genomic DNA which is not essential for replication of the infectious bovine rhinotracheitis virus and at the other end of the foreign DNA, double-stranded infectious bovine rhinotracheitis viral DNA homologous to genomic DNA located at the other side of the same site on the genomic DNA. The double-stranded foreign DNA may further comprise a promoter. The promoter can be from HSV-1 ICP4, Human cytomegalovirus immediate early gene or pseudorabies virus glycoprotein X gene. The double-stranded foreign DNA may further comprise a polyadenylation signal. The polyadenylation signal may be from HSV-1 thymidine kinase gene or pseudorabies virus glycoprotein X gene. The subject invention also provides a homology vector wherein the RNA encodes a polypeptide. The polypeptide may be a detectable marker such as Escherichia coli β-galactosidase or bacterial transposon neomycin resistance protein. The DNA which encodes the polypeptide may be flanked on each side by restriction sites permitting said DNA to be cut out with a restriction endonuclease which cuts at a limited number of sites on the genome. The subject invention further provides for a homology vector wherein the upstream double-stranded infectious bovine rhinotracheitis viral DNA is homologous to genomic DNA present within the approximately 860 bp Ncol to BamHI subfragment of the Hindlll A fragment of infectious bovine rhinotracheitis virus and the downstream double-stranded infectious bovine rhinotracheitis viral DNA is homologous to genomic DNA present within the approximately 1741 bp Bgrlll to StuI subfragment of the Hindlll A fragment of infectious bovine rhinotracheitis virus. The subject invention further provides a homology vector wherein upstream double-stranded foreign DNA which comprises a promoter and downstream double- stranded foreign DNA which comprises a polyadenylation signal flank on each side double-stranded foreign DNA which encodes a detectable marker. The invention further a homology vector wherein the upstream promoter is homologous to genomic DNA present within the approximately 490 bp PvuII to BamHI subfragment of the BamHI N fragment of HSV-1 and the downstream polyadenylation signal is homologous to genomic DNA present within the approximately 784 bp Smal to Smal subfragment of the BamHI Q fragment of HSV-1. The invention further provides a homology vector wherein the DNA which encodes a detectable marker is homologous to the approximately 1541 bp Bgrlll to BamHI fragment of Tn5. The subject invention also provides a homology vector wherein the upstream double-stranded infectious bovine rhinotracheitis viral DNA is homologous to genomic DNA present within the approximately 3593 bp Hindlll to Xhol subfragment of the Hindlll K fragment of infectious bovine rhinotracheitis virus and the downstream double-stranded infectious bovine rhinotracheitis viral DNA is homologous to genomic DNA present within the approximately 785 bp Xhol to iVdel s ' ubfragment of the Hindlll K fragment of infectious bovine rhinotracheitis virus. The invention further provides a homology vector wherein upstream double- stranded foreign DNA which comprises a promoter and downstream double-stranded foreign DNA which comprises a polyadenylation signal flank on each side double- stranded foreign DNA which encodes a detectable marker. This upstream promoter is homologous to genomic DNA present within the approximately 1191 bp Avail to PstI subfragment of the Xbal B fragment of HCMV and the downstream polyadenylation sequence is homologous to genomic DNA present within the approximately 753 bp Sail to Ndel subfragment of the BamHI #7 fragment of PRV. The DNA which encodes a detectable marker is homologous to the approximately 3347 bp Ball to BamHI fragment of pJF751. The invention further provides a homology vector wherein the upstream double-stranded infectious bovine rhinotracheitis viral DNA is homologous to genomic DNA present within the approximately 888 bp Mlul to Smal subfragment of the Hindlll K fragment of infectious bovine rhinotracheitis virus and the downstream double- stranded infectious bovine rhinotracheitis viral DNA is homologous to genomic DNA present within the approximately 785 bp Xhol to iVdel subfragment of the Hindlll K fragment of infectious bovine rhinotracheitis virus. The upstream double-stranded foreign DNA may comprise a promoter and double-stranded foreign DNA which comprise a polyadenylation signal flank on each side double-stranded foreign DNA which encodes a detectable marker. The subject invention also provides a homology vector wherein the upstream promoter is homologous to genomic DNA present within the approximately 1191 bp Avail to PstI subfragment of the Xbal B fragment of HCMV and the downstream polyadenylation signal is homologous to genomic DNA present within the approximately 753 bp Sail to -Vdel subfragment of the -BamHI #7 fragment of PRV. The DNA which encodes a detectable marker is homologous to the approximately 3347 bp Ball to BamHI fragment of pJF571. The present invention further provides a homology vector wherein the upstream double-stranded infectious bovine rhinotracheitis viral DNA is homologous to genomic DNA present within the approximately 1704 bp Smal to Smal subfragment of the Hindlll K fragment of infectious bovine rhinotracheitis virus and the downstream double-stranded infectious bovine rhinotracheitis viral DNA is homologous to genomic DNA present within the approximately 742 bp iel to Bgll subfragment of the Smal 2.5KB fragment of infectious bovine rhinotracheitis virus. The present invention further provides a homology vector wherein upstream double-stranded foreign DNA which comprises a promoter and downstream double-stranded foreign DNA which comprises a polyadenylation signal flank on each side double-stranded foreign DNA which encodes a detectable marker. The upstream promoter is homologous to genomic DNA present within the approximately 413 bp Sail to BamHI subfragment of the BamHI #10 fragment of PRV and the downstream polyadenylation signal is homologous to genomic DNA present within the approximately 754 bp -Vdel to Sail subfragment of the BamHI #7 fragment of PRV. The detectable marker is homologous to the approximately 3010 bp BamHI to PvuII fragment of pJF751. The present invention provides for a homology vector for producing a recombinant infectious bovine rhinotracheitis virus by deleting DNA which encodes a detectable marker which had been inserted into the genomic DNA of an infectious bovine rhinotracheitis virus comprising a double-stranded DNA molecule consisting essentially of double-stranded infectious bovine rhinotracheitis viral DNA homologous to the genomic DNA which flank on each side the DNA to be deleted. The subject invention further provides a homology vector wherein the upstream double-stranded infectious bovine rhinotracheitis viral DNA is homologous to genomic DNA present within the approximately 888 bp lul to Smal subfragment of the Hindlll K fragment of infectious bovine rhinotracheitis virus and the downstream double-stranded infectious bovine rhinotracheitis viral DNA is homologous to genomic DNA present within the approximately 785 bp Xhol to iVdel subfragment of the Hindlll K fragment of infectious bovine rhinotracheitis virus. In a preferred embodiment the homology vectors are designated 691-096.2, 756-11.17, and 769-73.3. The present invention also provides a method of immunizing an animal against infectious bovine rhinotracheitis virus which comprises administering to the animal an effective immunizing dose of any of the vaccines of the present invention. The animal may be a bovine. The subject invention also provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus from which at least a portion of both repeat sequences have been deleted, specifically, wherein DNA encoding one or more EcόKV restriction sites has been deleted, and wherein foreign DNA has been inserted into the DNA of the recombinant virus. The foreign DNA may be a DNA sequence which encodes bovine viral diarrhea virus glycoprotein g53. The subject invention provides an example of such a recombinant infectious bovine rhinotracheitis virus, designated S-IBR-032. The subject invention provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring infectious bovine rhinotracheitis virus from which DNA from the US2 gene, the gE glycoprotein gene and the gG glycoprotein gene have been deleted so that upon replication, the recombinant infectious bovine rhinotracheitis virus produces no gE glycoprotein and no gG glycoprotein. A Foreign DNA sequence may be inserted in place of the deleted DNA which encodes gE glycoprotein. The foreign DNA sequence that may be inserted can be a foreign DNA sequence which encodes Escherichia coli β- galactosidase. The subject invention provides an example of such a recombinant virus, designated S-IBR- 039. The subject invention further provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring IBR virus in which DNA from the US2, gE glycoprotein gene, the gG glycoprotein gene and the thymidine kinase gene has been deleted so that upon replication, the recombinant infectious bovine rhinotracheitis virus produces no gE glycoprotein, no gG glycoprotein and no thymidine kinase. The subject invention provides an example of such a recombinant virus, designated S-IBR-045. A foreign DNA sequence may be inserted in place of the deleted DNA encoding gE glycoprotein. The foreign DNA sequence may encode Escherichia coli β-galactosidase. The subject invention provides an example of such a recombinant virus, designated S-IBR-044. The foreign DNA sequence may encode bovine viral diarrhea virus g53 glycoprotein. The subject invention provides an example of such a recombinant virus, designated S-IBR- 046. The foreign DNA sequence may encode Parainfluenza virus type 3 fusion protein and Parainfluenza virus type 3 hemagglutinin protein. The subject application provides an example of such a virus, designated S-IBR- 047. The foreign DNA sequence may encode Bovine respiratory syncytial virus fusion protein, Bovine respiratory syncytial virus attachment protein and Bovine respiratory syncytial virus nucleocapsid protein. The subject invention provides an example of such a recombinant virus, designated S-IBR-049. The foreign DNA sequence may encode Pasteurella haemolytica leukotoxin and Pasteurella haemolytica iron regulated outer membrane proteins. The subject invention provides an example of such a recombinant virus, designated S-IBR-051. The subject invention also provides a recombinant infectious bovine rhinotracheitis virus comprising viral DNA from a naturally-occurring IBR virus from which DNA from the US2 gene, the gE glycoprotein gene, the gG glycoprotein gene and the thymidine kinase gene have been deleted so that upon replication, the recombinant IBR virus produces no gE glycoprotein, no gG glycoprotein and no thymidine kinase. The subject invention provides for a foreign DNA sequence inserted in place of the DNA which encodes thymidine kinase. The foreign DNA sequence may encode Escherichia coli β- glucuronidase. The present invention further provides a recombinant virus wherein a foreign DNA sequence is inserted in place of the DNA encoding gE glycoprotein. The foreign DNA sequence may encode Escherichia coli β-galactosidase. The present invention further provides an example of such a recombinant virus, designated S-IBR-043. The subject invention also provides a vaccine which comprises an effective immunizing amount of any of the recombinant viruses of the present invention and a suitable carrier. The vaccine may contain either inactivated or live recombinant virus. The present invention provides a vaccine which comprises an effective immunizing amount of recombinant virus protective against bovine respiratory disease complex and a suitable carrier. A recombinant virus may be a recombinant IBR virus and the recombinant virus can consist essentially of any or all of the recombinant viruses of the present invention. The subject invention also provides for a vaccine which comprises an effective immunizing amount of a recombinant virus and non-recombinant virus protective against bovine respiratory disease complex and a suitable carrier. The subject invention further provides a vaccine which comprises an effective immunizing amount of a recombinant IBR virus and non-recombinant virus protective against bovine respiratory disease complex and a suitable carrier. The recombinant IBR virus can consist essentially of any or all of the recombinant viruses of the subject invention. For purposes of this invention, the infectious diseases that contribute to bovine respiratory disease complex include infectious bovine rhinotracheitis, parainfluenza type 3 virus, bovine viral diarrhea virus, bovine respiratory syncytial virus and Pasteurella haemolytica. For purposes of the present invention, non-recombinant viruses can include, but are not limited to, conventionally derived viruses which include killed virus, inactivated bacterins, and modified live viruses. The subject invention further provides for a method of immunizing an animal against infectious bovine rhinotracheitis which comprises administering to the animal an immunizing dose of any of the vaccines of the present invention. The subject invention further provides a method of immunizing an animal against Parainfluenza type 3 which comprises administering to the animal an immunizing dose of the vaccine of the present invention that contains the IBR virus encoding antigens for Parainfluenza type 3 virus. The subject invention further provides a method of immunizing an animal against bovine viral diarrhea which comprises administering to the animal an immunizing dose of the vaccine of the present invention that contains the IBR virus encoding antigens for bovine viral diarrhea virus. The subject invention further provides a method of immunizing an animal against bovine respiratory syncytial virus disease which comprises administering to the animal an immunizing dose of the vaccine of the present invention that contains the IBR virus encoding antigens for bovine respiratory syncytial virus. The subject invention further provides for a method of immunizing an animal against Pneumonic pasteurellosis which comprises administering to the animal an immunizing dose of the vaccine of the present invention that contains the IBR virus encoding antigens for Pasteurella haemolytica. The invention further provides a method of immunizing an animal against bovine respiratory disease complex which comprises administering to an animal an immunizing dose of the vaccine containing the recombinant IBR viruses of the present invention or the recombinant viruses of the present invention and non- recombinant viruses. For purposes of this invention, the animal may be a bovine. The invention further provides a method for distinguishing an animal vaccinated with a vaccine which comprises an effective immunizing amount of a recombinant virus of the present invention from an animal infected with a naturally- occurring IBR virus-,which comprises analyzing a sample of a body fluid from the animal for the presence of gE glycoprotein of IBR virus and at least one other antigen normally expressed in an animal infected by a naturally-occurring IBR virus, identifying antigens which are present in the body fluid and determining whether gE glycoprotein is present in the body fluid, the presence of antigens which are normally expressed in an animal by a naturally-occurring IBR virus and the absence of gE glycoprotein in the body fluid being indicative of an animal vaccinated with the vaccine and not infected with a naturally-occurring IBR virus. The present invention also provides a vaccine which comprises an effective immunizing amount of the recombinant infectious bovine rhinotracheitis virus S- IBR-052 and a suitable carrier. The vaccine may contain either inactivated or live infectious bovine rhinotracheitis S-IBR-052. In general, the vaccine of this invention contains an effective immunizing amount of S-IBR-052 virus from about 10 3 to 10 8 PFU/dose. Preferably, the effective immunizing amount is from about 10 4 to 10 7 or 10 4 to 10 6 PFU/dose for the live vaccine. Preferably, the live vaccine is created by taking tissue culture fluids and adding stabilizing agents such as stabilized, hydrolyzed proteins. Preferably, the inactivated vaccine uses tissue culture fluids directly after inactivation of the virus. The present invention also provides a method of immunizing an animal, particularly a bovine, against disease caused by infectious bovine rhinotracheitis virus which comprises administering to the animal an effective immunizing dose of the vaccine comprising S- IBR-052. The present invention provides a method of enhancing an immune response which comprises administering to a subject an effective dose of a recombinant infectious bovine rhinotracheitis virus and a suitable carrier. The present invention also provides a method for distinguishing an animal vaccinated with the infectious bovine rhinotracheitis virus S-IBR-052 from an animal infected with naturally-occurring infectious bovine rhinotracheitis virus. This method comprises analyzing a sample of a body fluid from the animal for the presence of IBRV gG or gE and at least one other antigen which is normally expressed in an animal infected by a naturally-occurring infectious bovine rhinotracheitis virus and determining whether the antigen and gG or gE are present in the body fluid. The presence of the antigen and the absence of gG or gE in the body fluid is indicative of an animal vaccinated with the vaccine and not infected with a naturally- occurring infectious bovine rhinotracheitis virus. The presence of the antigen and of gG or gE in the body fluid may be determined by various methods, for example, by detecting in the body fluid antibodies specific for the antigen and for gG or gE. Methods for constructing, selecting and purifying infectious bovine rhinotracheitis viruses, including S- IBR-052, are detailed in the Materials and Methods section which follows. Furthermore, Example 25 of the specification contains detailed characterization of recombinant infectious bovine rhinotracheitis virus S- IBR-052. EXPERIMENTAL DETAILS Materials and Methods PREPARATION OF IBR VIRUS STOCK SAMPLES. IBR virus stock samples were prepared by infecting MDBK cells at a multiplicity of infection of 0.01 PFU/cell in Dulbecco's Modified Eagle Medium (DMEM) containing 2 mM glutamine, 100 units/ml penicillin, 100 units/ml streptomycin (these components were obtained from Irvine Scientific or an equivalent supplier, and hereafter are referred to as complete DME medium) plus 1% fetal bovine serum. After cytopathic effect was complete, the medium and cells were harvested and the cells were pelleted at 3000 rpm for 5 minutes in a clinical centrifuge. Cells were resuspended in 1/10 the original volume of medium, and an equal volume of skim milk (9% skim milk powder in H 2 0 weight/volume) was added. The virus sample was frozen at -70°C. The titers were usually about 10 8 PFU/ml. PREPARATION OF HERPESVIRUS DNA. For herpesvirus DNA preparation, a confluent monolayer of cells (MDBK for IBR virus or Vero for PRV) in a 25 cm 2 flask or 60 mm petri dish was infected with 100 μl of virus sample. After overnight incubation, or when the cells were showing 100% cytopathic effect, the cells were scraped into the medium. The cells and medium were centrifuged at 3000 rpm for 5 minutes in a clinical centrifuge. The medium was decanted, and the cell pellet was gently resuspended in 0.5 ml of solution containing 0.5% NONIDET P-40 ™ (NP-40, purchased from Sigma Chemical Co., St. Louis, MO) . The sample was incubated at room temperature for 10 minutes. Ten μl of a stock solution of RNase A (Sigma) was added (stock was 10 mg/ml, boiled for 10 minutes to inactivate DNAse) . The sample was centrifuged to pellet nuclei. The DNA pellet was removed with a pasteur pipette or wooden stick and discarded. The supernatant fluid was decanted into a 1.5 ml Eppendorf tube containing 25 μl of 20% sodium dodecyl sulfate (Sigma) and 25 μl proteinase-K (10 mg/ml; Boehringer Mannheim) . The sample was mixed and incubated at 37°C for 30-60 minutes. An equal volume of water-saturated phenol was added and the sample was mixed briefly. The sample was centrifuged in an Eppendorf minifuge for 5 minutes at full' speed. The upper aqueous phase was removed to a new Eppendorf tube, and two volumes of absolute ethanol were added and the tube put at -20°C for 30 minutes to precipitate nucleic acid. The sample was centrifuged in an Eppendorf minifuge for 5 minutes. The supernatant was decanted, and the pellet was washed with -300 μl of 80% ethanol, followed by centrifugation in an Eppendorf minifuge for 5 minutes. The supernatant was decanted, and the pellet was air dried and rehydrated in -16 μl H 2 0. For the preparation of larger amounts of DNA, the procedure was scaled up to start with a 850 cm 2 roller bottle of MDBK cells. The DNA was stored in 0.01 M tris pH 7.5, 1 mM EDTA at 4°C. PREPARATION OF HERPESVIRUS CELL LYSATES. For cell lysate preparation, serum free medium was used. A confluent monolayer of cells (MDBK for IBR virus or Vero for PRV) in a 25 cm 2 flask or a 60 mm petri dish was infected with 100 μl of virus sample. After cytopathic effect was complete, the medium and cells were harvested and the cells were pelleted at 3000 rpm for 5 minutes in a clinical centrifuge. For media samples medium was concentrated approximately 10-fold by filtration with a centricon-10 microconcentrator (Amicon) . For cell samples the cell pellet was resuspended in 250 μl of disruption buffer (2% sodium dodecyl sulfate, 2% β-mercaptoethanol) . The samples were sonicated for 30 seconds on ice and stored at - 20°C. WESTERN BLOTTING PROCEDURE. Samples of lysates, controls and protein standards were run on a polyacrylamide gel according to the procedure of Laemmli (2) . After gel electrophoresis the proteins were transferred according to Sambrook (14) . The primary antibody was a mouse hyper-immune serum raised against chemically-synthesized gG peptides (amino acids 232-252 and 267-287) linked to keyhole limpet hemocyanin. The secondary antibody was a goat anti- mouse alkaline phosphatase coupled antibody. MOLECULAR BIOLOGICAL TECHNIQUES. Techniques for the manipulation of bacteria and DNA, including such procedures as digestion with restriction endonucleases, gel electrophoresis, extraction of DNA from gels, ligation, phosphorylation with kinase, treatment with phosphatase, growth of bacterial cultures, transformation of bacteria with DNA, and other molecular biological methods are described by Maniatis (6) . Except as noted, these were used with minor variation. LIGATION. DNA was joined together by the action of the enzyme T4 DNA ligase (BRL) . Ligation reactions contained various amounts of DNA (from 0.2 to 20μg) , 20mM Tris pH 7.5, lOmM MgCl 2 , lOmM dithiothreitol (DTT) , 200 μM ATP and 20 units T4 DNA ligase in 10-20 μl final reaction volume. The ligation proceeded for 3-16 hours at 15°C. DNA SEQUENCING. Sequencing was performed using the BRL Sequenase Kit and 35 S-dATP (NEN) . Reactions using both the dGTP mixes and the dITP mixes were performed to clarify areas of compression. Alternatively, compressed areas were resolved on formamide gels. Templates were double-stranded plasmid subclones or single stranded M13 subclones, and primers were either made to the vector just outside the insert to be sequenced, or to previously obtained sequence. Sequence obtained was assembled and compared using Dnastar software. Manipulation and comparison of sequences obtained was performed with Superclone and Supersee programs from Coral Software. SOUTHERN BLOTTING OF DNA. The general procedure for Southern blotting was taken from Maniatis (6) . DNA was blotted to nitrocellulose filters and hybridized to appropriate, labeled DNA probes. Probes for southern blots were prepared using either the Nonradioactive DNA Labeling and Detection Kit of Boehringer Mannheim or the nick translation kit of Bethesda Research Laboratories (BRL) . In both cases the manufacturers' recommended procedures were followed. DNA TRANSFECTION FOR GENERATING RECOMBINANT VIRUS. The method is based upon the calcium phosphate procedure of Graham and Van der Eb (24) with the following modifications. Virus and/or plasmid DNA were diluted to 298 μl in 0.01 M Tris pH 7.5, lmM EDTA. Forty μl 2M CaCl 2 was added followed by an equal volume of 2X HEPES buffered saline (lOg N-2-hydroxyethyl piperazine N'-2- ethanesulfonic acid (HEPES), 16g NaCl, 0.74g KC1, 0.25g Na 2 HP0 4 •2H 2 0, 2g dextrose per liter H 2 0 and buffered with NaOH to pH 7.4) . The mixture was then incubated on ice for 10 minutes, and then added dropwise to an 80% confluent monolayer of MDBK or rabbit skin (RS) cells growing in a 60 mm petri dish under 5 ml of medium (DME plus 2% fetal bovine serum) . The cells were incubated 4 hours at 37°C in a humidified incubator containing 5% C0 2 . The cells were then washed with three 5 ml aliquots of 1XPBS (1.15g Na 2 HP0 4 , 0.2g KH 2 P0 4 , 0.8g NaCl, 0.2g KCl per liter H 2 0) , and fed with 5 ml of medium (DME plus 2% fetal bovine serum) . The cells were incubated at 37°C as above for 3-7 days until cytopathic effect from the virus was 50- 100%. Virus was harvested as described above for the preparation of virus stocks. This stock was referred to as a transfection stock and was subsequently screened for recombinant virus by the BLUOGAL ™ SCREEN FOR RECOMBINANT IBR VIRUS. HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. This method relies upon the homologous recombination between herpesvirus DNA and plasmid homology vector DNA which occurs in tissue culture cells co-transfected with these elements. From 0.1-1.0 μg of plasmid DNA containing foreign DNA flanked by appropriate herpesvirus cloned sequences (the homology vector) were mixed with approximately 0.3 μg of intact herpesvirus DNA. The DNAs were diluted to 298 μl in 0.01 M Tris pH 7.5, ImM EDTA and transfected into MDBK cells according to the DNA TRANSFECTION FOR GENERATING RECOMBINANT VIRUS (see above) . DIRECT LIGATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. Rather than using homology vectors and relying upon homologous recombination to generate recombinant virus, the technique of direct ligation to engineer herpesviruses was also developed. In this instance, a cloned foreign gene did not require flanking herpesvirus DNA sequences but only required that it have restriction sites available to cut out the foreign gene fragment from the plasmid vector. A compatible restriction enzyme was used to cut herpesvirus DNA. A requirement of the technique was that the restriction enzyme used to cut the herpesvirus DNA must cut at a limited number of sites. Xbal, which cuts IBR virus DNA in one place was used. BcoRV which cuts IBR virus DNA in two places was used. For PRV Xbal and Hindlll, both of which cut in two places was used. Restriction sites previously introduced into herpesviruses by other methods may also be used. The herpesvirus DNA was mixed with a 30-fold molar excess of plasmid DNA (typically 5μg of virus DNA to lOμg of plasmid DNA) , and the mixture was cut with the appropriate restriction enzyme. The DNA mixture was phenol extracted and ethanol precipitated to remove restriction enzymes, and ligated together according to the ligation procedure detailed above. The ligated DNA mixture was then resuspended in 298 μl 0.01 M Tris pH 7.5, ImM EDTA and transfected into cells (MDBK or RS for IBR virus and Vero for PRV) according to the DNA TRANSFECTION FOR GENERATING RECOMBINANT VIRUS (see above) . The direct ligation procedure may also be used to delete DNA from herpesviruses. Non-essential DNA which is flanked by appropriate restriction enzyme sites may be deleted by digesting the virus DNA with such enzymes and religation. The frequency of engineered viruses generated by the direct ligation procedure is high enough that screening can be accomplished by restriction enzyme analysis of randomly picked plaques from the transfection stock. BLUOGAL ™ SCREEN FOR RECOMBINANT HERPESVIRUS. When the E. coli β-galactosidase (lacZ) marker gene was incorporated into a recombinant virus the plaques containing recombinants were visualized by a simple assay. The chemical BLUOGAL ™ (GIBCO-Bethesda Research Labs) was incorporated (200 μg/ml) into the agarose overlay during the plaque assay, and plaques that expressed active β-galactosidase turned blue. The blue plaques were then picked onto fresh cells (MDBK for IBR virus and Vero for PRV) and purified by further blue plaque isolations. In recombinant virus strategies in which the E. coli β-galactosidase marker gene is re oved, the assay involves plaque purifying white plaques from a background of parental blue plaques. In both cases viruses were typically purified with three rounds of plaque purification. SCREEN FOR RECOMBINANT HERPESVIRUS EXPRESSING ENZYMATIC MARKER GENES. When the E. coli β-galactosidase (lacZ) or β-glucuronidase (uidA) marker gene was incorporated into a recombinant virus the plaques containing recombinants were visualized by a simple assay. The enzymatic substrate was incorporated (300 μg/ml) into the agarose overlay during the plaque assay. For the lacZ marker gene the substrate BLUOGAL ™ (halogenated indolyl-β-D-galactosidase, Bethesda Research Labs) was used. For the uidA marker gene the substrate X-Glucuro Chx (5-bromo-4-chloro-3-indolyl-β-D-glucuronic acid Cyclohexylammonium salt, Biosynth AG) was used. Plaques that expressed active marker enzyme turned blue. The blue plaques were then picked onto fresh cells and purified by further blue plaque isolation. In recombinant virus strategies in which the enzymatic marker gene is removed the assay involves plaque purifying white plaques from a background of parental blue plaques. In both cases viruses were typically purified with three rounds of plaque purification. ANTIBODY SCREEN FOR RECOMBINANT HERPESVIRUS. A third method for screening the recombinant virus stock was to look directly for the expression of the foreign gene with antibodies. Herpesvirus plaques were spotted and picked by inserting a toothpick through the agarose above the plaque and scraping the plaque area on the dish. Viruses were then rinsed from the toothpick by inserting the toothpick into a well of a 96-well micro- titer dish (Falcon Plastics) containing a confluent monolayer of tissue culture cells that had been washed 3 times in DME medium without serum. It was important for the virus to grow without serum at this stage to allow the immunological procedure to work. After cytopathic effect was complete, the plates were put at -70°C to freeze and lyse the cells. The medium was thawed, and the freeze/thaw procedure was repeated a second time. Then 50-100 microliters of medium were removed from each well and filtered under vacuum through a nitrocellulose membrane (S&S BA85) using a DotBlot- apparatus (BRL) . The filter blots were soaked in a blocking solution of 0.01 M Tris pH 7.5, 0.1 M NaCl, 3% bovine serum albumin at room temperature for two hours with shaking. The filter blots were then placed in a sealable bag (Sears SEAL-A-MEAL ™ or equivalent) , and 10 mis of the blocking solution that contained 10 microliters of antibody specific for the foreign protein were added. After overnight incubation at room temperature with shaking, the blot was washed 3 times with 100 mis 0.01 M Tris, pH 7.5, 0.1 M NaCl, 0.05% Tween 20 detergent (Sigma) . The blot was put in another sealable bag and 10 mis blocking solution containing 10 ε counts per minute of 125 I-protein A (New England Nuclear) were added. After allowing the protein A to bind to the antibody for 2 hours at room temperature with shaking, the blot was washed as above, dried, and overlayed with an X-ray film and an intensifying screen (Dupont) and autoradiographed for 1-3 days at -70°C. The film was developed by standard procedures. Virus from the positive wells which contained the recombinant virus was further purified. SELECTION OF G418 RESISTANT IBR VIRUS. The antibiotic G418 (GIBCO) has a wide range of inhibitory activity on protein synthesis. However, recombinant viruses expressing the aminoglycosidase 3' -phosphotransferase, encoded by the NEO gene of the transposable element Tn5, are resistant to G418. The transfection stocks of recombinant viruses were grown on MDBK cells in the presence of 500 μg/ml G418 in complete DME medium plus 1% fetal bovine serum. After one or two days at 37°C, plaques from the dishes inoculated with the highest dilution of virus were picked for virus stocks. The selection was repeated a second or third time. The virus stocks generated from the G418 selection were tested for NEO gene insertion by the SOUTHERN BLOTTING OF DNA hybridization procedure described above. CONSTRUCTION OF DELETION VIRUSES. The strategy used to construct deletion viruses involved the use of either homologous recombination and/or direct ligation techniques. Initially a virus was constructed via homologous recombination, in which the DNA to be deleted was replaced with a marker gene such as E. coli β-galactosidase (lacZ) or β-glucuronidase (uidA) . A second virus was then constructed in which the marker gene was deleted either by homologous recombination or via direct ligation. The advantage of this strategy is that both viruses may be purified by the SCREEN FOR RECOMBINANT HERPESVIRUS EXPRESSING ENZYMATIC MARKER GENES. The first virus is purified by picking blue plaques from a white plaque background, the second virus is purified by picking white plaques from a blue plaque background. Several homology vectors were constructed for the purpose of deleting the gG, gE and Tk gene coding regions. A detailed description of these homology vectors follows. IBR VIRUS gE PLASMID. A plasmid may be generated for the purpose of constructing a recombinant cloning vector which expresses the IBR virus glycoprotein E (gE) . This plasmid may be used to insert the IBR virus gE gene into S-PRV-002 (U.S. Patent No. 4,877,737). The plasmid will contain the gE gene flanked by Xbal restriction sites. When this plasmid is used with S- PRV-002 and the restriction enzyme Xbal according to the DIRECT LIGATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS the resulting recombinant will express the IBR virus gE. A detailed description of the plasmid is given in Figures 17A-17E. It may be constructed, utilizing standard recombinant DNA techniques (6) , by joining restriction fragments from the following sources. The plasmid vector is derived from an approximately 2999 base pair Xbal to Xbal restriction fragment of a hybrid cloning vector derived from pSP64 and pSP65 (Promega) . The hybrid cloning vector was constructed by joining an approximately 1369 base pair Pvul to Smal fragment from pSP64 with the approximately 1652 base pair Pvul to Smal fragment from pSP65. Fragment 1 is an approximately 3647 base pair .Ndel to Hindlll restriction sub-fragment of the IBR virus Hindlll restriction fragment K (7) . Fragment 2 is an approximately 832 base pair Hindlll to Sad restriction sub-fragment of an IBR virus 2400 base pair Smal restriction fragment. This Smal fragment has been cloned into the Smal site of the plasmid pSP64 (Promega). This plasmid is designated PSY1645. PSY1645 was deposited on July 16, 1991 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. 68650. Note that the lacZ marker gene is flanked by Xbal sites located at Junction B and Junction E in this plasmid permitting the marker gene to be cut out with Xbal. PURIFICATION OF IBR VIRUS gG. gG was purified from the tissue culture medium of infected MDBK cells. Confluent MDBK cells in serum-free medium were infected at a multiplicity of infection equal to 5, with wild- type, Cooper strain of IBR virus. The cells and media were harvested at approximately twenty-two hours after infection, when the cells showed considerable cytopathic effect and the fluids were centrifuged at 5000 rpm for 15 minutes. The supernatant fluid was concentrated approximately 10-fold by ultrafiltration through an Amicon ym-30 membrane, and dialyzed against lOmM NaP0 4 pH 7.2. The dialysate was treated for 20 minutes at 0°C with 70% perchloric acid to a final concentration of 0.2M perchloric acid, then centrifuged at 12,000 rpm for 20 minutes. The supernatant fluid was then dialyzed against 20mM Tris pH 9.5. The acid-soluble proteins were separated by column chromatography on a DEAE-Sephacel anion exchange column using a liner gradient elution : 0 to 100% A to B where A = 20mM Tris pH 9.5 and B = 20mM Tris pH 9.5/800 mM NaCl. The gG eluted at approximately 35-40% B. Peak fractions were assayed by Western blot using anti gG peptide sera. Reactive fractions were ' combined and dialyzed against 5 mM Tris pH 7.0. The sample was then concentrated 10-fold by lyophilization and stored at -20°C. ELISA ASSAY. A standard enzyme-linked immunosorbent assay (ELISA) protocol was used to determine the immune status of cattle following vaccination and challenge. A purified gG antigen solution (100 μl at 1 ng/μl in PBS) was allowed to absorb to the wells of microtiter dishes for 18 hours at 4°C. The coated wells were rinsed one time with PBS. Wells were blocked by adding 250 μl of PBS containing 1% BSA (Sigma) and incubating 1 hour at 37°C. The blocked wells were rinsed one time with PBS containing 0.02% Tween 20. 50 μl of test serum (previously diluted 1:2 in PBS containing 1% BSA) were added to the wells and incubated 1 hour at 37°C. The antiserum was removed and the wells were washed 3 times with PBS containing 0.02% Tween 20. 50 μl of a solution containing anti-bovine IgG coupled to horseradish peroxidase (diluted 1:500 in PBS containing 1% BSA, Kirkegaard and Perry Laboratories, Inc.) was added to visualize the wells containing antibody against the specific antigen. The solution was incubated 1 hour at 37°C, then removed and the wells were washed 3 times with PBS containing 0.02% Tween 20. 100 μl of substrate solution (ATBS, Kirkegaard and Perry Laboratories, Inc.) were added to each well and color was allowed to develop for 15 minutes. The reaction was terminated by addition of 0.1M oxalic acid. The color was read at absorbance 410nm on an automatic plate reader. PROCEDURE FOR GENERATING MONOCLONAL ANTIBODIES. To produce monoclonal antibodies, 8 to 10 week old BALB/c female mice were vaccinated intraperitoneally seven times at two to four week intervals with 10 7 PFU of S- PRV-160. Three weeks after the last vaccination, mice were injected intraperitoneally with 40 μg of purified gG. Spleens were removed from the mice three days after the last antigen dose. Splenocytes were fused with mouse NSl/Ag4 plasmacytoma cells by the procedure modified from Oi and Herzenberg, (39) . Splenocytes and plasmacytoma cells were pelleted together by centrifugation at 300 x g for 10 minutes. One ml of a 50% solution of polyethylene glycol (m.w. 1300-1600) was added to the cell pellet with stirring over one minute. Dulbecco's modified Eagles's medium (5 ml) was added to the cells over three minutes. Cells were pelleted by centrifugation at 300 x g for 10 minutes and resuspended in medium with 10% fetal bovine serum and containing 100 μM hypoxanthine, 0.4 μM aminopterin and 16 μM thymidine (HAT) . Cells (100 μl) were added to the wells of eight to ten 96-well tissue culture plates containing 100 μl of normal spleen feeder layer cells and incubated at 37°C. Cells were fed with fresh HAT medium every three to four days. Hybridoma culture supernatants were tested by the ELISA ASSAY in 96-well microtiter plates coated with 100 ng of purified gG. Supernatants from reactive hybridomas were further analyzed by black-plaque assay and by Western Blot. Selected hybridomas were cloned twice by limiting dilution. Ascetic fluid was produced by intraperitoneal injection of 5 X 10 6 hybridoma cells into pristane-treated BALB/c mice. METHOD FOR CDNA CLONING BOVINE ROTAVIRUS g38 GENE. The Calf Nebraska strain of bovine rotavirus (USDA) was propagated on MA-104 cells (Rhesus monkey kidney cells from MA Bioproducts) . Confluent monolayers were infected at a multiplicity of infection of greater than 10 in DMEM containing 5 micrograms/ml trypsin. Cells were incubated with virus for 48 hours or until a cytopathic effect was obtained. Media and cell debris were collected and centrifuged at 10,000 x g for 20 minutes at 4°C. The supernatant containing the rotavirus was then centrifuged at 10,000 x g in a preparative Beckman Ti45 rotor at 4°C. Virus pellets were resuspended in SM medium (50 mM Tris-HCl pH 7.5, 100 mM KC1, 10 mM MgCl 2 ) and homogenized lightly in a Dounce-type homogenizer. The resuspended virus was centrifuged at 10,000 x g for 10 minutes then loaded onto 25-50% CsCl gradients in SM buffer. Gradients were centrifuged at 100,000 x g for 4 hours at 20°C. The two blue-white bands representing intact virions and cores of rotavirus were collected, diluted, and the CsCl gradient procedure was repeated a second time. Virus obtained from the second gradient was dialyzed overnight against SM buffer at 4°C. Dialyzed bovine rotavirus was twice extracted with an equal volume of SDS/phenol, then twice more with chloroform: isoamylalcohol (24:1). The double stranded RNA was precipitated with ethanol in the presence of 0.2 M sodium acetate, centrifuged and resuspended in water. The yield was typically 100 micrograms from 1,000 cm 2 of infected cells. 160 micrograms of double-stranded bovine rotavirus RNA obtained from the above procedure was mixed with one microgram each of two synthetic oligonucleotide primers in a volume of 160 microliter (sequences of primers were: 5' -GGGAATTCTGCAGGTCACATCATACAATTCTAATCTAAG-3' (SEQ ID NO: 82) and 5' -GGGAATTCTGCAGGCTTTAAAAGAGAGAATTTCCGTTTGGCTA-3' (SEQ ID NO: 83) derived from the published sequence of bovine rotavirus (40) . The RNA-primer mixture was boiled for 3 minutes in a water bath then chilled on ice. Additions of 25 microliters of 1 M Tris-HCl pH 8.3, 35 microliters of 1 M KC1, 10 microliters of 0.25 M MgCl 2 , 7 microliters of 0.7 M 2-mercaptoethanol, 7 microliters of 20 mM dNTP's, and 6 microliters of reverse transcriptase (100 units) were made sequentially. The reaction was incubated at 42°C for 1.5 hours then 10 microliters of 0.5 M EDTA pH 8.0 was added and the solution was extracted once with chloroform:phenol (1:1) . The aqueous layer was removed and to it 250 microliters of 4 M ammonium acetate and 1.0 ml of 95% ethanol was added, the mixture was frozen in dry ice and centrifuged in the cold. The resulting pellet was resuspended in 100 microliters of 10 mM Tris-HCl pH 7.5 and the ammonium acetate precipitation procedure was repeated. The pellet was resuspended in 100 microliters of 0.3 M KOH and incubated at room temperature overnight, then at 37°C for 2 hours. The solution was brought to neutral pH by addition of 10 microliters of 3.0 M HCl and 25 microliters of 1.0 M Tris-HCl pH 7.5 The resulting single-stranded cDNA was then precipitated two times by the above-described ammonium acetate-ethanol procedure. The pellet obtained was resuspended in 50 microliters of 10 mM Tris-HCl pH 7.5, 100 mM NaCl, 1 mM EDTA, boiled in a water bath for 2 minutes, then incubated at 59°C for 16 hours. The solution was lyophilized to a volume of 15 microliters and the resulting double-stranded cDNA was run on a 1.0% agarose gel (Sigma agarose Type II) . The ethidium bromide-stained DNA migrating at 1,000-1,100 base pair length was excised from the gel and electroeluted in a CBS electroeluter device. The solution was lyophilized, and the cDNA was resuspended in 25 microliters of water. To this solution was added 2 microliters of 1.0 M Tris-HCl pH 7.5, 2 microliters of 1 M KC1, 1 microliter of 0.25 M MgCi-, 1 microliter of 20 mM dNTP's and 5 units of E. coli DNA polymerase I. The reaction was incubated at room temperature for 15 minutes, then chloroform/phenol extracted and ammonium acetate-ethanol precipitated as described above. The resulting cDNA was tailed with dCTP using terminal deoxynucleotide transferase (BRL buffer and enzyme used) . The reaction was stopped with 2 microliters of 0.5 M EDTA, chloroform/phenol extracted and precipitated with sodium acetate in the presence of 10 micrograms of carrier tRNA. The resuspended cDNA was mixed with 200 ng of dGMP-tailed Pst I cut pBR322 (BRL catalog #5355SA) in 200 microliters of 10 mM Tris- HCl pH 7.5, 100 mM NaCl, 1 mM EDTA, heated to 65°C for 5 minutes, then 57°C for 2 hours. The annealed cDNA- vector pBR322 was transformed onto E. coli DH-1 cells prepared for high efficiency transformation. Colonies that showed sensitivity to ampicillin and tetracycline resistance were grown and DNA was prepared and cut with Pst I to determine the size of the cDNA insert. Several clones having Pst I inserts of 1,050-1,100 base pairs were analyzed and found to have identical restriction enzyme digest patterns. For one of these clones, the 1,100 base pair PstI insert was subcloned into a M13 phage sequencing vector. Part of the DNA sequence of this clone was determined and was found to be identical to the published sequence (40) . cDNA CLONING. cDNA cloning refers to the methods used to convert RNA molecules into DNA molecules following state of the art procedures. Applicants' methods are described in Gubler and Hoffman (23) . Bethesda Research Laboratories (Gaithersburg, MD) have designed a cDNA Cloning Kit that is very similar to the procedures used by applicants and contains the best set of reagents and protocols to duplicate the results. For cloning virus mRNA species, a host cell line sensitive to infection by the virus was infected at 5- 10 plaque forming units per cell. When cytopathic effect was evident, but before total destruction, the medium was removed and the cells were lysed in 10 mis lysis buffer (4 M guanidine thiocyanate, 0.1% antifoam A, 25 mM sodium citrate pH 7.0, 0.5% N-lauroyl sarcosine, 0.1 M beta-mercaptoethanol) . The cell lysate was poured into a sterilized Dounce homogenizer and homogenized on ice 8-10 times until the solution was homogenous. For RNA purification, 8 mis of cell lysate were gently layered over 3.5 mis of CsCl solution (5.7 M CsCl, 25 mM sodium citrate pH 7.0) in a Beckman SW41 centrifuge tube. The samples were centrifuged for 18 hours at 20°C at 36,000 rpm in a Beckman SW41 rotor. The tubes were put on ice and the supernatants from the tubes were carefully removed by aspiration to leave the RNA pellet undisturbed. The pellet was resuspended in 400 microliters glass distilled water, and 2.6 mis of guanidine solution (7.5 M guanidine-HCl, 25 M sodium citrate pH 7.0, 5 mM dithiothreitol) were added. Then 0.37 volumes of 1 M acetic acid were added, followed by 0.75 volumes of cold ethanol and the sample was put at - 20°C for 18 hours to precipitate RNA. The precipitate was collected by centrifugation in a Sorvall centrifuge for 10 min at 4°C at 10,000 rpm in an SS34 rotor. The pellet was dissolved in 1.0 ml distilled water, recentrifuged at 13,000 rpm, and the supernatant saved. RNA was reextracted from the pellet 2 more times as above with 0.5 ml distilled water, and the supernatants were pooled. A 0.1 volume of 2 M potassium acetate solution was added to the sample followed by 2 volumes of cold ethanol and the sample was put at -20°C for 18 hours. The precipitated RNA was collected by centrifugation in the SS34 rotor at 4°C for 10 minutes at 10,000 rpm. The pellet was dissolved in 1 ml distilled water and the concentration taken by absorption at A260/280. The RNA was stored at -70°C. mRNA containing polyadenylate tails (poly-A) was selected using oligo-dT cellulose (Pharmacia #27 5543- 0) . Three milligrams of total RNA was boiled and chilled and applied to a 100 mg oligo-dT cellulose column in binding buffer (0.1 M Tris pH 7.5, 0.5 M LiCl, 5 mM EDTA pH 8.0, 0.1% lithium dodecyl sulfate) . The retained poly-A + RNA was eluted from the column with elution buffer (5 mM Tris pH 7.5, 1 mM EDTA pH 8.0, 0.1% sodium dodecyl sulfate) . This mRNA was reapplied to an oligo-dT column in binding buffer and eluted again in elution buffer. The sample was precipitated with 200 mM sodium acetate and 2 volumes cold ethanol at -20°C for 18 hours. The RNA was resuspended in 50 microliters distilled water. Ten micrograms poly-A + RNA was denatured in 20 mM methyl mercury hydroxide for 6 minutes at 22°C. Beta- mercaptoethanol was added to 75 mM and the sample was incubated for 5 min at 22°C. The reaction mixture for first strand cDNA synthesis in 0.25 ml contained 1 microgram oligo-dT primer (P-L Biochemicals) or 1 microgram synthetic primer, 28 units placental ribonuclease inhibitor (Bethesda Research Labs #5518SA) , 100 mM Tris pH 8.3, 140 mM KCl, 10 mM MgCl 2 , 0.8 mM dATP, dCTP, dGTP, and dTTP (Pharmacia), 100 microcuries 32 P-labelled dCTP (New England Nuclear #NEG- 013H) , and 180 units AMV reverse transcriptase (Molecular Genetics Resources #MG 101) . The reaction was incubated at 42°C for 90 minutes, and then was terminated with 20 mM EDTA pH 8.0. The sample was extracted with an equal volume of phenol/chloroform (1:1) and precipitated with 2 M ammonium acetate and 2 volumes of cold ethanol -20°C for 3 hours. After precipitation and centrifugation, the pellet was dissolved in 100 microliters distilled water. The sample was loaded onto a 15 ml G-100 Sephadex column (Pharmacia) in buffer (100 mM Tris pH 7.5, 1 mM EDTA pH 8.90, 100 mM NaCl) . The leading edge of the eluted DNA fractions were pooled, and DNA was concentrated by lyophilization until the volume was about 100 microliters, then the DNA was precipitated with ammonium acetate plus ethanol as above. The entire first strand sample was used for second strand reaction which follow the Gubler and Hoffman (23) method except that 50 micrograms/ml dNTP's, 5.4 units DNA polymerase I (Boehringer Mannheim #642-711) , and 100 units/ml E. coli DNA ligase (New England Biolabs #205) in a total volume of 50 microliters were used. After second strand synthesis, the cDNA was phenol/chloroform extracted and precipitated. The DNA was resuspended in 10 microliters distilled water, treated with 1 microgram RNase A for 10 minutes at 22°C, and electrophoresed through a 1% agarose gel (Sigma Type II agarose) in 40 mM Tris-acetate buffer pH 6.85. The gel was stained with ethidium bromide, and DNA in the expected size range was excised from the gel and electroeluted in 8 mM Tris-acetate pH 6.85. Electroeluted DNA was lyophilized to about 100 microliters, and precipitated with ammonium acetate and ethanol as above. The DNA was resuspended in 20 microliters water. Oligo-dC tails were added to the DNA to facilitate cloning. The reaction contained the DNA, 100 mM potassium cacodylate pH 7.2, 0.2 mM dithiothreitol, 2 mM CaCl 2 , 80 micromoles dCTP, and 25 units terminal deoxynucleotidyl transferase (Molecular Genetic Resources #S1001) in 50 microliters. After 30 minutes at 37°C, the reaction was terminated with 10 mM EDTA, and the sample was phenol/chloroform extracted and precipitated as above. The dC-tailed DNA sample was annealed to 200 ng plasmid vector pBR322 that contained oligo-dG tails (Bethesda Research Labs #5355 SA/SB) in 200 microliters of 0.01 M Tris pH 7.5, 0.1 M NaCl, 1 mM EDTA pH 8.0 at 65°C for 2 minutes and then 57°C for 2 hours. Fresh competent E. coli DH-1 cells were prepared and transformed as described by Hanahan (41) using half the annealed cDNA sample in twenty 200 microliter aliquots of cells. Transformed cells were plated on L-broth agar plates plus 10 micrograms/ml tetracycline. Colonies were screened for the presence of inserts into the ampicillin gene using Ampscreen (Bethesda Research Labs #5537 UA) , and the positive colonies were picked for analysis. POLYMERASE FILL-IN REACTION. DNA was resuspended in buffer containing 50 mM Tris pH 7.4, 50 mM KCl, 5 mM MgCl 2 , and 400 micromolar each of the four deoxynucleotides. Ten units of Klenow DNA polymerase (BRL) were added and the reaction was allowed to proceed for 15 minutes at room temperature. The DNA was then phenol extracted and ethanol precipitated as above. CLONING OF BOVINE VIRAL DIARRHEA VIRUS g53 and g48 GENES. The bovine viral diarrhea (BVDV) g53 gene was cloned essentially as described earlier (see cDNA CLONING) using the random priming method (6) . Viral RNA prepared from BVDV Singer strain grown in MADIN- DARBY bovine kidney (MDBK) cells was converted to cDNA using the random priming method. The cDNA was used for second strand reaction (23) and the resulting double stranded DNA was used cloned as described in the cDNA CLONING procedure. From this procedure a series of clones were obtained that comprised parts of the genome of BVDV. The location of the gene for g53 gene has been published [ 66 ) and this sequence information was used to locate and isolate the g53 encoding region from the 449 kilodalton primary translation product open reading frame contained in the complete cDNA clone. The bovine viral diarrhea g48 and g53 genes were cloned by a PCR CLONING procedure essentially as described by Katz et al. (J. Virology 64: 1808-1811 (1990)) for the HA gene of human influenza. Viral RNA prepared from BVD virus Singer strain grown in Madin-Darby bovine kidney (MDBK) cells was first converted to cDNA utilizing an oligonucleotide primer specific for the target gene. The cDNA was then used as a template for polymerase chain reaction (PCR) cloning (67) of the targeted region. The PCR primers were designed to incorporate restriction sites which permit the cloning of the amplified coding regions into vectors containing the appropriate signals-for expression in IBRV. One pair of oligonucleotides were required for each coding region. The g48 gene coding region (amino acids 1-226) from the BVDV Singer strain (66) was cloned using the following primers: 5'-ACGTCGGATCCCTTACCAAACCACGTCTTACTCTTGTTTTCC- 3' (SEQ ID NO: 84) for cDNA priming and combined with 5' -ACATAGGATCCCATGGGAGAAAACATAACACAGTGGAACC-3' (SEQ ID NO: 85) for PCR. The g53 gene coding region (amnio acids 1-394) from the BVDV Singer strain (66) was cloned using the following primers: 5'- CTTGGATCCTCATCCATACTGAGTCCCTGAGGCCTTCTGTTC-3' (SEQ ID NO: 86) for cDNA priming and combined with 5'- CATAGATCTTGTGGTGCTGTCCGACTTCGCA-3' (SEQ ID NO: 87) for PCR. Note that this general strategy is used to clone the coding region of g48 and g53 genes from other strains of BVDV. CLONING OF BOVINE RESPIRATORY SYNCYTIAL VIRUS FUSION PROTEIN AND NUCLEOCAPSID PROTEIN GENES. The bovine respiratory virus (BRSV) fusion (F) , attachment (G) , an nucleocapsid protein (N) genes have been cloned essentially as described by Katz et al. (Journal of Virology, volume 64, 1808-1811 (1990)) for the HA gene of human influenza. Viral RNA prepared from virus grown in bovine nasal turbinate (BT) cells was first converted to cDNA utilizing an oligo nucleotide primer specific for the target gene. The cDNA was then used as a template for polymerase chain reaction (PCR) cloning (67) of the targeted region. The PCR primers were designed to incorporate restriction sites which permit the cloning of the amplified coding regions into vectors containing the appropriate signals for expression in IBRV. One pair of oligo nucleotides was required for each coding region. The N gene coding region from the BRSV strain 375 (ATCC No. VR 1339) was cloned utilizing the following primers: 5'- CGTCGGATCCCTCACAGTTCCACATCATTGTCTTTGGGAT-3 ' (SEQ IDNO: 88) for cDNA priming and combined with 5'- CTTAGGATCCCATGGCTCTTAGCAAGGTCAAACTAAATGAC-3' (SEQ ID NO: 89) for PCR. The G gene coding region from the BRSV strain 375 (ATCC No. VR 1339) was cloned utilizing t h e f o l l o w i n g p r i m e r s : 5 ' - CGTTGGATCCCTAGATCTGTGTAGTTGATTGATTTGTGTGA-3' (SEQ ID NO: 90) for cDNA priming and combined with 5'- CTCTGGATCCTCATACCCATCATCTTAAATTCAAGACATTA-3' (SEQ ID NO: 91) for PCR. The F gene from strain 375 (ATCC NO. VR 1339) of BRSV was cloned utilizing the following primers: 5' -TGCAGGATCCTCATTTACTAAAGGAAAGATTGTTGAT-3' (SEQ ID NO: 92) for cDNA priming and combined with 5'- CTCTGGATCCTACAGCCATGAGGATGATCATCAGC-3' (SEQ ID NO: 93) for PCR. Note that this general strategy may be used to clone the coding region of F and N genes from other strains of BRSV. CLONING OF PARAINFLUENZA-3 VIRUS FUSION AND HEMAGGLUTININ GENES. The parainfluenza-3 virus fusion (F) and hemagglutinin (HN) genes were cloned by a cDNA CLONING procedure as described in Examples 16 and 17 and also by a PCR CLONING procedure essentially as described by Katz et al. (Journal of Virology, volume 64, 1808-1811 (1990)) for the HA gene of human influenza. Viral RNA prepared from virus grown in Madin-Darby bovine kidney (MDBK) cells was first converted to cDNA utilizing an oligonucleotide primer specific for the target gene. The cDNA was then used as a template for polymerase chain reaction (PCR) cloning (67) of the targeted region. The PCR primers were designed to incorporate restriction sites which permit the cloning of the amplified coding regions into vectors containing the appropriate signals for expression in IBRV. One pair of oligonucleotides were required for each coding region. The F gene coding region from the PI-3 strain SF-4 (VR-281) was cloned using the following primers: 5' - TTATGGATCCTGCTGCTGTGTTGAACAACTTTGT-3' (SEQ ID NO: 94) for cDNA priming combined with 5'- CCGCGGATCCCATGACCATCACAACCATAATCATAGCC-3' (SEQ ID NO: 95) for PCR. The HN gene coding region from PI-3 strain SF-4 (VR-281) was cloned utilizing the following p r i m e r s : 5 ' - CGTCGGATCCCTTAGCTGCAGTTTTTTGGAACTTCTGTTTTGA-3' (SEQ ID NO: 96) for cDNA priming and combined with 5'- CATAGGATCCCATGGAATATTGGAAACACACAAACAGCAC-3' (SEQIDNO: 97) for PCR. Note that this general strategy is used to clone the coding region of F and HN genes from other strains of PI-3. CLONING OF PAST.EI7REZ.IiA HAEMOLYTICA LEUKOTOXIN AND IRON REGULATED OUTER MEMBRANE PROTEIN(S) . The Pasteurella haemolytica strain Al leukotoxin gene was cloned from a genomic DNA sample. Genomic DNA was prepared from P. haemolytica Al cells grown in culture (68) by the methods described in Maniatis et al. (1982). The purified P. haemolytica DNA was then used as a template for polymerase chain reaction (PCR) cloning (67) of the targeted leukotoxin gene. The PCR primers were designed so that restriction endonuclease sites were incorporated that allow the cloning of the 102 kilodalton toxin portion of the gene into vectors containing the appropriate signals for expression in IBR. The P. haemolytica Al (ATTC 43279 biotype A, serotype 1) leukotoxin gene was cloned utilizing the followingprimers: 5' -TATAGATCTTAGACTTACAACCCTAAAAAAC- 3 ' ( SEQ I D NO : 98 ) and 5 ' - CGTGGATCCAACTCTATAATGTGTGAAACAATATAG-3' (SEQ ID NO: 99) for PCR. Note that this general strategy is used to clone the coding regions for the leukotoxin gene of all P. haemolytica serotypes. The P. haemolytica Al iron regulated outer membrane proteins (IRP) of 3- major polypeptides with molecular weights of 35, 70 and 100 kilodaltons. The DNA coding for the array of P. haemolytica genes can be cloned in Escherichia coli using plasmid vectors essentially as described in Maniatis et al. (1982) . The clone library is constructed by partial digestion of the genomic DNA. The IRP genes can be isolated from this library of P. haemolytica clones by screening for the production of iron regulated outer membrane antigens by a colony enzyme-linked immunosorbent assay blot method with antiserum that is specific to the IRPs. This antiserum may be obtained by eluting antibodies derived from polyclonal antiserum raised against whole P. haemolytica or membrane enriched fractions but selectively bound to the IRPs on Western blots (69) . The specificity of the antibodies can be verified by immunoblot screening of P. haemolytica polypeptides from iron restricted and iron induced cultures. VACCINATION STUDIES IN CALVES WITH INACTIVATED IBR VIRUS. Calves, seronegative to IBR virus, were housed in facilities secure from IBR virus exposure. Groups of four calves were vaccinated intramuscularly with vaccines containing 10 7 - 3 or 10"° plaque forming units of inactivated IBR virus formulated with an oil adjuvant. A second vaccination was given 21 days later; four calves were maintained as unvaccinated controls. At 21 days after the second vaccination, animals were challenged intranasally with virulent wild-type IBR virus. After vaccination and challenge, animals were observed and the injection site was palpated weekly. Blood samples were taken on days 0, 7, 21, 28, and 42 post vaccination. After challenge, animals were observed daily for clinical signs of IBR. Blood samples were taken on days 7 and 13 post challenge. Nasal swabs were collected on days 3, 6, 9, and 12 post challenge. HOMOLOGY VECTOR 129-71.5. The plasmid 129-71.5 was constructed for the purpose of deleting a portion of the TK gene coding region from the IBR virus. It incorporates a selectable marker, the bacterial transposon neomycin resistance gene, flanked by IBR virus DNA. Upstream of the marker gene is an approximately 860 base pair fragment of IBR virus DNA which ends with sequences encoding amino acids 1-62 of the TK primary translation product. Downstream of the marker gene is an approximately 1741 base pair fragment of IBR virus DNA which begins with sequences encoding amino acids 156-367 of the TK primary translation product. When this plasmid is used according to the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS, it will replace the DNA coding for amino acids 63-155 of the TK primary translation product with DNA coding for the marker gene. Note that the marker gene will be under the control of the herpes simplex type 1 alpha-4 immediate early gene promoter (5) . A detailed description of the plasmid is given in Figures 7A-7H. It was constructed from the indicated DNA sources utilizing standard recombinant DNA techniques (6) . It may be constructed by joining restriction fragments from the fallowing sources with the synthetic DNA sequences indicated in Figures 7A-7H. The plasmid vector is derived from an approximately 2975 base pair Smal to Hindlll restriction fragment of pSP65 (Promega) . Fragment 1 is an approximately 860 base pair -Vcol to BamHI restriction fragment of the IBR virus Hindlll restriction fragment A (7) . This fragment is located on an approximately 5500 base pair Clal to Nrul fragment contained in the IBR virus Hindlll A fragment. Fragment 2 is an approximately 490 base pair PvuII to BamHI restriction sub-fragment of the HSV-1 BamHI restriction fragment N (5) . Note that the HSV-1 oriS region has been removed from this fragment by deletion of the sequences between the Smal sites located 1483 and 128 base pairs away from the PvulI end (10) . Fragment 3 is an approximately 1541 base pair Bgrlll to BamHI restriction fragment of plasmid pNEO (P.L. Biochemicals, Inc.). Fragment 4 is an approximately 784 base pair Smal to Smal restriction sub-fragment of the HSV-1 BamHI restriction fragment Q (10) . Note that this fragment is oriented such that the polyadenylation sequence (AATAAA) is located closest to junction D. Fragment 5 is an approximately 1741 base pair Bgrlll to StuI restriction sub-fragment from the IBR Hindlll restriction fragment A (7) . PLASMID 459-12.6. The plasmid 459-12.6 was generated for the purpose of constructing a recombinant cloning vector which expresses the IBR virus glycoprotein G. This was accomplished by inserting the IBR virus gG gene into S-PRV-013 (U.S. Serial No. 07/823,102 filed January 27, 1986). Plasmid 459-12.6 contains a chimeric gene under the control of the IBR virus gG promoter. The chimeric gene expresses a fusion protein consisting of the first 362 amino acids of IBR virus gG fused to amino acids 421-467 of the PRV gill (13) followed by amino acids 480-498 of the PRV gX (12) . The chimeric gene is flanked by Hindlll restriction sites. When this plasmid is used with S-PRV-013 and the restriction enzyme Hindlll according to the DIRECT LIGATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS the resulting recombinant will express the IBR virus gG. A detailed description of the plasmid is given in Figures 11A-11H. It was constructed from the indicated DNA sources utilizing standard recombinant DNA techniques (6) . It may be constructed by joining restriction fragments from the following sources with the synthetic DNA sequences indicated in Figures 11A- 11H. The plasmid vector is derived from an approximately 2999< base pair Xbal to Xbal restriction fragment of a hybrid cloning vector derived from pSP64 and pSP65 (Promega) . The hybrid cloning vector was constructed by joining approximately 1369 base pair Pvul to Smal fragment from pSP64 with the approximately 1652 base pair Pvul to Smal fragment from pSP65. Fragment 1 is an approximately 182 base pair PstI to EcoRV restriction sub-fragment of the HCMV Xbal restriction fragment B (16) . Fragment 2 is an approximately 2121 base pair Mlul to Xhol restriction sub-fragment of the IBR virus Hindlll restriction fragment K (7) . Fragment 3 is an approximately 121 base pair Xhol to BamHI restriction sub-fragment of the PRV BamHI restriction fragment #2 (3) . Fragment 4 is an approximately 760 base pair -Vdel to Sail restriction sub-fragment of the PRV BamHI restriction fragment #7 (3) . HOMOLOGY VECTOR 439-01.31. The plasmid 439-01.31 was constructed for the purpose of deleting a portion of the gG gene coding region from the IBR virus. It incorporates an E. coli β-galactosidase marker gene flanked by IBR virus DNA. Downstream of the marker gene is an approximately 3593 base pair fragment of IBR virus DNA which ends with sequences encoding the first 262 amino acids of the gG primary translation product. Upstream of the marker gene is an approximately 785 base pair fragment of IBR virus DNA which begins with sequences encoding the last 80 amino acids of the gG primary translation product. When this plasmid is used according to the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS it will replace the DNA coding for amino acids 263-361 of the gG primary translation product with DNA coding for the marker gene. Note that the β-galactosidase (lacZ) marker gene will be under the control of the human cytomegalovirus immediate early gene promoter. A detailed description of the plasmid is- given in Figures 12A-12H. It was constructed from the indicated DNA sources utilizing standard recombinant DNA techniques (6) . It may be constructed by joining restriction fragments from the following sources with the synthetic DNA sequences indicated in Figures 12A-12H. The plasmid vector is derived from an approximately 2965 base pair Hindlll to Smal restriction fragment of pSP64 (Promega) . Fragment 1 is an approximately 3593 base pair Hindlll to Xhol restriction fragment of the IBR Hindlll restriction fragment K (7) . Fragment 2 is an approximately 753 base pair Sail to iVdel restriction fragment of the PRV BamHI restriction fragment #7 (3) . Note that this fragment was resected with Exonuclease III/S1 nuclease digestion such that approximately 57 base pairs were removed from the JWdel end. Fragment 3 is an approximately 3347 base pair Ball to BamHI restriction fragment of plasmid pJF751 (38) . Fragment 4 is an approximately 1191 base pair Aval to PstI restriction fragment from the HCMV Xbal restriction fragment E (16) . Fragment 5 is an approximately 785 base pair Xhol to iVdel restriction fragment from the IBR Hindlll restriction fragment K (7) . Note that the lacZ marker gene is flanked by Xbal sites located at Junction B and Junction E in this plasmid permitting the marker gene to be cut out with Xbal. HOMOLOGY VECTOR 439-21.69. The plasmid 439-21.69 was constructed for the purpose of deleting a portion of the gG gene coding region from the IBR virus. It incorporates an E. coli β-galactosidase (lacZ) marker gene flanked by IBR virus DNA. Downstream of the marker gene is an approximately 888 base pair fragment of IBR virus DNA which begins approximately 1042 base pairs upstream of the initiation codon of the gG gene and ends approximately 154 base pairs upstream of the initiation codon of the gG gene. Upstream of the marker gene is an approximately 785 base pair fragment of IBR virus DNA which begins with sequences encoding the last 80 amino acids of the gG primary translation product. When this plasmid is used according to the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS it will replace the DNA coding for amino acids 1-361 of the gG primary translation product with DNA coding for the marker gene. Note that the β-galactosidase (lacZ) marker gene will be under the control of the human cytomegalovirus immediate early gene promoter. A detailed description of the plasmid is given in Figures 13A-13H. It was constructed from the indicated DNA sources utilizing standard recombinant DNA techniques (6) . It may be constructed by joining restr iction fragments from the following sources with the synthetic DNA sequences indicated in Figures 13A-13H. The plasmid vector is derived from an approximately 2965 base pair Hindlll to Smal restriction fragment of pSP64 (Promega) . Fragment 1 is an approximately 3593 base pair Hindlll to Xhol restriction fragment of the IBR Hindlll restriction fragment K (7) . Fragment 2 is an approximately 753 base pair Sail to Ndel restriction fragment of the PRV BamHI restriction fragment #7 (3) . Note that this fragment was resected with Exonuclease III/S1 nuclease digestion such that approximately 57 base pairs were removed from the Ndel end. Fragment 3 is an approximately 3347 base pair Ball to BamHI restriction fragment of plasmid pJF751 (38) . Fragment 4 is an approximately 1191 base pair Aval to PstI restriction fragment from the HCMV Xbal restriction fragment E (16) . Fragment 5 is an approximately 785 base pair Xhol to Ndel restriction fragment from the IBR Hindlll restriction fragment K (7) . Note that the lacZ marker gene is flanked by Xbal sites located at Junction B and Junction E in this plasmid permitting the marker gene to be cut out with.- Xbal. HOMOLOGY VECTOR 439-70.4. The plasmid 439-70.4 was constructed for the purpose of deleting the E. coli β- galactosidase (lacZ) marker gene from S-IBR-035 virus. It . incorporates two regions of IBR viral DNA which flank the marker gene in S-IBR-035. The first region is an approximately 888 base pair fragment of IBR virus DNA which begins approximately 1042 base pairs upstream of the initiation codon of the gG gene and ends approximately 154 base pairs upstream of the initiation codon of the gG gene. The second region is an approximately 785 base pair fragment of IBR virus DNA which begins with sequences encoding the last 80 amino acids of the gG primary translation product. When this plasmid is used in conjunction with S-IBR-035 DNA according to the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS it will delete the DNA coding for the E. coli β-galactosidase (lacZ) marker gene. A detailed description of the plasmid is given in Figures 14A-14E. It was constructed from the indicated DNA sources utilizing standard recombinant DNA techniques (6) . It may be constructed by joining restriction fragments from the following sources with the synthetic DNA sequences indicated in Figures 14A- 14E. The plasmid vector is derived from an approximately 2965 base pair Hindlll to Smal restriction fragment of pSP64 (Promega) . Fragment 1 is an approximately 3593 base pair Hindlll to Xhol restriction fragment of the IBR Hindlll restriction fragment K (7) . Fragment 2 is an approximately 785 base pair Xhol to Ndel restriction fragment from the IBR Hindlll restriction fragment K (7) . HOMOLOGY VECTOR 523-78.72. The plasmid 523-78.72 was constructed for the purpose of deleting a portion of the gE coding region from the IBR virus. It was also used to insert foreign DNA into IBRV. Plasmid 523- 78.72 was constructed by digestion of the plasmid 536- 03.5 with the enzyme Xbal followed by religation to remove the lacZ marker gene. It incorporates two regions of IBR viral DNA which flanked the marker gene in S-IBR-039. The first region is an approximately 1704 base pair fragment of IBR virus DNA which ends with sequences encoding amino acids 1-76 of the gE primary translation product. The second region is an approximately 742 base pair fragment of IBR virus DNA which begins with sequences encoding amino acids 548- 617 of the gE primary translation product. When the plasmid 523-78.72 is used with S-IBR-039 according to the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS, it will delete the DNA coding for the E. coli /3-galactosidase (lacZ) marker gene. A detailed description of plasmid 523-78.72 is given in Figures 26A-26B. It may be constructed utilizing standard recombinant DNA techniques (6) , by joining restriction fragments from the following sources with the synthetic DNA sequences indicated in Figures 26A- 26B. The plasmid vector 523-78.72 is derived from an approximately 2975 base pair SmaJ to Hindlll restriction fragment of pSP65 (Promega) . Fragment 1 is an approximately 1704 base pair Smal to Smal restriction sub-fragment of the IBR Hindlll restriction fragment K (7) . Fragment 2 is an approximately 742 base pair Whel to Bgrll sub-fragment of an IBR virus 2500 base pair Smal fragment. HOMOLOGY VECTOR 536-03.5. The plasmid 536-03.5 was constructed for the purpose of deleting a portion of the gE gene coding region from the IBR virus. It incorporates an E. coli β-galactosidase (lacZ) marker gene flanked by IBR virus DNA. Upstream of the marker gene is an approximately 1704 base pair fragment of IBR virus DNA which ends with sequences encoding amino acids 1-76 of the gE primary translation product. Downstream of the marker gene is an approximately 742 base pair fragment of IBR virus DNA which begins with sequences encoding amino acids 548-617 of the gE primary translation product. When this plasmid is used according to the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS, it will replace the DNA coding for amino acids 77-547 of the gE primary translation product with DNA coding for the marker gene. Note that the β-galactosidase (lacZ) marker gene will be under the control of the PRV gX. A detailed description of the plasmid is given in Figures 18A-18G. It may be constructed utilizing standard recombinant DNA techniques (6) , by joining restriction fragments from the following sources with the synthetic DNA sequences indicated in Figures 18A-18G. The plasmid vector is derived from an approximately 2975 base pair Smal to Hindlll restriction fragment of psP65 (Promega) . Fragment 1 is an approximately 1704 base pair Smal to Smal restriction sub-fragment of the IBR Hindlll restriction fragment K (7) . Fragment 2 is an approximately 413 base pair Sail to BamHI restriction fragment #7 (3) . Fragment 5 is an approximately 742 base pair Nhel to Bgrll sub-fragment of an IBR virus 2400 base pair Smal fragment. This Smal fragment has been cloned into the Smal site of the plasmid pSP64 (Promega). This plasmid is designated PSY1645. PSY1645 was deposited on July 16, 1991 with the American Type Culture Collection. Note that the lacZ marker gene is flanked by Xbal sites located at Junction B and Junction E in this plasmid permitting the marker gene to be cut out with Xbal. HOMOLOGY VECTOR 591-21.20. The plasmid 591-21.20 was constructed for the purpose of deleting a portion of the IBR thymidine kinase gene. It may also be used to insert foreign DNA into IBR. It contains a unique Bgrlll restriction enzyme site into which foreign DNA may be inserted. It may be constructed utilizing standard recombinant DNA techniques (6, 14) by joining restriction fragments from the following sources with the synthetic DNA sequences indicated in Figure 24. The plasmid vector is derived from an approximately 2999 base pair Sail to Sail restriction fragment of pSP64 (Promega) . Fragment 1 is an approximately 1400 base pair Sail to Narl restriction subfragment contained on the approximately 2700 base pair Sail- Sail restriction subfragment of the IBR Hindlll restriction fragment A (72) . Fragment 2 is an approximately 1215 base pair Bgrllll to Sail restriction subfragment contained on the approximately 2700 base pair Sail- Sail restriction subfragment of the IBR Hindlll restriction fragment A (72) . HOMOLOGY VECTOR 552-46.12. The plasmid 591-46.12 was constructed for the purpose of deleting a portion of the Tk gene coding region from the IBR virus. It incorporates an E. coli β-glucuronidase (uidA) marker gene flanked by IBR virus DNA. The uidA marker gene was inserted into the homology vector 591-21.20 at the unique Bgrlll site. The marker gene is oriented in the same direction as the Tk gene in the homology vector. A detailed description of the marker gene is given in Figures 25A-25B. It may be constructed utilizing standard recombinant DNA techniques (6, 14) by joining restriction fragments from the following sources with the synthetic DNA sequences indicated in Figures 25A- 25B. Fragment 1 is an approximately 404 base pair Sail to EcoRI restriction subfragment of the PRV BamHI restriction fragment #10 (3) . Note that the EcoRI site was introduced at the location indicated in Figures 12A-12H by PCR cloning. Fragment 2 is an approximately 1823 base pair EcoRI to Smal fragment of the plasmid pRAJ260 (Clonetech) . Note that the EcoRI and Smal sites were introduced at the locations indicated in Figures 25A-25B by PCR cloning. Fragment 3 is an approximately 784 base pair Smal to Smal restriction subfragment of the HSV-1 BamHI restriction fragment Q (10) . Note that this fragment is oriented such that the polyadenylation sequence (AATAAA) is located closest to junction C. HOMOLOGY VECTOR 691-096.2. The homology vector 691- 096.2 was constructed for the purpose of inserting foreign DNA into the unique long of IBRV. It was constructed utilizing standard recombinant DNA techniques (6) , by joining restriction fragments from the following sources. The plasmid vector was derived from an approximately 2485 base pair Nael to PvulI restriction fragment of pSP65 (Promega) . Fragment 1 is an approximately 3900 base pair Apal to Apal restriction sub-fragment within the larger BamHI - Kpnl subfragment of the IBRV BamHI restriction fragment C (7) . Foreign DNA is inserted into a unique Hindlll or Xbal restriction endonuclease site within the Apal to Apal restriction subfragment. HOMOLOGY VECTOR 756-11.17 The homology vector 756- 11.17 was constructed for the purpose of inserting foreign DNA into the gG deletion within the unique short region of IBRV and was derived from homology vector 439-70.4. It incorporates an E. coli uidA marker gene and PI-3 HN (amino acids 1-573) and F genes (amino acids 4-450) flanked by IBRV DNA. The first IBRV region is an approximately 888 base pair fragment of IBR virus DNA which begins approximately 1042 base pairs upstream of the initiation codon of the gG gene and ends approximately 154 base pairs upstream of the initiation codon of the gG gene. The second IBRV region is an approximately 785 base pair fragment of IBR virus DNA which begins with sequences encoding the last 80 amino acids of the gG primary translation product. Inserted into the IBRV gG deletion region between the first and second regions is a synthetic polylinker adding restriction endonuclease sites for Swal-Bgrlll-Swal- Hindi11-BamHI-Spel. The lacZ gene was inserted into the Swal site of the polylinker, and the PI-3 F and HN genes were inserted into the Hindlll site of the polylinker. The PI-3 F and HN genes were isolated by CLONING OF PARAINFLUENZA-3 FUSION AND HEMAGGLUTININ GENES. The homology vector 756-11.17 was constructed utilizing standard recombinant DNA techniques (6) , by joining restriction fragments from the following sources. The plasmid vector was derived from an approximately 2965 base pair Hindlll to Smal restriction fragment of pSP64 (Promega) . Fragment 1 is an approximately 3593 base pair Hindlll to Xhol restriction fragment of the IBRV Hindlll restriction fragment K (7) . Fragment 2 is a HSV-1 TK promoter lacZ gene DNA fragment inserted into the Swal site of the synthetic polylinker. Fragment 3 is a HCMV IE promoter PI-3 F gene/PRV gX promoter PI-3 HN gene DNA fragment inserted into the Hindlll site of the synthetic polylinker. Fragment 4 is an approximately 785 base pair Xhol to Ndel restriction fragment of the IBRV Hindlll restriction fragment K (7) . HOMOLOGY VECTOR 769-73.1 The homology vector 769-73.1 was constructed for the purpose of inserting foreign DNA into the repeat region of IBRV. It was constructed utilizing standard recombinant DNA techniques (6) , by joining restriction fragments from the following sources. The plasmid vector was derived from an approximately 2792 base pair Smal to PvuII restriction fragment of pSP65 (Promega) . Fragment 1 is an approximately 2900 base pair -Vrul to Xhol restriction sub-fragment within the smaller Kpnl - BamHI subfragment of the IBRV BamHI restriction fragment C (7) . A synthetic polylinker was inserted into a unique EcoRV site within the 2900 base pair Wrul to Xhol fragment. The synthetic polylinker provides unique restriction sites: Swal-Bgrlll-Swal-Hindlll-BamHI-Spel. EXAMPLES Example 1 S-IBR-002 S-IBR-002 is an IBR virus that has a deletion of approximately 800 bp in the repeat region of the genome. This deletion removes the only two EcoRV restriction sites on the virus genome and an adjacent Bglll site (Figure 2) . To construct this virus, the DIRECT LIGATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS was performed. Purified IBR virus DNA (Cooper strain) digested with EcoRV restriction enzyme was mixed with Dral- restriction enzyme-digested plasmid DNA containing the E. coli β-galactosidase (lacZ) gene under the control of the HSV-1 TK promoter. After ligation the mixture was used to transfect animal cells and the transfection stock was screened for recombinant IBR virus by the SOUTHERN BLOTTING OF DNA procedure. The final result of the purification was the recombinant IBR virus designated S-IBR-002. It was shown by Southern hybridization that this virus does not carry any foreign genes. Restriction enzyme analysis also showed that the insertion sites (EcoRV) in both repeats were deleted. Figure 2 shows the restriction map of the EcoRI B fragment which contains the EcoRV restriction sites and the map of S-IBR-002 which lacks the EcoRV sites. S-IBR-002 was deposited on June 18, 1986 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. VR 2140. A study was conducted to determine the safety and serological response of young calves following intramuscular administration of S-IBR-002. These results are presented in Table 1. Three calves were inoculated intramuscularly with 10 7 PFU of S-IBR-002. Clinical signs of IBR and febrile response were absent in these calves, as well as in the contact control calf. All three calves developed significant neutralizing antibody to IBR virus but the contact 10 control remained seronegative. These results suggest that S-IBR-002 is useful as a vaccine against IBR disease. Table 1. Serologic and Clinical Response of Young Calves Following Vaccination with S- IBR-002 Virus Calf Clinical and Virus Antibody Titer Construct # Febrile Isolation* Days Post Inoculation response 0 7 14 21 28 28 NONE (-) <2 <4 6 5 3 S-IBR-002 30 NONE (-) <2 <4 6 <2 6 94 NONE (-) <2 <4 6 3 8 Control 32 NONE (-) <4 <4 <4 <2 <4 From nasal swabs and peripheral blood leukocytes. Example 2 Unique Short 2 gene The unique short region of IBR virus contains a gene homologous to the US2 gene of several other herpesviruses. In the studies described below deletion of the IBR unique short 2 gene (US2) may render the virus safe for use in pregnant cows, as determined by direct fetal inoculation. Observing that the Nasalgen IBR vaccine strain will not cause abortion when used in IBR-susceptible pregnant cows at various stages of gestation (18,65), the genomic lesion responsible for this property are determined. The genome of this virus are characterized by restriction mapping and DNA sequence analysis. It was determined that a major portion of the IBR virus US2 gene was deleted from the Nasalgen virus. Restriction mapping of the Nasalgen virus indicated that the Hindlll K fragment contained an approximately 800 base pair deletion. The deletion was localized to the end of the Hindlll K Fragment located next to the Hindlll O fragment (see Figure 1) . Therefore, the Hindlll K fragment from the Cooper strain was subcloned and this region was sequenced. The first 1080 base pairs of the fragment were found to contain an open reading frame (ORF) coding for 309 amino acids (see Figure 3) . The ORF is 68% G+C and encodes a protein with a predicted molecular weight of 46,094. Comparison of the sequence of the predicted protein with sequences of gene products of HSV-1, PRV, HSV-2, and marek's disease virus in the unique short region indicated that this ORF is homologous to the herpesvirus US2 gene (see Figures 4A-4B) . Although the function of the herpesvirus US2 gene is not known, the gene has been shown to be nonessential for growth of HSV in cell culture (4,19) . The US2 gene has also been shown to be deleted- in the PRV vaccine strains Norden and Bartha (11) . The Hindlll K fragment from the Nasalgen virus was subcloned and the deletion region was sequenced. When the- sequence obtained from the Nasalgen strain was compared to the sequence obtained from the Cooper strain (see Figures 5A-5B) , it was possible to determine that amino acids 59 to 309 of the US2 gene had been deleted. It was also determined that most of the Hindlll 0 fragment had also been deleted. Cattle studies have shown that the Nasalgen virus will not cause abortion when used in IBR-susceptible pregnant cows at various stages of gestation (18) . Since the only major difference between the wild-type IBR strain and the Nasalgen strain resides in the deletion of the US2 gene, this gene may be involved in the fetal virulence observed for the wild type virus. Example 3 S-IBR-027 S-IBR-027 is an IBR virus that has a deletion of approximately 800 bp in the repeat regions and approximately 1200 bp in the short unique region of the genome. The deletion in the short unique region removes the US2 gene (Figure 6) . The repeat deletion was derived from the parental virus S-IBR-002 and is described in Example 2. To construct this virus, the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS was performed. A homology vector containing the bacterial transposon Tn5 NEO (aminoglycosidase 3'- phosphotransferase) gene under the control of the HSV 0!4 promoter flanked-by sequences from the IBR virus TK gene was constructed. The IBR virus homology regions were derived from the TK gene. The upstream homology included the first amino acid of the TK gene (15) and extended approximately 800 base pairs upstream of the TK coding region. The downstream homology included amino acids 156 to 357 and extended downstream of the TK coding region approximately 60 base pairs. S-IBR- 002 DNA was mixed with the homology vector and transfected into rabbit skin cells as indicated in the methods. The transfection stock was selected according to the SELECTION OF G418 RESISTANT IBR VIRUS. Individual clones were picked after one round of selection and analyzed by the SOUTHERN BLOTTING OF DNA procedure. When a probe derived from the NEO gene was used in this analysis, one clone was found which did not hybridize to the NEO probe but had a Hindlll restriction digestion pattern clearly distinct from the parental S-IBR-002. Further analysis indicated that the NEO had not been inserted into the TK region, however an approximately 1200 base pair deletion had occurred in the Hindlll K fragment. In order to characterize the Hindlll K deletion, that fragment was subcloned and subjected to restriction mapping. Utilizing a series of oligonucleotide probes derived from the wild type sequence it was determined that approximately 1200 base pairs were deleted from the end of the Hindlll K fragment adjacent to the Hindlll K/ Hindlll 0 junction (see Figure 6) . This deletion removes the entire coding region of the US2 gene. S-IBR-027 was deposited on April 17, 1991 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. VR 2322. Direct fetal inoculation is the most sensitive test for determining the safety of live, IBR vaccines as regards their use in pregnant cows or in calves nursing pregnant cows. Three virus constructs were tested for fetal safety by inoculating directly into the bovine fetus, following laparotomy to expose the uterus. Abortion occurring within seven days after inoculation was considered to be surgically-induced. If fetuses aborted after this time, tissue samples were removed and cultured for the presence of the IBR construct. Caesarean sections were performed on cows with fetuses surviving for greater than 30 days post-inoculation. Fetal tissue was removed for virus culturing and blood samples were taken for evaluation,of serum antibody to IBR virus. The S-IBR-027 construct described above was tested, as well as two other constructs, S-IBR-020 and S-IBR-028. The S-IBR-020 construct was derived from the Cooper strain of IBR virus by making deletions in the repeat regions of the DNA and by inserting the Tn5 NEO gene. The S-IBR-028 construct was derived from the Cooper strain of IBR virus by making deletions in the repeat region of the DNA and in the TK gene. -The Tn5 NEO gene was also inserted into the TK deletion. The following results were obtained from studies with the three virus constructs. In the studies with S-IBR- 020, two fetuses were inoculated, one at approximately 130-140 days gestation and the other at approximately 170-180 days gestation. The younger fetus aborted twenty days after inoculation, but virus could not be recovered from tissue samples of this fetus (Table 2) . The other fetus was live and appeared normal when it was surgically removed 60 days post-inoculation. In studies with S-IBR-027, four fetuses, ranging in age from 125 days to >250 days, were inoculated (Table 2) . All fetuses survived and appeared normal. In studies with S-IBR-028, three fetuses, ranging in age from 140 days to >250 days, were inoculated. The youngest and eldest fetuses survived and appeared normal, however the fetus inoculated at 160-170 days gestation aborted nine days after inoculation. Direct fetal inoculation is the most sensitive test for measuring the safety of live, IBR viruses used in pregnant cows. To date, the gene(s) involved in fetal virulence has not been reported. IBR viruses was engineered with deletions in three different regions of IBR virus DNA and then determined the effect of the gene deletion. All three virus constructs tested have a deletion in the repeat region of the DNA and two constructs do not have TK activity. One fetus inoculated with each of the TK- constructs has aborted. In contrast, the construct with deletions in the repeat regions and the US2 gene (S-IBR-027) has been inoculated into four fetuses with no adverse reactions. Table 2. Safety of IBR Viruses for Bovine Fetuses Construct Fetal Age* Results Fetus aborted Day 20 post- 130-140 Days inoculation; no virus isolated S-IBR-020 Normal, live fetus 60 days post- 170-180 Days inoculation Normal, live fetus 60 days post- 125-135 Days inoculation Normal, live calf born 56 days 150-160 Days post-inoculation S-IBR-027 Normal, live calf born 30 days 220-240 Days post-inoculation Normal, live calf born 30 days >250 Days post-inoculation Normal, live fetus 60 days post- 140-150 Days inoculation Fetus aborted Day 9 post- S-IBR-028 160-170 Days inoculation; no virus isolated Normal, live calf born 12 days >250 Days post-inoculation "Approximate age at time of virus inoculation S-IBR-027 is safe for fetal inoculation in contrast to S-IBR-020 and S-IBR-028 which are not. Although all three viruses were engineered by similar approaches, the distinguishing difference of S-IBR-027 is the deletion of the US2 gene. Nasalgen virus, which was generated by independent methods, is also safe for use in IBR-susceptible pregnant cows, has been deleted in the US2 gene. Although the S-IBR-027 and Nasalgen have the similar property of fetal safety, S-IBR-027 offers additional advantages. The major portion of the US2 gene (251 out of 309 amino acids) has been deleted in the Nasalgen virus. This deletion would clearly inactivate the gene, however the remaining portion of the gene may make it more likely to revert to virulence via recombination with other viruses. The complete coding region of the US2 has been deleted from S-IBR-027 making it less likely that this gene could be restored and revert the virus to virulence. The S-IBR-027 construct also carries an important deletion in the repeat region, which is not present in the Nasalgen virus. A deletion in the analogous region of the pseudorabies virus (PRV) has been shown to be valuable in attenuating PRV for swine (see U.S. Patent No. 4,877,737) . This deletion has also been shown to attenuate IBR for cattle as seen in the testing of S- IBR-002 (see Example 1) . Example 4 S-IBR-028 S-IBR-028 is an IBR virus that has a deletion of approximately 800 bp in the repeat regions and approximately 250 bp in the TK region of the genome. The deletion in the TK region inactivates the TK gene. The repeat deletion was derived from the parental virus S-IBR-002 and is described in Example 2. To construct this virus, the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS was performed. A homology vector containing the bacterial transposon Tn5 NEO (aminoglycosidase 3'- phosphotransferase) gene under the control of the HSV-1 otA gene promoter flanked by sequences from the IBR virus TK gene was constructed. The IBR virus homology regions were derived from the TK gene. The upstream homology included amino acids 1 to 62 of the TK gene (15) and extended approximately 674 base pairs upstream of the TK coding region. The downstream homology included amino acids 156 to 357 and extended downstream of the TK coding region approximately 1138 base pairs. S-IBR-002 DNA was mixed with the homology vector 129- 71.5 and transfected into rabbit skin cells as indicated in the methods. The transfection stock was selected according to the SELECTION OF G418 RESISTANT IBR VIRUS. Individual clones were picked after two rounds of selection and analyzed by the SOUTHERN BLOTTING OF DNA procedure. Several clones were assayed for TK activity by a 14 C-thymidine incorporation assay (29) . One clone which was negative for TK activity was chosen and characterized by digestion with Hindlll and Xbal. The restriction endonuclease analysis confirmed that the NEO gene had been inserted into the TK gene. This clone, designated S-IBR-028, was deposited on May 14, 1991 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. VR 2326. Example 5 Glycoprotein G gene Deletion of the PRV gX gene has been shown to be valuable both as an attenuating lesion and as a negative serological marker (see U.S. Serial No. 192,866, filed May 11, 1988 now U.S. Patent No. 5,047,237 issued September 10, 1991). In the studies described below the unique short region of IBR virus was shown to contain a gene homologous to the gX gene of PRV. The sequence of an approximately 1400 base pair region of the IBR Hindlll K fragment (see Figure 8) , located approximately 2800 base pairs downstream of the Hindlll K/Hindlll 0 junction was determined. This region was found to contain an ORF coding for 441 amino acids translated in the direction away from the Hindlll K/Hindlll 0 junction (see Figure 1) . The ORF is 69% G+C and encodes a protein with a predicted molecular weight of 58,683. Comparison of the sequence of the predicted protein with sequences of gene products of HSV-2 and PRV in the unique short region indicated that this ORF is homologous to the herpesvirus gG gene (see Figures 9A-9B) . The complete gG gene resides on an approximately 2800 base pair lul to Ndel sub-fragment of the IBR virus Hindlll K fragment. This subfragment has been cloned as a blunt ended fragment into the plasmid pSP64. This plasmid is designated PSY1643. PSY1643 was deposited on July 16, 1991 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. 68652. This plasmid may be used to confirm the sequence of the gG gene. The sequence of the gG gene may also be confirmed by comparing the appropriate DNA sequence of the wild type virus S-IBR-000 (Cooper strain with the sequence of the gG deleted virus S-IBR-037 (ATCC Accession No. 2320) . To confirm the expression of the IBR virus gG gene product, cells were infected with IBR virus and samples of media from infected cultures were subjected to SDS- polyacrylamide gel electrophoresis. The gel was blotted and analyzed using the WESTERN BLOTTING PROCEDURE. The anti-serum used was a mouse hyper- immune serum raised against chemically-synthesized gG peptides (amino acids 242-254 and 269-289) linked to keyhole limpet hemocyanin. As shown in Figure 10, gG is prominent in the media of cells infected with wild type virus (S-IBR-000) , but is not detected in media of mock infected cells. Example 6 S-PRV-160 S-PRV-160 is a pseudorabies virus that has a deletion in the TK gene in the long unique region, a deletion in the repeat region, and an approximately 1414 base pair deletion in the gX coding region. The gene for E. coli β-galactosidase (lacZ gene) was inserted in the place of the gX gene and is under the control of the gX promoter. A chimeric gene coding for an IBR virus gG, PRV gill and PRV gX fusion protein was inserted at the Hindlll sites located in each repeat. S-PRV-160 was constructed utilizing plasmid 459-12.6, pseudorabies virus S-PRV-013 (see U.S. Serial No. 823,102, filed January 27, 1986 now U.S. Patent No. 5,068,192 issued November 26, 1991 and U.S. Serial No. 07/192,866, filed May 11, 1988 now U.S. Patent No. 5,047,237 issued -September 10, 1991) and the restriction enzyme Hindlll in the DIRECT LIGATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. Several clones were screened by digestion with Hindlll for the presence of the Hindlll band containing the chimeric gene insert from plasmid 459-12.6. One clone exhibiting the correct Hindlll insert band was chosen and designated S-PRV-160. S-PRV-160 was constructed so that it would express precisely the gG specific amino acids that were deleted in S-IBR-037. This allows the gG fusion protein expressed in S-PRV-160 to be used as an antigen to identify antibodies directed against the wild type virus as opposed to antibodies directed against S-IBR- 037. Note that gX, the PRV homologue of IBR virus gG, has been deleted from S-PRV-160 to prevent any confusion resulting from cross reactivity that might exist between the two proteins. To confirm that S-PRV- 160 does express IBR virus gG, a Western blot analysis was performed. As can be seen in Figure 10, gG specific antibody does react with an appropriately sized media protein from S-PRV-160. S-PRV-160 may also be utilized as an antigen for the production of gG specific monoclonal antibodies. Such antibodies are useful in the development of diagnostic tests specific for the gG protein. Monoclonal antibodies were generated in mice utilizing S-PRV-160 according to the PROCEDURE FOR GENERATING MONOCLONAL ANTIBODIES. One of these antibodies' clone 3-1G7 was shown to react specifically with purified gG in the gG ELISA assay. Example 7 S - IBR- 035 S-IBR-035 is an IBR virus that has two deletions in the short unique region of the genome. The first deletion is approximately 2500 base pairs and begins in the Hindlll K fragment approximately 1750 base pairs downstream of the Hindlll 0/HindIII K junction and extends back through that junction. This deletion removes the US2 gene. The second deletion is approximately 294 base pairs and begins in the Hindlll K fragment approximately 3900 base pairs downstream of the Hindlll K/ Hindlll 0 junction and extends back toward that junction. This deletion removes amino acids 263 to 361 of the gG gene. The gene for E. coli β-galactosidase (lacZ gene) was inserted into the deletion in the gG gene and is under the control of the HCMV immediate early promoter. S-IBR-035 was derived from S-IBR-000 (Cooper strain) . This was accomplished utilizing the homology vector 439-01.31 (see Materials and Methods) and virus S-IBR- 000 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. The transfection stock was screened by the BLUOGAL ™ SCREEN FOR RECOMBINANT HERPESVIRUS. The final result of blue plaque purification was the recombinant virus designated S-IBR-035. This virus was characterized by restriction mapping and the SOUTHERN BLOTTING DNA procedure. This analysis confirmed the insertion of the β-galactosidase (lacZ) marker gene and the deletion of approximately 294 base pairs of the gG gene. It was also confirmed that an approximately 2500 base pair deletion had occurred in the region of the US2 gene. Example 8 S-IBR-036 S-IBR-036 is an IBR virus that has two deletions in the short unique region -of the genome. The first deletion is approximately 2500 base pairs and is similar to the deletion in S-IBR-035 (see Example 7) which removes the US2 gene. The second deletion is approximately 1230 base pairs and begins in the Hindlll K fragment approximately 3900 base pairs downstream of the Hindlll 0/HindIII K junction and extends back toward that junction. This deletion removes amino acids 1 to 361 of the gG gene. The gene for E. coli β-galactosidase (lacZ gene) was inserted into the deletion in the gG gene and is under the control of the HCMV immediate early promoter. S-IBR-036 was derived from S-IBR-000 (Cooper strain) . This was accomplished utilizing the homology vector 439-21.69 (see Materials and Methods) and virus S-IBR- 000 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. The transfection stock was screened by the BLUOGAL SCREEN FOR RECOMBINANT HERPESVIRUS. The final result of blue plaque purification was the recombinant virus designated S-IBR-036. This virus was characterized by restriction mapping and the SOUTHERN BLOTTING DNA procedure. This analysis confirmed the insertion of the β-galactosidase (lacZ) marker gene and the deletion of approximately 1230 base pairs of the gG gene. It was also confirmed that an approximately 2500 base pair deletion had occurred in the region of the US2 gene (see above) . Example 9 S-IBR-037 S-IBR-037 is an IBR virus that has two deletions in the short unique region of the genome. The first deletion is approximately 2500 base pairs and begins in the Hindlll K fragment- approximately 1750 base pairs downstream of the Hindlll 0/HindIII K junction and extends back through that junction. This deletion removes the US2 gene. The second deletion is approximately 1230 base pairs and begins in the Hindlll K fragment approximately 3900 base pairs downstream of the Hindlll 0/ Hindlll K junction and extends back toward that junction. This deletion removes amino acids 1 to 361 of the gG gene. S-IBR-037 was derived from S-IBR-035. This was accomplished utilizing the homology vector 439-70.4 (see Materials and Methods) and virus S-IBR-035 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. The transfection stock was screened by the BLUOGAL" SCREEN FOR RECOMBINANT HERPESVIRUS. The result of white plaque purification was the recombinant virus designated S-IBR-037. This virus was characterized by restriction mapping and the SOUTHERN BLOTTING DNA procedure. This analysis confirmed the deletion of the β-galactosidase (lacZ) marker gene and the deletion of approximately 1230 base pairs of the gG gene. It was also confirmed that an approximately 2500 base pair deletion had occurred in the region of the US2 gene (see above) . S-IBR-037 was deposited on April 16, 1991 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. VR 2320. To test the efficacy of S-IBR-037 as an inactivated IBR virus vaccine in protecting susceptible calves against virulent IBR virus challenge, a study was performed according to the VACCINATION STUDIES IN CALVES WITH INACTIVATED IBR VIRUS. The following results were observed. Virus neutralization antibody titers were elicited in animals after the first vaccination (see Table 3) . Antibody titers were not significantly different between animals that received a vaccine dose of 10 7 - 3 virus and animals vaccinated with lO 8,0 virus. After the second vaccination, mean antibody titers increased to 1:19 and 1:32, respectively, for the 10 7 - 3 and 10 8 - 0 vaccine groups. Control animals remained seronegative to IBR virus throughout the vaccination period. Antibody titers in both vaccinate groups showed an increase typical of an anamnestic response after challenge with virulent IBR virus. By 13 days post challenge, mean antibody titers were 1:152 and 1:215 for the 10 7 - 3 and 10 8 - 0 vaccinate groups respectively. In contrast, mean antibody titers in challenged control animals were 1:4 at 7 days and 1:8 at 13 days post challenge. Nasal swabs were collected from challenged animals to determine whether vaccination decreased the time of virus shedding (Table 4) . The most dramatic difference between vaccinates and control animals was observed at 12 days post challenge. At this time, seventy-five percent of control animals continue to shed, whereas, only twenty-five percent of both vaccinate groups shed virus. Virus was not isolated from control or vaccinated groups at 15 days post challenge. Table 3. Generation of virus neutralizing antibody in animals vaccinated with inactivated S-IBR-037 vaccine. Antibody titer a on days: Animal No. Post Vaccination Post Challenge 7 21 28 42 7 13 Controls 9 s2 ≤2 ≤2 s2 4 4 22 ≤2 ≤2 ≤2 ≤2 4 8 32 ≤2 ≤2 ≤2 s2 4 16 64 ≤2 ≤2 ≤2 ≤2 4 8 GMT ≤2 ≤2 ≤2 ≤2 4 8 Vaccinates dose 10 7 - 3 1 ≤2 8 32 64 64 128 20 ≤2 8 32 64 64 256 25 ≤2 8 16 8 64 512 36 ≤2 4 16 4 16 ≥32 GMT ≤2 6.7 22.6 * 19.0 * .45.34 ;L52.2 Vaccinates dose 10 8 - 0 7 ≤2 4 32 8 64 256 30 ≤2 ≥8 64 128 128 ≥128 33 ≤2 16 32 128 128 256 69 ≤2 4 16 8 128 256 GMT ≤2 6.7 32 * 32 * .107.6 215.3 Statistically greater than controls (p≤0.05) a Expressed as reciprocal of dilution. Table 4. Isolation of IBR virus from vaccinated and unvaccinated control animals after challenge with virulent IBR virus. IBR virus isolated (+/-) from animals Animal No. on days post challenge 3 6 9 12 15 Controls 9 - + + + - 22 - + + - - 32 - + + + - 64 - + + + - Vaccinates dose 10 7 - 3 1 - + + - - 20 - + + - - 25 - + + - - 36 - + + + - Vaccinates dose 10 80 7 - + + - - 30 - - - - - 33 - + + + - 69 - + + - - - 118 - Table 5. Vaccinated animals demonstrate reduced clinical signs of IBR. Clinical scores post challenge Animal Attitude* Ulcers 0 Serious Mucopurulent Temperature 6 No. Discharge 0 Discharge d Controls 9 5 3 11 5 3 22 2 2 12 3 1 32 5 3 11 0 4 64 6 3 11 1 1 GMS 4.5 2.8 11.3 2.3 2.3 Vaccinates dose lO 73 1 0 2 1 0 0 20 0 1 3 0 0 25 0 2 6 2 0 36 f 6 2 1 13 0 GMS 1.5 1.8 2.8 * 2.3 0 Vaccinates dose 10 80 7 2 1 0 0 30 2 2 2 0 33 2 0 0 0 69 2 0 0 0 GMS 2 0.8 * 0.5 0 Days with depressed attitude. Number of ulcers. Days with serous discharge. Days with mucopurulent discharge. Days with > 2°F above baseline temperature. Animal exhibited mucopurulent discharge on the day of challenge and for 13 days post challenge. Statistically greater than controls (p<0.05) Animals were observed daily for 13 days post challenge for clinical signs of IBR infection. Clinical disease was evaluated with respect to attitude, the number of ulcers, extent of serious and mucopurulent discharge and the number of days with elevated temperature. The results presented in Table 5 show that vaccinated animals exhibited less severe disease than did unvaccinated control animals. Control animals showed clinical depression ("Attitude" in Table 5) for 4.5 days compared with 1 to 1.5 days for vaccinated animals. The amount and extent of serous discharge was substantially reduced in both vaccinate groups compared with controls. The extent of mucopurulent discharge was also reduced in vaccinated animals, although to a lesser degree. However, vaccinate animal #36 did have mucopurulent discharge on the day of challenge and is not consistent with the results for other vaccinates. None of the vaccinates exhibited temperatures of ≥2°F above baseline. In contrast, all control animals exhibited elevated temperatures of ≥2°F over baseline and 2 of 4 control animals had temperatures of 104°F and above. Vaccination of calves with inactivated S-IBR-037 vaccine protected the animals against virulent wild- type IBR virus challenge. Virus neutralization titers were statistically greater in vaccinated than in control animals. An anamnestic response in antibody titer was observed 7 days post challenge, indicating the development of humoral memory response. Except for 7 days post challenge, neutralization titers between the 10 7 - 3 and lO 8 - 0 vaccinate groups were not statistically different. Fewer vaccinated animals shed virulent challenge virus than control animals. These results suggest that virulent IBR virus is cleared more rapidly in vaccinated than in unvaccinated animals. Clinical symptoms of IBR virus infection were also reduced in vaccinated animals. After challenge, both vaccinate groups exhibited fewer days of depressed attitude, reduced serous discharge, and no elevated temperature compared with controls. In order to show that gG antibody is produced in vaccinated calves following exposure to wild-type virus, serum samples taken pre- and post-exposure to wild-type viruses were subjected to the ELISA assay. Samples taken at the day of challenge and at 13 days post-challenge were analyzed. As seen in Table 6, the post-challenge absorbance readings for gG increase for each animal (ratio of > 1.0) , indicating that within 13 days of infection a detectable immune response to gG is present. Table 6. Detection of antibody to gG in serum of animals vaccinated with S-IBR-037 and challenged with wild type. Animal No. Ratio of pre- vs. post challenge 3 Controls 9 1.22 22 1.96 32 1.87 64 2.19 Vaccinates dose ιo 7 - 3 1 1.39 20 1.40 25 1.84 36 1.18 Vaccinates dose 7 1.19 30 1.29 33 1.52 69 2.66 a Animals were challenged with 10 7-6 PFU of wild type IBR virus. Pre-challenge serum from day of challenge, post-challenge serum from 13 days post challenge. Data reflects the average of the ratio of absorbance readings for three independent ELISA determinations. Example 10 S - IBR- 038 S-IBR-038 is an IBR virus that has two deletions in the short unique region of the genome. The first deletion is. approximately 2500 base pairs and begins in the Hindlll K fragment approximately 1750 base pairs downstream of the Hindlll 0/HindIII K junction and extends back through that junction. This deletion removes the US2 gene. The second deletion is approximately 294 base pairs and begins in the Hindlll K fragment approximately 3900 base pairs downstream of the Hindlll K/Hindlll 0 junction and extends back toward that junction. This deletion removes amino acids 261 to 359 of the gG gene. S-IBR-038 resulted from the removal of the marker gene from S-IBR-035 (see above) . This was accomplished by digestion of S-IBR-035 with Xbal as described in the DIRECT LIGATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. The structure of S-IBR-035 was confirmed by restriction enzyme analysis with Hindlll, BamHI and Xbal. Example 11 Glycoprotein E gene Deletion of the PRV gl gene has been shown to be valuable both as an attenuating lesion and a negative serological marker (3,42) . In the studies described below the unique short region of infectious bronchitis virus virus was shown to contain a gene homologous to the gl gene of PRV. The sequence of 2038 base pairs of the IBR unique short region, starting approximately 1325 base pairs upstream of the Hindlll K/Hindlll F junction in the Hindlll K fragment was determined. This region was found to contain an ORF coding for 617 amino acids translated in the direction away from the Hindlll K/Hindlll O junction (see Figure 1). The ORF is 70.5% G+C and encodes a protein with a predicted molecular weight of approximately 88,980. Comparison of the sequence of the predicted protein with sequences of gene products of HSV-1, VZV, and PRV in the unique short region indicated that this ORF is homologous to the herpesvirus gE gene (see Figures 16A-16B) . The DNA encoding the gE gene has been cloned in two plasmids, PSY1644 and PSY1645. The amino-terminal half of the gene (encoding amino acids 1-276) was cloned as an approximately 2300 base pair fragment resulting from a partial Smal digest of wild type S-IBR-000 (Cooper Strain) DNA. This fragment was inserted into the plasmid pSP64 to yield PSY164 . This plasmid, designated PSY1644, was deposited on July 16, 1991 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. 68651. The carboxyl-terminal half of the gene (encoding amino acids 277-617) was cloned as an approximately 2400 base pair Smal fragment. The fragment was inserted into the plasmid pSP64 to yield PSY1645. This plasmid, designated PSY1645, was deposited on July 16, 1991 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. 68650. These plasmids may be used-,to confirm the sequence of the gE gene. Example 12 Pseudorabies virus expressing IBR virus gE A pseudorabies virus analogous to S-PRV-160 may be constructed for the purpose of expressing the IBR virus gE. This may be accomplished by inserting the gene coding for IBR virus gE into S-PRV-002 (U.S. Patent No. 4,877,737) . Such an expression vector may be constructed utilizing the IBR virus gE plasmid described in the methods section, pseudorabies virus S-PRV-002 and the restriction enzyme Xbal in the DIRECT LIGATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. Viruses resulting from this procedure may be screened by digestion with Xbal for the presence of the Xbal band containing the IBR virus gE gene. The gE protein expressed from this vector may be used as an antigen to identify antibodies directed against the wild type virus as opposed to antibodies directed against gE deleted viruses. This virus may also be utilized as an antigen for the production of gE specific monoclonal antibodies. Such antibodies are useful in the development of diagnostic tests specific for the gE protein. Monoclonal antibodies may be generated in mice utilizing this virus according to the PROCEDURE FOR GENERATING MONOCLONAL ANTIBODIES. Example 13 Glycoprotein E deleted IBR viruses The HOMOLOGY VECTOR 536-03.5 was used to generate various gE-deleted IBR viruses. Utilizing the general strategy described in CONSTRUCTION OF DELETION VIRUSES, a gE deletion of approximately 1410 base pairs (amino acids 77-547) was introduced into two different IBR virus backbones, S-IBR-000 (Cooper Strain) and S-IBR- 037. The virus resulting from the S-IBR-000 parent contains the gE deletion alone. The virus resulting from the S-IBR-037 parent contains the gE deletion in conjunction with the US2 and gG deletions. The lacZ marker gene may be removed from these viruses utilizing the procedures outlined in the methods section. These gE-deleted viruses are of great value as IBR vaccines. Their combination of different deletions will provide the varying degrees of attenuation which are required for a superior vaccine. These viruses will also provide a negative serological marker which may be used to distinguish vaccinated from infected animals. The virus containing both gG and gE deletions should be of even greater value by having two negative markers. The availability of two negative markers permits one marker to be used as a confirmatory test, greatly increasing the reliability of such a diagnostic determination. Example 14 S-IBR-004 S-IBR-004 is an IBR recombinant virus carrying an inserted foreign gene, Tn5 NEO (aminoglycoside 3'- phosphotransferase) gene, under the control of the pseudorabies virus (PRV) glycoprotein X promoter. To construct this virus, the Hindlll K DNA fragment from wild type IBR virus was cloned into the plasmid pSP64 at the Hindlll site. This plasmid was designated pSY524. A map of the Hindlll K fragment is shown in Figure 19. The DNA from the Xhol site to the Hindlll site and containing the Ndel site from pSY524 was cloned into plasmid pSP65 and called pSY846. The Ndel to EcoRI fragment was removed from pSY846 by digestion with Ndel and EcoRI restriction enzymes, followed by POLYMERASE FILL-IN REACTION and LIGATION. The resulting plasmid was called pSY862. The plasmid pNEO (P.L. Biochemicals, Inc.) contains the aminoglycoside 3' -phosphotransferase (NEO) gene and confers resistance to ampicillin and neomycin on E. coli hosts. The coding region of this gene (Bglll-BamHI fragment) was isolated and cloned between the PRV gX promoter and the HSV-TK poly A sequence in a plasmid called pSY845. The NEO gene construct in pSY845 was excised with Hindlll, made blunt ended by the POLYMERASE FILL-IN REACTION, and cloned into the Sad site of plasmid pSY862. The final product was called pSY868. Wild type IBR DNA was mixed with pSY868 DNA and the mixture was transfected into rabbit skin cells to generate recombinant IBR. The recombinant IBR virus carrying a functional NEO gene was then isolated and purified according to the SELECTION OF G418 RESISTANT IBR VIRUS method. S-IBR-004 recombinant IBR was shown to express the NEO gene by the fact that cells infected with this virus were resistant to the toxicity of G418. A detailed map of the plasmid construction is shown in Figure 19. The structure of S-IBR-004 is also shown in Figure 19. S- IBR-004 was deposited on May 23, 1986 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. VR 2134. Example 15 S-IBR-008 S-IBR-008 is an IBR virus that has a deletion in the short unique region, and an insertion of the bovine rotavirus glycoprotein 38 (g38) gene in the Xbal site in the long unique region. The Xba I site is located in the intergenic region upstream of the lactency- related transcripts promoter and downstream of a potential ORF. The bovine rotavirus g38 gene was cloned utilizing the METHOD FOR cDNA CLONING BOVINE ROTAVIRUS g38 GENE. The bovine rotavirus g38 gene was then engineered to contain herpesvirus regulatory signals as shown in Figure 20. This was accomplished by cloning the g38 gene BamHI fragment contained in pSY1053 between the BamHI and Bglll sites in pSY1052. The resulting plasmid, pSY1023, contained the PRV gX promoter in front of the g38 gene, and the HSV-1 TK polyadenylation signal behind the g38 gene. The entire construct was flanked by Xbal sites to allow for the insertion of the Xbal fragment into IBR by direct ligation. S-IBR-004 was the starting virus for the generation-of S-IBR-008. S-IBR-004 DNA and pSY1023 DNA were mixed together, cut with Xbal, and transfected into rabbit skin cells according to the DIRECT LIGATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. The transfection stock was screened for recombinant virus by the ANTIBODY SCREEN FOR RECOMBINANT HERPESVIRUS procedure using antibodies prepared against the rotavirus g38 protein. One of the viruses purified by this screen was S-IBR- 008, which has the following characteristics. It contains the rotavirus g38 gene plus the plasmid DNA inserted into the Xbal site in the long unique region of the virus genome, but no longer contains the NEO gene of parent S-IBR-004 in the unique short region.. In fact, a small deletion was created in the unique short region at the location of the NEO gene, as evidenced by the absence of an Xbal site at this location in S-IBR-008. S-IBR-008 was shown to be expressing the rotavirus g38 gene by analysis of RNA transcription in infected cells, and by the ANTIBODY SCREEN FOR RECOMBINANT HERPESVIRUS procedure using antibodies specific for the g38 gene. S-IBR-008 was deposited on June 18, 1986 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. VR 2141. The structure of S-IBR-008 is shown in Figure 20. Example 16 S- IBR- 018 S-IBR-018 is an IBR virus that has three foreign genes inserted: the E. coli beta-galactosidase gene and the neomycin resistance gene in the Xbal site in the unique long region, and the parainfluenza type 3 (PI-3) virus (ATCC No. VR-281) hemagglutinin gene (HN) in the Hindlll site in the unique long region adjacent to the Xba I site. The Xba I site is located in the intergenic region upstream of the lactency-related transcripts promoter and downstream of a potential ORF. The Hind III site is located within a potential ORF upstream of the latency-related transcripts. For cloning the PI-3 HN gene, the SF-4 strain of PI-3 was grown in MADIN-DARBY bovine kidney (MDBK) cells in culture and RNA was extracted from infected cells. The RNA was used in a reverse transcription protocol as outlined in the cDNA CLONING procedure using poly-dT as primer for reverse transcriptase. From this procedure, a series of clones was obtained that comprised parts of the genome of the PI-3 virus. The location of the gene for the human PI-3 HN gene has been published (25,26) and this information was used to locate the gene in applicants' bovine PI-3 clones. The entire open reading frame of the bovine PI-3 HN gene was sequenced by applicants and is given in Figures 21A-21B. The HSV ICP4 promoter was used to express the PI-3 HN gene and the HSV TK poly-A signal was used to terminate transcription. The engineering of this construct was done as shown in Figures 22A-22C. The construct contained (5' to 3') the HSV ICP4 promoter, the ICP4 TATA box, the ICP4 cap site, a fusion within the ICP4 5' untranslated region to the PI-3 HN gene at the Hhal site, the HN gene start codon, the HN structural gene, the HN stop codon, a fusion within the HN 3' untranslated region to the HSV TK untranslated 3' region, and the HSV TK poly-A signal sequence. This plasmid also contained the beta-galactosidase (lacZ) gene under the control of the PRV gX promoter with the gX poly-A termination signal, as well as the neomycin resistance gene under the control of the gX promoter with the TK poly-A termination signal. These latter two genes were cloned in tandem at the Xbal site in BamHI-C fragment (Figures 22A-22C) . This BamHI-C fragment contained the homology regions for use in the DNA TRANSFECTION FOR GENERATING RECOMBINANT VIRUS procedure. After the transfection step in the procedure, the resulting recombinant virus from the transfection stock was selected for by the SELECTION OF G418 RESISTANT IBR VIRUS procedure, followed by the BLUOGAL ™ SCREEN FOR RECOMBINANT HERPESVIRUS procedure, and subsequently analyzed for the insertion of the PI-3 HN gene by the SOUTHERN BLOTTING OF DNA procedure. The virus that resulted from this screening was designated S-IBR-018. S-IBR-018 was deposited on July 21, 1987 pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. under ATCC Accession No. VR 2180. The structure of S-IBR-018 is shown in Figures 22A-22C. Example 17 S- IBR- 019 S-IBR-019 is an IBR virus that has three foreign genes inserted: the E. coli beta-galactosidase (lacZ) gene and the neomycin resistance gene in the Xbal site in the unique long region, and the parainfluenza type 3 (PI-3) virus fusion gene (F) in the Hindlll site in the long unique region adjacent to the Xbal site. For cloning the PI-3 F gene, the SF-4 strain of PI-3 was grown in MDBK cells in culture and RNA was extracted from infected cells. The RNA was used in a reverse transcription protocol as outlined in the cDNA CLONING procedure using poly-dT as primer for reverse transcriptase. From this procedure, a series of clones was obtained that comprised parts of the genome of the PI-3 virus. The location of the gene for the Sendai virus F gene has been published (27) and this comparative sequence information was used to locate the homologous gene in applicants' bovine PI-3 clones. The HSV alpha-4 promoter was used to express the PI-3 F gene and the HSV TK poly-A signal was used to terminate transcription. The construct contained (5' to 3') the HSV alpha-4 promoter, the alpha-4 TATA box, the alpha-4 cap site, a fusion in the alpha-4 5' untranslated region to the PI-3 F gene, the F start codon, the F structural gene, the F stop codon, a fusion in the F 3' untranslated region to the HSV TK 3' untranslated region, and the TK poly-A signal sequence. This plasmid also contained the beta-galactosidase (lacZ) gene under the control of the PRV gX promoter with the gX poly-A termination signal, as well as the neomycin resistance gene under the control of the gX promoter with the TK poly-A termination signal. These latter two genes were cloned in tandem at the Xbal site in BamHI-C fragment (Figures 23A-23C) . This BamHI-C fragment contained the homology regions for use in the DNA TRANSFECTION FOR GENERATING RECOMBINANT VIRUS procedure. After the transfection step in the procedure, the resulting recombinant virus from the transfection stock was selected for by the SELECTION OF G418 RESISTANT HERPESVIRUS procedure, followed by the BLUOGAL" SCREEN FOR RECOMBINANT HERPESVIRUS procedure, and subsequently analyzed for the insertion of the PI-3 F gene by SOUTHERN BLOTTING OF DNA procedure. The virus that resulted from this screening was designated S-IBR-019. The structure of S-IBR-019 is shown in Figures 23A-23C. Example 18 S-IBR-032 S-IBR-032 is an IBR virus that has two foreign genes inserted: the Escherichia coli beta-galactosidase (lacZ) gene with the bovine viral diarrhea virus (BVDV) g53 gene fused to the lacZ C-terminus and inserted in the long unique region at the Xbal restriction endonuclease site. For cloning the BVDV g53 gene, the Singer strain of BVDV was grown in MADIN-DARBY bovine kidney (MDBK) cells in culture and the RNA was extracted from infected cells. The RNA was used in a reverse transcriptase procedure as outlined in the cDNA CLONING procedure using random primers for reverse transcriptase. From this procedure, a series of clones was obtained that comprised parts of the genome of BVDV. The location of the gene for BVDV g53 has been published (66) and this comparative sequence information was used to locate the homologous gene in the applicant's BVDV clones. The PRV gX promoter was used to express lacZ with a region of BVDV g53 fused to the C-terminus, and the PRV poly-A signal was used to terminate transcription. A plasmid construct was engineered that contained (5' to 3' ) the PRV gX promoter and then the coding region consisting of amino acid codons 1-7 of the PRV gX gene, 10-1024 of the Escherichia coli lacZ gene, and 684-758 of the BVDV major open reading frame, and the PRV poly- A sequence. This lacZ fusion gene cassette was then excised from the plasmid vector at the flanking Xbal sites and cloned into the unique Xbal site in IBR-002 using the in vitro ligation method described in CONSTRUCTION OF DELETION VIRUSES. After the transfection step in DNA TRANSFECTION FOR GENERATING RECOMBINANT VIRUS procedure, the resulting recombinant virus was screened and isolated from the transfection stock using the BLUOGAL ™ SCREEN FOR RECOMBINANT HERPESVIRUS procedure, and subsequently analyzed for the insertion of the BVDV g53 region by SOUTHERN BLOTTING OF DNA procedure. The virus that resulted from this screening was designated S-IBR-032. Example 19 S-IBR-039 S-IBR-039 is an IBR virus that has three deletions in the short unique region of the genome. The first deletion is approximately 2500 base pairs and begins in the Hindlll K fragment approximately 1750 base pairs downstream of the Hindlll 0/ Hindlll K junction and extends back through that junction. This deletion removes the US2 gene. The second deletion is approximately 1230 base pairs and begins in the Hindlll K fragment approximately 3900 base pairs downstream of the Hindlll O/Hind K junction and extends back toward that junction. This deletion removes amino acids 1 to 361 of the gG gene. The third deletion is approximately 1410 base pairs and removes amino acids 77-547 of the gE gene. S-IBR-039 was derived from S-IBR-037. This was accomplished utilizing the homology vector 536-03.5 (see MATERIALS AND METHODS) and virus S-IBR-037 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. The transfection stock was screened by the SCREEN FOR RECOMBINANT HERPESVIRUS EXPRESSING ENZYMATIC MARKER GENES. The result of blue plaque purification was the recombinant virus designated S-IBR-039. This virus was characterized by restriction mapping and the SOUTHERN BLOTTING DNA procedure. This analysis confirmed the insertion of the β-galactosidase (lacZ) marker gene and the deletion of approximately 1230 base pairs of the gG gene. It was also confirmed that an approximately 1410 base pair deletion has occurred in the region of the gE gene (see above) . S-IBR-039 contains a deletion in the IBRV US2 gene which not only attenuates the virus but also has an unexpected effect of rendering the virus fetal safe. Therefore, S-IBR-039 can be formulated into a vaccine which is superior from other IBRV vaccines in that in addition to being safe and effective in protecting cattle from infections with IBR virus, it is also safe for use in pregnant animals. Such vaccine comprises an effective immunizing amount of S-IBR-039 and a suitable carrier. This vaccine may contain either inactivated or live infectious bovine rhinotracheitis virus S-IBR-039. Suitable carriers for the infectious bovine rhinotracheitis virus are well known in the art and include proteins, sugars, etc. One example of such a suitable carrier is a physiologically balanced culture medium containing one or more stabilizing agents such as stabilized, hydrolyzed proteins, lactose, etc. In general, the vaccine of this invention contains an effective immunizing amount of S-IBR-039 virus from about 10 3 to 10 8 PFU/dose. Preferably, the effective immunizing amount is from about 10 4 to 10 7 PFU/dose for the live vaccine. Preferably, the live vaccine is created by taking tissue culture fluids and adding stabilizing agents such as stabilized, hydrolyzed proteins. Preferably, the inactivated vaccine uses tissue culture fluids directly after inactivation of the virus. The present invention also provides a method of immunizing an animal, particularly a bovine, against disease caused by infectious bovine rhinotracheitis virus which comprises administering to the animal an effective immunizing dose of the vaccine comprising S- IBR-039. The vaccine may be administered by any of the methods well known to those skilled in the art, for example, by intramuscular, subcutaneous, intraperitoneal or intravenous injection. Alternatively, the vaccine may be administered intranasally or orally. Another notable characteristic of S-IBR-039 is that it contains deletions in the gG and gE genes so that no functional gG or gE is produced upon viral replication. Said deletions in gG and gE, therefore, provides two negative serological markers for differentiating the virus from naturally-occurring IBR virus. Accordingly, the present invention also provides a method for distinguishing an animal vaccinated with the infectious bovine rhinotracheitis virus S-IBR-039 from an animal infected with naturally-occurring infectious bovine rhinotracheitis virus. This method comprises analyzing a sample of a body fluid from the animal for the presence of IBRV gG or gE and at least one other antigen which is normally expressed in an animal infected by a naturally-occurring infectious bovine rhinotracheitis virus and determining whether the antigen and gG or gE are present in the body fluid. The presence of the antigen and the absence of gG or gE in the body fluid is indicative of an animal vaccinated with the vaccine and not infected with a naturally- occurring infectious bovine rhinotracheitis virus. The presence of the antigen and of gG or gE in the body fluid may be determined by various methods, for example, by detecting in the body fluid antibodies specific for the antigen and for gG or gE. S-IBR-039 has been deposited pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A. A study was conducted to determine the serological and clinical response of young calves following intramuscular administration of S-IBR-037 and S-IBR- 039. These results are presented in Table 7. Three calves were inoculated intramuscularly with 10 7 PFU of S-IBR-037 and S-IBR-039. All calves inoculated with S- IBR-037 and S-IBR-039 developed significant neutralizing antibody to IBR virus above the antibody levels of the contact control. Attenuation of S-IBR- 039 was demonstrated by the absence of clinical signs in animals inoculated with the S-IBR-039 virus. Table 7: Serum Neutralizing Antibody Titers in Young Calves Following Vaccination with S-IB&-037 and S-IBR-039 Expressed as reciprocal of dilution Example 20 S- IBR- 045 S-IBR-045, a recombinant IBR virus with deletions in the Tk, US2, gG and gE genes may be constructed in the following manner. S-IBR-045 would be derived from S- IBR-039 (see example 19) through the construction of two intermediate viruses. The first intermediate virus, S-IBR-043, would be constructed utilizing the homology vector 591-46.12 (see MATERIALS AND METHODS) and virus S-IBR-039 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. The transfection stock would be screened by the SCREEN FOR RECOMBINANT HERPESVIRUS EXPRESSING ENZYMATIC MARKER GENES for a white plaque recombinant virus (uidA substrate) . The resulting virus would have deletions of the Tk, US2, gG and gE genes and insertion of lacZ gene in the gE gene deletion. Finally, S-IBR-045 would be constructed, utilizing the homology vector 523-78.72 (see MATERIALS AND METHODS) and virus S-IBR-044 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. The transfection stock would be screened by the SCREEN FOR RECOMBINANT HERPESVIRUS EXPRESSING ENZYMATIC MARKER GENES for a white plaque recombinant virus (lacZ substrate) . This virus will be useful as a vaccine to protect cattle from infection with IBR. The combination of deletions will provide the appropriate attenuation which is required for a superior vaccine. This virus will also provides two negative serological markers which may be used to distinguish vaccinated from infected animals. The availability of two negative markers permits one marker to be used as a confirmatory test, greatly increasing the reliability of such a diagnostic determination. Example 21 S - IBR- 046 S-IBR-046, a recombinant IBR virus with deletions in the Tk, US2, gG and gE genes and the bovine viral diarrhea virus g53 gene inserted in place of the gE gene, may be constructed in the following manner. S- IBR-046 would be derived from S-IBR-044 (see example 20) . It would be constructed utilizing the homology vector 523-78.72, into which the bovine viral diarrhea virus g53 gene has been inserted, and virus S-IBR-044 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. Note that the bovine diarrhea virus gene would be cloned using techniques described in the methods section. The g53 gene would be placed under the control of the HCMV immediate early promoter. The transfection stock would be screened by the SCREEN FOR RECOMBINANT HERPESVIRUS EXPRESSING ENZYMATIC MARKER GENES for a white plaque recombinant virus (lacZ substrate) . This virus will be useful as a vaccine to protect cattle from infection with IBR virus and bovine viral diarrhea virus. Example 22 S-IBR-047 S-IBR-047, a recombinant IBR virus with deletions in the Tk, US2, gG and gE genes and the parainfluenza type 3 genes for hemagglutinin and fusion protein inserted in place of the gE gene may be constructed in the following manner. S-IBR-047 would be derived from S- IBR-044 (see example 20) . It would be constructed utilizing the homology vector 523-78.72, into which the parainfluenza type 3 virus hemagglutinin and fusion genes has been inserted, and virus S-IBR-044 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. Note that the parainfluenza type 3 virus genes would be cloned using techniques described in the methods section. The transfection stock would be screened by the SCREEN FOR RECOMBINANT HERPESVIRUS EXPRESSING ENZYMATIC MARKER GENES for a white plaque recombinant virus (lacZ substrate) . This virus will be useful as a vaccine to protect cattle from infection with IBR virus and parainfluenza type 3 virus. Example 23 S-IBR-049 S-IBR-049, a recombinant IBR virus with deletions in the Tk, US2, gG and gE genes and the bovine respiratory syncytial virus genes for the attachment, nucleocapsid and fusion proteins inserted in place of the gE gene may be constructed in the following manner. S-IBR-049 would be derived from S-IBR-044 (see example 20) . It would be constructed utilizing the homology vector 523- 78.72, into which the bovine respiratory syncytial virus attachment nucleocapsid and fusion genes had been inserted and virus S-IBR-044 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. Note that the bovine respiratory syncytial virus genes would be cloned using techniques described in the methods section. The attachment protein gene would be placed under the control of the HCMV immediate early promoter and the fusion and nucleocapsid protein genes would be placed under the PRV gX promoter. The transfection stock would be screened by the SCREEN FOR RECOMBINANT HERPESVIRUS EXPRESSING ENZYMATIC MARKER GENES for a white plaque recombinant virus (lacZ substrate) . This virus will be useful as a vaccine to protect cattle from infection with IBR virus and bovine respiratory syncytial. Example 24 S-IBR-051 S-IBR-051, a recombinant IBR virus with deletions in the Tk, US2, gG and gE genes and the Pasteurella haemolytica genes for the leukotoxin and iron regulated outer membrane proteins inserted in place of the gE gene, may be constructed in the following manner. S- IBR-051 would be derived from S-IBR-044 (see example 20) . It would be constructed utilizing the homology vector 523-78.72, into which the Pasteurella haemolytica leukotoxin and iron regulated outer membrane protein genes had been inserted, and virus S- IBR-044 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. Note that the Pasteurella haemolytica genes would be cloned using the techniques described in the methods section. The leukotoxin gene would be placed under the control of the HCMV immediate early promoter and the iron regulated outer membrane protein genes would be placed under the PRV gX promoter. The transfection stock would be screened by the SCREEN FOR RECOMBINANT HERPESVIRUS EXPRESSING ENZYMATIC MARKER GENES for a white plaque recombinant virus (lacZ substrate) . This virus will be useful as a vaccine to protect cattle from infection with IBR virus and Pasteurella haemolytica . Example 25 S- IBR- 052 S-IBR-052 is an IBR virus that has three deletions in the unique short region of the genome. The first deletion is approximately 2500 base pairs and begins in the Hindlll K fragment approximately 1750 base pairs downstream of the Hindlll 0/HindIII K junction and extends back through that junction. This deletion removes the US2 gene. The second deletion is approximately 1230 base pairs and begins in the Hindlll K fragment approximately 3900 base pairs downstream of the Hindlll 0/HindIII K junction and extends back toward that junction. This deletion removes amino acids 1 to 361 of the gG gene. The third deletion is approximately 1410 base pairs and removes amino acids 77-547 of the gE gene. S-IBR-052 was derived from S-IBR-039. This was accomplished utilizing the homology vector 523-78.72 (see Materials and Methods) and virus S-IBR-039 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. The transfection stock was screened by the BLUOGAL SCREEN FOR RECOMBINANT HERPESVIRUS. The result of white plaque purification was the recombinant virus designated S-IBR-052. This virus was characterized by restriction mapping and by PCR analysis. This analysis confirmed the deletion of the /3-galactosidase (lacZ) marker gene and the deletion of approximately 1410 base pairs of the gE gene. It was also confirmed that deletions present in the parent S-IBR-039 virus were present in S-IBR-052. S-IBR-052 contains a deletion in the IBRV US2 gene which not only attenuates the virus but also has an unexpected effect of rendering the virus fetal safe. Therefore, S-IBR-052 can be formulated into a vaccine which is superior from other IBRV vaccines in that in addition to being safe and effective in protecting cattle from infections with IBR virus, it is also safe for use in pregnant animals. Another notable characteristic of S-IBR-052 is that it contains deletions in the gG and gE genes so that no functional gG or gE is produced upon viral replication. Said deletions in gG and gE, therefore, provides two negative serological markers for differentiating the virus from wild-type virus. S-IBR-052 on February 4, 1994 was deposited pursuant to the Budapest Treaty on the International Deposit of Microorganisms for the Purposes of Patent Procedure with the Patent Culture Depository of the American Type Culture Collection, 12301 Parklawn Drive, Rockville, Maryland 20852 U.S.A under ATCC Accession No. VR 2443. A study evaluating the safety of the S-IBR-052 vaccine demonstrates the absence of a clinical response in young calves following intranasal vaccination with S- IBR-052 when compared to S-IBR-000 (Cooper strain) . Four weaned, IBRV antibody negative calves per group were inoculated intranasally with 2 X 10 5 PFU of S-IBR- 052 or 4 X 10 5 PFU of S-IBR-000 (Cooper strain) . Calves were observed daily over a 4-week period for increased body temperatures, respiratory disease, and ulcers of the nasal mucosa. As shown in Table 8, S- IBR-000 (Cooper) showed significant clinical signs whereas the S-IBR-052 showed no fibrile signs or nasal ulcers and a reduced duration of respiratory signs. Since intranasal is the natural route of infection for IBR virus, it is significant that significant reduction in clinical signs are shown during S-IBR-052 vaccination compared to S-IBR-000.(Cooper) vaccination. Table 8: Clinical Response of Young Calves Following Intramuscular and Intranasal Vaccination with S-IBR-052 Virus Route of Febrile Repiratory Nasal Construct Innoculati Signs Signs Ulcers (Days (Numbers of (Number of > 104.5 F° days) days) S-IBR-000 Intranasal 4.7 20 4 (Cooper) S-IBR-052 Intranasal .75 12 0 Example 26 Shipping Fever Vaccine Shipping fever or bovine respiratory disease (BRD) complex is manifested as the result of a combination of infectious diseases of cattle and additional stress related factors (70) . Respiratory virus infections, augmented by pathophysiological effects of stress, alter the susceptibility of cattle to Pasteurella organisms by a number of mechanisms. Control of the viral infections that initiate BRD as well as control of the terminal bacterial pneumonia is essential to preventing the disease syndrome (71) . The major infectious disease pathogens that contribute to BRD include but are not limited to infectious bovine rhinotracheitis virus (IBRV) , prarmfluenza type 3 virus (PI-3) , bovine viral diarrhea virus (BVDV), bovine respiratory syncytial virus (BRSV) , and Pasteurella haemolytica (71) . Through out this application, applicants have disclosed examples of recombinant IBR viruses that can be used as a vaccine to immunize animals against the various components of BRD. The present invention also encompasses vaccines which are directed not only to one particular component of BRD but to a combination of several components responsible for the disease, so that the array of pathogens responsible for BRD can be controlled with a single immunization. For example, a vaccine directed to several pathogens responsible for BRD can be formulated as follows: first, the various IBRV vectored antigens from BRSV, PI-3, BVDV and P. haemolytica can be combined in a single vaccine dose; secondly, the individual antigens from BRSV, PI-3, BVDV and P. haemolytica can be simultaneously cloned into the same IBR virus backbone. A preferred embodiment of the IBR virus backbone for vectoring one or more antigens from BRSV, PI-3, BVDV and P. haemolytica are S-IBR-039 (see example 19) and S- IBR-052(see example 25), both of which contain deletions of the US2, gG, and gE genes. S-IBR-039 is particularly appropriate as a backbone virus for purposes of vectoring said antigens. S-IBR- 039 is a superior vaccine since deletions of the US2 gene provides the unexpected property of fetal safety when used to vaccinate pregnant animals. In addition, deletions of the gG and gE genes provide multiple negative markers useful in distinguishing vaccinated from infected animals. Using S-IBR-039 virus as a backbone, the following viruses have been constructed which contains BRSV, PI- 3, or BVDV antigens: S-IBR-053: S-IBR-053 has been constructed by inserting the ■• gene for BVDV g53 into the gE deletion site of S-IBR-039. Expression of the BVDV g53 protein from S-IBR-053 grown in cell culture has been confirmed by immunofluorescence assay indicating that the correct immune reactive epitope of BVDV g53 is present. S-IBR-054: S-IBR-054 has been constructed by inserting the genes for PI-3 F and HN into the gE deletion site of S-IBR-039. Expression of the PI- 3 HN protein from S-IBR-054 grown in cell culture has been confirmed by immunofluorescence assay indicating that the correct immune reactive epitope of PI-3 HN is present. S-IBR-055: S-IBR-055 has been constructed by inserting the gene for BRSV F and N into the gE deletion site and inserting the gene for BRSV G into the gG deletion site of the S-IBR-039 backbone. S-IBR-059: S-IBR-059 has been constructed by inserting the gene for PI-3 F and HN into the gG deletion site and inserting the gene for BVDV g53 into the gE deletion site of the S-IBR-039 backbone. IBR viruses designated S-IBR-053, S-IBR-054, S-IBR-055 and S-IBR-059 are presented as examples of recombinant IBR viruses containing one or more antigens from PI-3, BVDV, BRSV, and Pasteurella haemolytica, which have been constructed using S-IBR-039 as a backbone virus. Applicants' present invention extends beyond these examples to cover any recombinant IBRV containing one or more antigens from PI-3, BVDV, BRSV and Pasteurella haemolytica which is constructed using S-IBR-039 or S- IBR-052 as a backbone virus. The antigens to be inserted is selected from the following group: PI-3 HN and F, BVDV g53, BRSV F, N and G, and Pasteurella haemolytica leukotoxin. The following sites in S-IBR- 039 or S-IBR-052 are used as insertion sites for these antigens : the gE deletion site, gG deletion site, or US2 deletion site of S-IBR-039 or S-IBR-052; Hind III or Xba I sites within the unique long region of IBRV contained on a 3900 base pair Apa I fragment (Homology vector 691-096.2) within the bamHI C fragment of IBRV. The Xba I site is located in the intergenic region upstream of the latency-related transcripts promoter and downstream of a potential ORF. The Hind III site is located within a potential ORF upstream of the latency-related transcripts; or 500 base pair EcoRV deletion within the repeat region of IBRV. Note that if a combination of antigens are inserted into one or more backbone viruses, this limits the number of IBR viruses required for BRD protection. The following are several examples of how antigens from PI-3, BVDV, and BRSV are inserted into a backbone IBR virus, such as the S-IBR-039 backbone and the S-IBR-052 backbone. 1. Genes encoding BVDV g53, PI-3 HN and F, and BRSV F, N, and G are inserted in combination into the S-IBR-039 backbone or the S-IBR-052 backbon . 2. Genes encoding BVDV g53, BRSV F,N, and G are inserted in combination into the S-IBR-039 backbone or the S-IBR-052 backbone. 3. Genes encoding BRSV F, N, and G and PI-3 HN and F are inserted in combination into the S-IBR-039 backbone or the S-IBR-052 backbone.■ Each of the above three IBR viruses are engineered further to include Pasteurella haemolytica leukotoxin. The viruses described through out this section (example 26) can be used in combination as a vaccine against BRD. In addition, conventionally derived vaccines (killed virus, inactivated bacterins and modified live viruses) could be included with the recombinant multivalent vaccines as part of the BRD vaccine formulation should such vaccine components prove to be more effective. The present invention also provides a method for distinguishing an animal vaccinated with the vaccine comprising the infectious bovine rhinotracheitis viruses described in this section (example 26) . This method comprises analyzing a sample of a body fluid from the animal for the presence of gG or gE and at least one other antigen normally expressed in an animal infected by a naturally-occurring infectious bovine rhinotracheitis virus. The presence of the antigen and the absence of gG or gE in the body fluid is indicative of an animal vaccinated with the vaccine and not infected with a naturally-occurring IBR virus. The presence of the antigen and of gG or gE in the body fluid may be determined by various methods, for example, by detecting in the body fluid antibodies specific for the antigen and for gG or gE. Example 27 S-IBR-086 S-IBR-086 is an IBR virus that has three deletions in the short unique region of the genome and two foreign genes inserted into the unique long region of the genome. The deletions in the unique short are in the US2 gene, the gG gene, and the gE gene. The extent of these deletions are identical to those described for S- IBR-052 (Example 24) . The genes for the bovine viral diarrhea virus (BVDV) glycoprotein 53 (g53) (amno acids 1-394) under the control of the HCMV immediate early promoter and the E. coli uidA under the control of the PRV gX promoter were inserted into a Hindlll site within the BamHI C fragment of the IBRV genome (Figure 27) . S-IBR-086 was derived from S-IBR-052. This was accomplished utilizing the homology vector 746-21.4 and virus S-IBR-052 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. Homology vector 746-21.4 was constructed by inserting the HCMV IE promoter BVDV g53 gene and PRV gX promoter uidA gene into the unique Hindlll site of homology vector 691-096.2 (see Materials and Methods) . The BVDV g53 gene was isolated by CLONING OF BOVINE VIRAL DIARRHEA VIRUS g53 and g48 GENES. The transfection stock was screened by the SCREEN FOR RECOMBINANT HERPESVIRUS EXPRESSING ENZYMATIC MARKER GENES. The result of blue plaque purification was the recombinant virus designated S-IBR-086. This virus was characterized by restriction mapping and by PCR analysis. This analysis confirmed the insertion of the jβ-glucuronidase (uidA) marker gene and the insertion of the BVDV g53 gene. Expression of the BVDV g53 was confirmed by immunoprecipitation using mouse monoclonal antibody to BVDV g53 protein. It was also confirmed that deletions present in the parent S-IBR-052 virus were present in S-IBR-086. This virus is useful as a vaccine to protect cattle from infection with IBR virus and BVD virus. The deletion of the US2 gene attenuates the virus, and the deletions of the glycoproteins G and E genes from this virus provides two negative serological markers for distinguishing vaccinated from infected animals. S-IBR-069 S-IBR-069 is an IBR virus that has three deletions in the short unique region of the genome and two foreign genes inserted into the unique long region of the genome. The deletions in the unique short are in the US2 gene, the gG gene, and the gE gene. The extent of these deletions are identical to those described for S- IBR-052 (Example 24) . The genes for the bovine viral diarrhea virus (BVDV) glycoprotein 53 (g53) (amino acids 1-394) under the control of the HCMV immediate early promoter, BVDV g48 gene (amino acid 1-226) under the control of the PRV gX promoter, and the E. coli lacZ gene under the control of the HSV-1 TK promoter were inserted into a Hindlll site within the BamHI C fragment of the IBRV genome (Figure 27) . S-IBR-069 was derived from S-IBR-052. This was accomplished utilizing the homology vector 756-15.5A and virus S-IBR-052 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. Homology vector 756-15.5A was constructed by inserting the HCMV IE promoter BVDV g53 gene, PRV gX promoter BVDV g48 gene and HSV-1 TK promoter lac Z gene into the unique Hindlll site of homology vector 691-096.2 (see Materials and Methods) . The BVDV g53 and g48 genes were isolated by CLONING OF BOVINE VIRAL DIARRHEA VIRUS g53 and g48 GENES. The transfection stock was screened by the BLUOGAL™ SCREEN FOR RECOMBINANT HERPESVIRUS. The result of blue plaque purification was the recombinant virus designated S-IBR-069. This virus was characterized by restriction mapping and by PCR analysis. This analysis confirmed the insertion of the β-galactosidase (lacZ) marker gene and the insertion of the BVDV g53 gene and the BVDV g48 gene. Expression of the BVDV g53 was confirmed by immunoprecipitation using mouse monoclonal antibody to BVDV g48 protein It was also confirmed that deletions present in the parent S- IBR-052 virus were present in S-IBR-069. This virus is useful as a vaccine to protect cattle from infection with IBR virus and BVD virus. The deletion of the US2 gene attenuates the virus, an d the deletions of the glycoproteins G and E genes from this virus provides two negative serological markers for distinguishing vaccinated from infected animals. S-IBR-074 S-IBR-074 is an IBR virus that has three deletions in the short unique region of the genome and two foreign genes inserted into the unique long region of the genome. The deletions in the unique short are in the US2 gene, the gG gene, and the gE gene. The extent of these deletions are identical to those described for S- IBR-052 (Example 24) . The genes for the bovine viral diarrhea virus (BVDV) glycoprotein 53 (g53) (amino acids 1-394) under the control of the HCMV immediate early promoter, BVDV g48 gene (amino acids 1-226) under the control of the PRV gX promoter, and the E. coli lac Z gene under the control of the HSV-1 TK promoter were inserted into a Hindlll site within the BamHI C fragment of the IBRV genome (Figure 27) . The PRV gX signal sequence is fused in frame to the 5' end of the BVDV g53 gene S-IBR-074 was derived from S-IBR-052. This was accomplished utilizing the homology vector 756-35.38 and virus S-IBR-052 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. Homology vector 756-35.38 was constructed by inserting the HCMV IE promoter PRV gX signal/BVDV g53 gene, PRV gX promoter BVDV g48 gene and HSV-1 TK promoter lac Σ gene into the unique Hindlll site of homology vector 691-096.2 (see Materials and Methods) . The BVDV g53 and g48 genes were isolated by CLONING OF BOVINE VIRAL DIARRHEA VIRUS g53 and g48 GENES. The transfection stock was screened by the BLUOGAL™ SCREEN FOR RECOMBINANT HERPESVIRUS. The result of blue plaque purification was the recombinant virus designated S- IBR-074. This virus is useful as a vaccine to protect cattle from infection with IBR virus and BVD virus. The deletion of the US2 gene attenuates the virus, and the deletions of the glycoproteins G and E genes from this virus provides two negative serological markers for distinguishing vaccinated from infected animals. Example 28 S-IBR-071 S-IBR-071 is an IBR virus that has three deletions in the short unique region of the genome and two foreign genes inserted into the unique long region of the genome. The deletions in the unique short are in the US2 gene, the gG gene, and the gE gene. The extent of these deletions are identical to those described for S- IBR-052 (Example 24) . The genes for the bovine respiratory syncytial virus (BRSV) fusion (F) gene (amino acids 4-574) under the control of the HCMV immediate early promoter, BRSV attachment (G) gene (amnio acids 4-254) under the control of the PRV gX promoter, and the E-. coli lacZ gene under the control of the HSV-1 TK promoter were inserted into a Hindlll site within the BamHI C fragment of the IBRV genome (Figure 27) . S-IBR-071 was derived from S-IBR-052. This was accomplished utilizing the homology vector 746-82.5B and virus S-IBR-052 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. Homology vector 746-82.5B was constructed by inserting the HCMV IE promoter BRSV F gene, PRV gX promoter BRSV G gene, and HSV-1 TK promoter lacZ gene into the unique Hindlll site of homology vector 691-096.2 (see Materials and Methods) . The BRSV F and G genes were isolated by CLONING OF BOVINE RESPIRATORY SYNCYTIAL VIRUS FUSION PROTEIN AND NUCLEOCAPSID PROTEIN GENES. The transfection stock was screened by the BLUOGAL™ SCREEN FOR RECOMBINANT HERPESVIRUS. The result of blue plaque purification was the recombinant virus designated S-IBR-071. This virus is useful as a vaccine to protect cattle from infection with IBR virus and BRSV. The deletion of the US2 gene attenuates the virus, and the deletions of the glycoproteins G and E genes from this virus provides two negative serological markers for distinguishing vaccinated from infected animals. In an alternative embodiment of S-IBR-071 and S-IBR- 072, a recombinant IBR virus is constructed that has three deletions (the US2 gene, the gG gene, and the gE gene) in the unique short and insertions of the BRSV F and G genes and lacZ gene in the Hindlll site in the unique long and the BRSV N gene and uidA gene in the EcoRV site in the repeat region. The recombinant IBR viruses derived utilizing the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS from S-IBR-071 and a homology vector containing the BRSV N gene and uidA gene with appropriate promoters inserted at the EcoRV site of homology vector 769-73.1 (see Materials and Methods) . The transfection stock is screened by the SCREEN FOR RECOMBINANT HERPESVIRUS EXPRESSING ENZYMATIC MARKER GENES. The result of blue plaque purification is the recombinant IBR virus as described. S-IBR-072 S-IBR-072 is an IBR virus that has three deletions in the short unique region of the genome and two foreign genes inserted into the unique long region of the genome. The deletions in the unique short are in the US2 gene, the gG gene, and the gE gene. The extent of these deletions are identical to those described for S- IBR-052 (Example 24) . The genes for the bovine respiratory syncytial virus (BRSV) nucleocapsid (N) gene (amino acids 1-399) under the control of the PRV gX promoter, and the E. coli lacZ gene under the control of the HSV-1 TK promoter were inserted into a EcoRV site within the BamHI C fragment in the repeat region of the IBRV genome (Figure 27) . S-IBR-072 is derived from S-IBR-052. A homology vector is constructed by inserting PRV gX promoter BRSV N gene and HSV-1 TK promoter lacZ gene into the unique EcoRV site of homology vector 769-73.1 (see Materials and Methods) . The BRSV N gene is isolated by CLONING OF BOVINE RESPIRATORY SYNCYTIAL VIRUS FUSION PROTEIN AND NUCLEOCAPSID PROTEIN GENES. S-IBR-072 is accomplished utilizing the homology vector and virus S-IBR-052 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. The transfection stock is screened by the BLUOGAL™ SCREEN FOR RECOMBINANT HERPESVIRUS. The result of blue plaque purification is the recombinant virus designated S-IBR-072. This virus is useful as a vaccine to protect cattle from infection with IBR virus and BRSV. The deletion of the US2 gene attenuates the virus, and the deletions of the glycoproteins G and E genes from this virus provides two negative serological markers for distinguishing vaccinated from infected animals. S-IBR-073 S-IBR-073 is an IBR virus that has three deletions in the short unique region of the genome and two foreign genes inserted into the unique long region of the genome. The deletions in the unique short are in the US2 gene, the gG gene, and the gE gene. The extent of these deletions are identical to those described for S- IBR-052 (Example 24) . The genes for the parainfluenza virus type 3 (PI-3) fusion (F) gene (amino acids 4-540) under the control of the HCMV immediate early promoter, PI-3 haemagglutinin/neuraminidase (HN) gene (amino acids 1-573) under the control of the PRV gX promoter, and the E. coli lacZ gene under the control of the HSV- 1 TK promoter were inserted into the gG deletion site within the unique short of the IBRV genome. S-IBR-073 was derived from S-IBR-052. This was accomplished utilizing the homology vector 756-11.17 and virus S-IBR-052 in the HOMOLOGOUS RECOMBINATION PROCEDURE FOR GENERATING RECOMBINANT HERPESVIRUS. The PI-3 F and HN genes were isolated by CLONING OF PARAINFLUENZA-3 FUSION AND HEMAGGLUTININ GENES. The transfection stock was screened by the BLUOGAL™ SCREEN FOR RECOMBINANT HERPESVIRUS. The result of blue plaque purification was the recombinant virus designated S- IBR-073. This virus is useful as a vaccine to protect cattle from infection with IBR virus and PI-3 virus. The deletion of thr US2 gene attenuates the virus, and the deletions of the glycoproteins G and E genes from this virus provides two negative serological markers for distinguishing vaccinated from infected animals. References 1. J.L. Cantello et al., Journal of Virology 65, 1584-1588 (1991) . 2. U.K. Laemnli, Nature 22_7, 680-685 (1970) . 3. B. Lomniczi et al. , Journal of Virology 49., 970- 979 (1984) . 4. R. Longnecker and B. Roizman, Science 236. 573-576 (1987) . 5. S. Mackem and B. Roizman, Proc. Natl. Acad. Sci. USA 79., 4917-4921 (1982) . 6. T. Maniatis et al., Molecular Cloning: A Laboratory Manual. Cold Spring Harbor Press (1982) . 7. J.E. Mayfield et al., Journal of Virology 47. 259- 264 (1983) . 8. D.J. McGeoch et al. , Journal of Molecular Biology 18J., 1-13 (1985) . 9. D.J. McGeoch et al., Journal of General Virology H, 19-38 (1987) . 10. D.J. McGeoch et al. , Journal of General Virology 6 , 1531-1574 (1988) . 11. E.A. Petrovskis et al., Journal of Virology 60. 116-169 (1986) . 12. T.J. Rea et al., Journal of Virology 54., 21-29 (1985) . 13. A.K. Robbins et al., Journal of Virology 5_8, 339- 347 (1986) . 14. J. Sambrook et al. , Molecular Cloning: A Laboratory Manual. Second Edition, Cold Spring Harbor Press (1989) . 15. G.A. Smith et al. , Journal of General Virology 7JL, 2417-2424 (1990) . 16. D.R. Thomsen et al., Gene 16., 207-217, (1981) 17. S.K. Tikoo et al. , Journal of Virology 64., 5132- 5142 (1990) . 18. C.E. Aronson, ed. , Veterinary Pharmaceuticals and Biologicals. Veterinary Medicine Publ . Co., Lenexa, KS, pp. 138-139 (1982-1983) . 19. P.C. Weber et al., Science 236_, 576-579 (1987) . 20. U.S. Wirth et al., Journal of Virology £5, 195-205 (1991) . 21. M. Zijil et al. , Journal of Virology 71. 1747-1755 (1990) . 22. L. Villarreal and P. Berg, Science 196, 183-185 (1977) . 23. U. Gubler and B.J. Hoffman, Gene 2J5, 263-269 (1983) . 24. F.L. Graham and A. Van der Eb, Virology 52, 556- 567 (1973) . 25. N. Elango et al. , Journal of Virology 5_7, 481-489 (1986) . 26. M.K. Spriggs and P.L. Collins, Journal of Virology 59_, 646-654 (1986) . 27. B.M. Blumberg et al. , Journal of General Virology £6, 317-331 (1985) . 28. R. W. Price and A. Kahn, Infection and Immunity 34., 571-580 (1981) . 29. P. B. Tenser et al. , J. of General Virology 64. 1369-1373 (1983) . 30. B. Roizman et al. , Cold Spring Harbor Conference on New Approaches to Viral Vaccines (September, 1983) . 31. R. L. Thompson et al. , Virology 131. 180-192 (1983) . 32. K. Fukuchi et al. , Proc. Natl. Acad. Sci. U.S.A. 82, 751-754, 1985. 33. J. M. Koomey et al. , J. of Virology 10., 662-665, 1984. 34. S.B. Mohanty and S.K. Dutta, Veterinary Virology. Lea and Febiger, Philadelphia (1981) . 35. R. Crandell in Current Veterinary Therapy, pages 543-546, W.B. Saunders, Philadelphia (1981) . 36. H. Ludwig in The Herpesviruses. Vol. 2, B. Roizman, ed., Plenum Press (1983) . 37. A.J. Davison, EMBO Journal, 2_, 2203-2209 (1983) . 38. F.A. Ferrari et al. , J. of Bacteriology 161, 556- 562 1985. 39. V.T. Oi and L.A. Herzenberg, Selected Methods in Cellular Immunology, Freeman Publ. Co., San Francisco (1980) . pp. 351-372. 40. S. Ihara et al., Virology 121, 268-278 (1982) . 41. D. Hanahan, Molecular Biology 166. 557-580 (1983) . 42. M.W. Mellencamp et al., J. of Clinical Microbiology 27, 2208-2213 (1989) . 43. Kit et al., U.S. Patent No. 4,824,667, issued April 25, 1989. 44. Kit et al., U.S. Patent 4,703,011, issued October 27, 1987. 45. Kit et al., The Veterinary Record 127. 363-364 (1990) . 46. European Patent Publication EP 0 326 127 A2, published August 2, 1989. 47. Federal Register, Vol. 55, No. 90, pp. 19245-19253 (May 9, 1990) . 48. Fitzpatrick et al. , J. of Virol. 62., 4239-4288 (1988) . 49. T. Ben-Porat et al., Virol. 154./ 325-334 (1986) . 50. F. Zuckerman et al. , in Vaccination and Control of Auieszky's Disease, Ed. J. van Oirschot, Kluwer, London (1989) . pp. 107-117. 51. L.E. Post et al., J. Reprod. Fert. Suppl. 41, 97- 104 (1990) . 52. Wirth et al. , J. of Virol. £3, 4882-4889 (1989) . 53. B. Moss, Science 252. 1662-1667 (1991) . 54. R.W. Honess, J. of General Virology £5, 2077-2107 (1984) . 55. Cook & Stevens, J. of General Virology 3_1, 75-80 (1976) . 56. Desrosiers et al., Molecular and Cellular Biology 1, 2796-2803 (1985) . 57. Thomsen et al. , Gene 57, 261-265 (1987) . 58. Weir and Narayanan, Nucleic Acids Research 16, 10267-10282 (1988) . 59. Spaete and Mocarski, Proceedings of the National Academy of Sciences U.S.A. £4 / 7213-7217 (1987) . 60. Whealy et al., Journal of Virology £2, 4185-4194 (1988) . 61. Shih et al. , Proceedings of the National Academy of Sciences U.S.A. £1, 5867-5870 (1984) . 62. Edwards et al. , in Technological Advances in Vaccine Development, pp. 223-234, Alan Riss Inc. (1988) . 63. Proceeding of the 94th Annual Meeting of the United States Animal Health Association, pp. 66-75 (1990) . 64. E.A. Petrovskis et al., Journal of Virology 60. 185-193 (1986) . 65. Todd et al. , U.S. Patent No. 4,132,775, issued January 2, 1979. 66. M.S. Collett et al. , Journal of Virology £5, 200- 208, (1988) . 67. M.A. Innis et al. , PCR Protocols: A Guide to Methods and Applications, 84-91, Academic Press, Inc. San Diego (1990) . 68. R.D. Walker, et al., Am. J. Vet Res. £5, 1230-1234 (1984) 69. E. Harlow, and D. Lane, Antibodies: A Laboratory Manual, Cold Spring Harbor Press, New York (1988) . 70. CA. Hjerpe, The Bovine Respiratory Disease Complex. In: Current Veterinary Therapy 2: Food Animal Practice. Ed. by J.L. Howard, Philadelphia, W.B, Saunders Co., 1986, pp 670-680. 71. F. Fenner, et al., "Mechanisms of Disease Production: Acute Infections", Veterinary Virology. Academic Press, Inc., Orlando, Florida, 1987, pp 183-202. 72. T. Inque, et al. , Journal of General Virology 70, 919-934 (1989) . SEQUENCE LISTING (1) GENERAL INFORMATION: (i) APPLICANT: Cochran, Mark D (ii) TITLE OF INVENTION: Recombinant Infectious Bovine Rhinotracheitis Virus S-IBR-052 And Uses Thereof (iii) NUMBER OF SEQUENCES: 99 (iv) CORRESPONDENCE ADDRESS: (A) ADDRESSEE: John P. White (B) STREET: 1185 Avenue of the Americas (C) CITY: New York (D) STATE: New York (E) COUNTRY: USA (F) ZIP: 10036 (v) COMPUTER READABLE FORM: (A) MEDIUM TYPE: Floppy disk (B) COMPUTER: IBM PC compatible (C) OPERATING SYSTEM: PC-DOS/MS-DOS (D) SOFTWARE: Patentin Release #1.0, Version #1.25 (vi) CURRENT APPLICATION DATA: (A) APPLICATION NUMBER: Not Yet Known (B) FILING DATE: 2 February 1995 (C) CLASSIFICATION: (vi) PRIOR APPLICATION DATA: (A) APPLICATION NUMBER: 08/191,866 (B) FILING DATE: 4 February 1994 (C) CLASSIFICATION: (viii) ATTORNEY AGENT INFORMATION: (A) NAME: White, John P. (B) REGISTRATION NO: 28,678 (ix) TELECOMMUNICATION INFORMATION: (A) TELEPHONE: (212) 278-0400 (B) TELEFAX: (212) 391-0525 (C) TELEX: 422523 (2) INFORMATION FOR SEQ ID NO:l: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 1079 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (vi) ORIGINAL SOURCE: (A) ORGANISM: Bovine Herpesvirus-1 (IBR Virus) (B) STRAIN: Cooper (C) INDIVIDUAL ISOLATE: S-IBR-000 (viii) POSITION IN GENOME: (B) MAP POSITION: -86.8 to -87.8 (C) UNITS: %G (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 25..951 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:l: TTAAGCGTTG CCGTGGCGGT CGCC ATG GTG ACT ATA GTC ACG TGT GGC CGG 51 Met Val Thr He Val Thr Cys Gly Arg 1 5 ATA GGC GCG GCG CCT TCC AGG CAA GCC CAG ACG TGC GCC GCG CGG GTG 99 He Gly Ala Ala Pro Ser Arg Gin Ala Gin Thr Cys Ala Ala Arg Val 10 15 20 25 TGG CGT TTC CTT GCC GAG CAG AGC CGG GCG CTG ACG GCA AGC CGG CTG 147 Trp Arg Phe Leu Ala Glu Gin Ser Arg Ala Leu Thr Ala Ser Arg Leu 30 35 40 GGG ACG ACG GTC GTT GTC TTC GAT CAC GCC CTA GTA AAA ACG GCG AAG 195 Gly Thr Thr Val Val Val Phe Asp His Ala Leu Val Lys Thr Ala Lys 45 50 55 GGC TGC ACG TCG ACG TCA ACG TCA AGC CAG CGG CGC GGG TGG CTT TTG 243 Gly Cys Thr Ser Thr Ser Thr Ser Ser Gin Arg Arg Gly Trp Leu Leu 60 65 70 TCG ACA CAG CGC CCT TGG CCC GGG CGC CGG CTT AGC CCG CCA CCG CCA 291 Ser Thr Gin Arg Pro Trp Pro Gly Arg Arg Leu Ser Pro Pro Pro Pro 75 80 85 ACC GGC GAG TGG GTC AGC TGG TCG ACG GCT ACA AAC TTG CTG AAA CTC 339 Thr Gly Glu Trp Val Ser Trp Ser Thr Ala Thr Asn Leu Leu Lys Leu 90 95 100 105 GGC CGC GCG AGG GCT CGG CCC TTC CAC ATG TGG GTT TTT GGC GCC GCC 387 Gly Arg Ala Arg Ala Arg Pro Phe His Met Trp Val Phe Gly Ala Ala 110 115 120 GAT TTG TAC GCG CCT ATT TTT GCG CAC ATT GCC GCC ACG ACG CGC TTG 435 Asp Leu Tyr Ala Pro He Phe Ala His He Ala Ala Thr Thr Arg Leu 125 130 135 GTT TAC GCG CAG CTG GAC TGT ACG TTT GCG GGA GCG GCG TGG CGG CTC 483 Val Tyr Ala Gin Leu Asp Cys Thr Phe Ala Gly Ala Ala Trp Arg Leu 140 145 150 CCG CGG CGC GGC CCG GCC ATC GCT AGC CCG TGG CCG CCC TAC GAT ACC 531 Pro Arg Arg Gly Pro Ala He Ala Ser Pro Trp Pro Pro Tyr Asp Thr 155 160 165 CCG ACA CTC CCT GAG CTG GT3 GCC GGT GGT GTC CTT TTC CGG CTG GTC 579 Pro Thr Leu Pro Glu Leu Val Ala Gly Gly Val Leu Phe Arg Leu Val 170 175 180 185 TAC GAA GTC GTA GAC CGC GGG CGG CGC CCC GCC CCG CCA AAC GCG AGC 627 Tyr Glu Val Val Asp Arg Gly Arg Arg Pro Ala Pro Pro Asn Ala Ser 190 195 200 CCC CGT GCC CCA GGG GCT CGC CCC CGC GCG CGC CAT GTG CTA TCC TTT 675 Pro Arg Ala Pro Gly Ala Arg Pro Arg Ala Arg His Val Leu Ser Phe 205 210 215 AAA GGC CGC ACC CAG CGC CGG CGT TTG GTC ATT TGC TTT GTG ACC GCG 723 Lys Gly Arg Thr Gin Arg Arg Arg Leu Val He Cys Phe Val Thr Ala 220 225 230 CCG AGG GAC CAT GTT CCG CCA GGG CAC CCC CAA CCG CGT GGT GAT CAG 771 Pro Arg Asp His Val Pro Pro Gly His Pro Gin Pro Arg Gly Asp Gin 235 240 245 CAC AGT GCC GTT GAG CAG AGA GGC GAC CGC GAC CGC GAC CGC CGG CAC 819 His Ser Ala Val Glu Gin Arg Gly Asp Arg Asp Arg Asp Arg Arg His 250 255 260 265 CGG TCC CGG ATG CGA GGG GGG GCT TGG TGG CTG GCG ACT CTT TAC AGT 867 Arg Ser Arg Met Arg Gly Gly Ala Trp Trp Leu Ala Thr Leu Tyr Ser 270 275 280 GCC GCC ACG AGC AAG AAG ACG GCC TGT ATG CTA TCG TCC CGC CGG ACT 915 Ala Ala Thr Ser Lys Lys Thr Ala Cys Met Leu Ser Ser Arg Arg Thr 285 290 295 ATT TTC CGG TGG TGC CCT CGT CCA AGC CCC TGC TGG TGAAAGTTCC 961 He Phe Arg Trp Cys Pro Arg Pro Ser Pro Cys Trp 300 305 CGCTCCCGGC GCGAGTCCCG ACCGAACTGG GGGCGCAGTT CACTTTGAAT GTGTTCCCGC 1021 GCCGCGCCGA CCGCTGCAGT TCTTTCGTCA GCTTTACGAC GGTTCATTCG TTAAGCTT 1079 (2) INFORMATION FOR SEQ ID NO:2: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 309 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:2: Met Val Thr He Val Thr Cys Gly Arg He Gly Ala Ala Pro Ser Arg 1 5 10 15 Gin Ala Gin Thr Cys Ala Ala Arg Val Trp Arg Phe Leu Ala Glu Gin 20 25 30 Ser Arg Ala Leu Thr Ala Ser Arg Leu Gly Thr Thr Val Val Val Phe 35 40 45 Asp His Ala Leu Val Lys Thr Ala Lys Gly Cys Thr Ser Thr Ser Thr 50 55 60 Ser Ser Gin Arg Arg Gly Trp Leu Leu Ser Thr Gin Arg Pro Trp Pro 65 70 75 80 Gly Arg Arg Leu Ser Pro Pro Pro Pro Thr Gly Glu Trp Val Ser Trp 85 90 95 Ser Thr Ala Thr Asn Leu Leu Lys Leu Gly Arg Ala Arg Ala Arg Pro 100 105 110 Phe His Met Trp Val Phe Gly Ala Ala Asp Leu Tyr Ala Pro He Phe 115 120 125 Ala His He Ala Ala Thr Thr Arg Leu Val Tyr Ala Gin Leu Asp Cys 130 135 140 Thr Phe Ala Gly Ala Ala Trp Arg Leu Pro Arg Arg Gly Pro Ala He 145 150 155 160 Ala Ser Pro Trp Pro Pro Tyr Asp Thr Pro Thr Leu Pro Glu Leu Val 165 170 175 Ala Gly Gly Val Leu Phe Arg Leu Val Tyr Glu Val Val Asp Arg Gly 180 185 190 Arg Arg Pro Ala Pro Pro Asn Ala Ser Pro Arg Ala Pro Gly Ala Arg 195 200 205 Pro Arg Ala Arg His Val Leu Ser Phe Lys Gly Arg Thr Gin Arg Arg 210 215 220 Arg Leu Val He Cys Phe Val Thr Ala Pro Arg Asp His Val Pro Pro 225 230 235 240 Gly His Pro Gin Pro Arg Gly Asp Gin His Ser Ala Val Glu Gin Arg 245 250 255 Gly Asp Arg Asp Arg Asp Arg Arg His Arg Ser Arg Met Arg Gly Gly 260 265 270 Ala Trp Trp Leu Ala Thr Leu Tyr Ser Ala Ala Thr Ser Lys Lys Thr 275 280 285 Ala Cys Met Leu Ser Ser Arg Arg Thr He Phe Arg Trp Cys Pro Arg 290 295 300 Pro Ser Pro Cys Trp 305 (2) INFORMATION FOR SEQ ID NO:3: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 18 amino acids (B) TYPE: amino acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (xi) SEQUENCE DESCRIPTION: SEQ ID NO:3: His Met Trp Val Phe Gly Ala Ala Asp Leu Tyr Ala Pro He Phe Ala 1 5 10 15 His He (2) INFORMATION FOR SEQ ID NO:4: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 18 amino acids (B) TYPE: amino acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (vi) ORIGINAL SOURCE: (A) ORGANISM: Herpes Simplex Virus Type 1 (xi) SEQUENCE DESCRIPTION: SEQ ID N0:4: His Leu Trp Val Val Gly Ala Ala Asp Leu Cys Val Pro Phe Leu Glu 1 5 10 15 Tyr Ala (2) INFORMATION FOR SEQ ID NO:5: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 18 amino acids (B) TYPE: amino acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (vi) ORIGINAL SOURCE: (A) ORGANISM: Pseudorabies Virus (xi) SEQUENCE DESCRIPTION: SEQ ID NO:5: His Leu Trp He Leu Gly Ala Ala Asp Leu Cys Asp Gin Val Leu Leu 1 5 10 15 Ala Ala (2) INFORMATION FOR SEQ ID NO:6: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 18 amino acids (B) TYPE: amino acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (vi) ORIGINAL SOURCE: (A) ORGANISM: Herpes Simplex Virus Type 2 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:6: His Leu Trp He Val Gly Ala Ala Asp He Cys Arg He Ala Leu Glu 1 5 10 15 Cys He (2) INFORMATION FOR SEQ ID NO:7: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 19 amino acids (B) TYPE: amino acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (vi) ORIGINAL SOURCE: (A) ORGANISM: Marek's Disease Virus (xi) SEQUENCE DESCRIPTION: SEQ ID NO:7: His Ser Leu Trp He Val Gly Ala Ala Asp He Cys Arg He Ala Leu 1 5 10 15 Glu Cys He (2) INFORMATION FOR SEQ ID NO:8: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 60 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:8: TGAGCGCGCG CCGCTGCATG CTGGTGCGAA CTCACGCCGA GCGCGCGTGC GAGCAAGCTT 60 (2) INFORMATION FOR SEQ ID NO:9: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 60 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:9: CTAGTAAAAA CGGCGAAGGG CTGGTGCGAA CTCACGCCGA GCGCGCGTGC GAGCAAGCTT 60 (2) INFORMATION FOR SEQ ID NO:10: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 60 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:10: CTAGTAAAAA CGGCGAAGGG CTGCACGTCG ACGTCAACGT CAAGCCAGCG GCGCGGGTGG 60 (2) INFORMATION FOR SEQ ID NO:11: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 48 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:11: GATTTAGGTG ACACTATAGA ATACACGGAA TTCGAGCTCG CCCCATGG 48 (2) INFORMATION FOR SEQ ID NO:12: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 99 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 1..12 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:12: TTA AGT GGG ATC CCGGCGCGCA GGCGCGCACG TCGGTCGCGG TCGCGCGCCA 52 Leu Ser Gly He 1 TGGGGGATCC TCTAGAGCTT GGGCTGCAGG TCCTGATTGA TACACTG 99 (2) INFORMATION FOR SEQ ID NO:13: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 4 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:13: Leu Ser Gly He 1 (2) INFORMATION FOR SEQ ID NO:14: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 99 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:14: GCCCCGATCG TCCACACGGA GCGCGGCTGC CGACACGGAT CTGATCAAGA GACAGGATGA 60 GGATCGTTTC GCATGATTGA ACAAGATGGA TTGCACGCA 99 (2) INFORMATION FOR SEQ ID NO:15: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 99 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 64..78 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:15: GGACCTTGCA CAGATAGCGT GGTCCGGCCA GGACGACGAG GCTTGCAGGA TCCTCTAGAG 60 TCG GGA GAT GGG GGA GGC TAACTGAAAC ACGGAAGGAG A 99 Gly Asp Gly Gly Gly 1 5 (2) INFORMATION FOR SEQ ID NO:16: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 5 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:16: Gly Asp Gly Gly Gly 1 5 (2) INFORMATION FOR SEQ ID NO:17: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 99 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 61..99 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:17: GTGTTGCTGC GTTCCCGACC TGCAGCCCAA GCTCTAGAGT CGACCTGCAG CCCAAGCTCA 60 GAT CTG CTC ATG CTC GCG GCC GCC ATG CCC CCG GAA GCG 99 Asp Leu Leu Met Leu Ala Ala Ala Met Pro Pro Glu Ala 1 5 10 (2) INFORMATION FOR SEQ ID NO:18: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 13 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:18: Asp Leu Leu Met Leu Ala Ala Ala Met Pro Pro Glu Ala 1 5 10 (2) INFORMATION FOR SEQ ID NO:19: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 60 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI -SENSE : NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:19: AGGCAGATCT GAGCTTGGCG TAATCATGGT CATAGCTGTT TCCTGTGTGA AATTGTTATC 60 (2) INFORMATION FOR SEQ ID NO:20: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 1386 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (vi) ORIGINAL SOURCE: (A) ORGANISM: Bovine herpesvirus-1 (IBR virus) (B) STI-AIN: Cooper (C) INDIVIDUAL ISOLATE: S-IBR-000 (vii) IMMEDIATE SOURCE: (B) CLONE: 439-18.1 (PSY 1643) (viii) POSITION IN GENOME: (B) MAP POSITION: -86.8 to 87.8 (C) UNITS: %G (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 7..1329 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:20: GCGATC ATG CCT GCC GCC CGG ACC GGC ACC TTG GCC GCC GTC GCC CTA 48 Met Pro Ala Ala Arg Thr Gly Thr Leu Ala Ala Val Ala Leu 1 5 10 ATC CTG CTC TGC GGG GCC GCC GTT TTG CGG CCC CGC GCC CGA CGA CCT 96 He Leu Leu Cys Gly Ala Ala Val Leu Arg Pro Arg Ala Arg Arg Pro 15 20 25 30 CTG TTT CGC CGA CGT GCG CCG CAC TGG CAT GGC GCC CTC CCG CCC GCT 144 Leu Phe Arg Arg Arg Ala Pro His Trp His Gly Ala Leu Pro Pro Ala 35 40 45 GGG GCC CGT CCT GAA CCT AGC GGC CTC GGA TTT GAC CTC GCG GGT TTC 192 Gly Ala Arg Pro Glu Pro Ser Gly Leu Gly Phe Asp Leu Ala Gly Phe 50 55 60 GGT GCG CGC GGT GGA GCT TCG CGC GCT GCG CCC TGG CCC TCT TGG ACA 240 Gly Ala Arg Gly Gly Ala Ser Arg Ala Ala Pro Trp Pro Ser Trp Thr 65 70 75 TGG CGG AGA CGG TGG TGC CCG GCG GAC CGC GAG CCS CAC GTC GTC GAC 288 Trp Arg Arg Arg Trp Cys Pro Ala Asp Arg Glu Pro His Val Val Asp 80 85 90 GTC GGC TGG GCT TAC CAA GAC GGG GAC TGC ATG GTG CCT CTG GCA TAT 336 Val Gly Trp Ala Tyr Gin Asp Gly Asp Cys Met Val Pro Leu Ala Tyr 95 100 105 110 CGC CAG TAC TTT AAC TGC ACG GGG GGC GCG CTG CCC GGC CAA AAC GTC 384 Arg Gin Tyr Phe Asn Cys Thr Gly Gly Ala Leu Pro Gly Gin Asn Val 115 120 125 TGC GCC GGG CTC TCT GAG ACC CGC ATC CGC GGT GGC TTT GGA ACC TCC 432 Cys Ala Gly Leu Ser Glu Thr Arg He Arg Gly Gly Phe Gly Thr Ser 130 135 140 GAC TAC GCG CTC TAC GGG ACG TCG CTA GTA CTG CGC CCC GGC CTG TAC 480 Asp Tyr Ala Leu Tyr Gly Thr Ser Leu Val Leu Arg Pro Gly Leu Tyr 145 150 155 GAC CGC GGG ACC TAC ATC TAC TTC CTT GGA TAC GGC CCA GAC GAC ATC 528 Asp Arg Gly Thr Tyr He Tyr Phe Leu Gly Tyr Gly Pro Asp Asp He 160 165 170 TAC GTG GGC AGC GTC ACG CTC ATG GTG GGC GCC GAC ATC CAC AAA TAC 576 Tyr Val Gly Ser Val Thr Leu Met Val Gly Ala Asp He His Lys Tyr 175 180 185 190 CCC TGC GGG CTG GAC CGA GGG CTC GGT GTG GCC CTG CAC CAC AAG AGC 624 Pro Cys Gly Leu Asp Arg Gly Leu Gly Val Ala Leu His His Lys Ser 195 200 205 GGA CCG GCC CGA CCT CTG ACA GAG GAC GAC GCC ACC GGC GAC TGG GCC 672 Gly Pro Ala Arg Pro Leu Thr Glu Asp Asp Ala Thr Gly Asp Trp Ala 210 215 220 TGC GGC TGC TTC CCC GCC CTT GTT GAG GTT GAC GCG GTG TGG GGC AAC 720 Cys Gly Cys Phe Pro Ala Leu Val Glu Val Asp Ala Val Trp Gly Asn 225 230 235 GTA AGC GCC GCA GAG CTG GGC CTG GCC GAC CCG ATC GAC TAC GCC GAC 768 Val Ser Ala Ala Glu Leu Gly Leu Ala Asp Pro He Asp Tyr Ala Asp 240 245 250 GAA GGG GGT GAG GTC GAA GTG CTC GAG GAC GAA GCC GGG AGC GCC AGC 816 Glu Gly Gly Glu Val Glu Val Leu Glu Asp Glu Ala Gly Ser Ala Ser 255 260 265 270 GGA AAC CTG CCG CAG GAC GAC CCC GAC CCC GAC CTC GCA GAT TGC CGG 864 Gly Asn Leu Pro Gin Asp Asp Pro Asp Pro Asp Leu Ala Asp Cys Arg 275 280 285 ACC GTC GGG CTC TTT AGC GAA AGC GAC ATG TTC CGG ACC GCC AGC GGG 912 Thr Val Gly Leu Phe Ser Glu Ser Asp Met Phe Arg Thr Ala Ser Gly 290 295 300 CCC GAA TCG CTG CTG ATC GGC GCC GTT GCC AAG GAC GTC CTG ACG GTG 960 Pro Glu Ser Leu Leu He Gly Ala Val Ala Lys Asp Val Leu Thr Val 305 310 315 CCC CTC AAT CTG CCG CCC GGC CGC TCT TAC GAG GCC CTG CGA AAC GCA 1008 Pro Leu Asn Leu Pro Pro Gly Arg Ser Tyr Glu Ala Leu Arg Asn Ala 320 325 330 TCG CTG GAG TGC AAC TCC CGC CCG CGC GAG ACC GGC GAC GCA GCG GTG 1056 Ser Leu Glu Cys Asn Ser Arg Pro Arg Glu Thr Gly Asp Ala Ala Val 335 340 345 350 GTG GTG ATG TCT CTC CAG GAG CCC GCT CGC CTC GAG CGC CGC CCC GAT 1104 Val Val Met Ser Leu Gin Glu Pro Ala Arg Leu Glu Arg Arg Pro Asp 355 360 365 GCC CGC GCC ACC GAT CCG GAG TTT GGG CTC TTT GGC CTG CCC GAT GAC 1152 Ala Arg Ala Thr Asp Pro Glu Phe Gly Leu Phe Gly Leu Pro Asp Asp 370 -375 380 CCC GCC GTG CGC GCG GCA TTC TCA TCG GCC TCG CGA TCG CTC TGC TGG 1200 Pro Ala Val Arg Ala Ala Phe Ser Ser Ala Ser Arg Ser Leu Cys Trp 385 390 395 TGC TGC TGT TTC GCT GGT GAT CGT GCT CGT CTG CGC CTG CCG GCT CGC 1248 Cys Cys Cys Phe Ala Gly Asp Arg Ala Arg Leu Arg Leu Pro Ala Arg 400 405 410 CCG CCC AGC CAA GGC TGC GCG ACG CCC CGC GCC GCC ACG TTC GCC AAG 1296 Pro Pro Ser Gin Gly Cys Ala Thr Pro Arg Ala Ala Thr Phe Ala Lys 415 420 425 430 AGC AAC CCC GCG TAC GAG CCG ATG CTC AGC GTC TGATCGCCGG CACCCCACGC 1349 Ser Asn Pro Ala Tyr Glu Pro Met Leu Ser Val 435 440 CGCCCCGACC CCGCTGTCCC GCGTTTACAA TAAACAG 1386 (2) INFORMATION FOR SEQ ID NO:21: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 441 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:21: Met Pro Ala Ala Arg Thr Gly Thr Leu Ala Ala Val Ala Leu He Leu 1 5 10 15 Leu Cys Gly Ala Ala Val Leu Arg Pro Arg Ala Arg Arg Pro Leu Phe 20 25 30 Arg Arg Arg Ala Pro His Trp His Gly Ala Leu Pro Pro Ala Gly Ala 35 40 45 Arg Pro Glu Pro Ser Gly Leu Gly Phe Asp Leu Ala Gly Phe Gly Ala 50 55 60 Arg Gly Gly Ala Ser Arg Ala Ala Pro Trp Pro Ser Trp Thr Trp Arg 65 70 75 80 Arg Arg Trp Cys Pro Ala Asp Arg Glu Pro His Val Val Asp Val Gly 85 90 95 Trp Ala Tyr Gin Asp Gly Asp Cys Met Val Pro Leu Ala Tyr Arg Gin 100 105 110 Tyr Phe Asn Cys Thr Gly Gly Ala Leu Pro Gly Gin Asn Val Cys Ala 115 120 125 Gly Leu Ser Glu Thr Arg He Arg Gly Gly Phe Gly Thr Ser Asp Tyr 130 135 140 Ala Leu Tyr Gly Thr Ser Leu Val Leu Arg Pro Gly Leu Tyr Asp Arg 145 150 155 160 Gly Thr Tyr He Tyr Phe Leu Gly Tyr Gly Pro Asp Asp He Tyr Val 165 170 175 Gly Ser Val Thr Leu Met Val Gly Ala Asp He His Lys Tyr Pro Cys 180 185 190 Gly Leu Asp Arg Gly Leu Gly Val Ala Leu His His Lys Ser Gly Pro 195 200 205 Ala Arg Pro Leu Thr Glu Asp Asp Ala Thr Gly Asp Trp Ala Cys Gly 210 215 220 Cys Phe Pro Ala Leu Val Glu Val Asp Ala Val Trp Gly Asn Val Ser 225 230 235 240 Ala Ala Glu Leu Gly Leu Ala Asp Pro He Asp Tyr Ala Asp Glu Gly 245 250 255 Gly Glu Val Glu Val Leu Glu Asp Glu Ala Gly Ser Ala Ser Gly Asn 260 265 270 Leu Pro Gin Asp Asp Pro Asp Pro Asp Leu Ala Asp Cys Arg Thr Val 275 280 285 Gly Leu Phe Ser Glu Ser Asp Met Phe Arg Thr Ala Ser Gly Pro Glu 290 295 300 Ser Leu Leu He Gly Ala Val Ala Lys Asp Val Leu Thr Val Pro Leu 305 310 315 320 Asn Leu Pro Pro Gly Arg Ser Tyr Glu Ala Leu Arg Asn Ala Ser Leu 325 330 335 Glu Cys Asn Ser Arg Pro Arg Glu Thr Gly Asp Ala Ala Val Val Val 340 345 350 Met Ser Leu Gin Glu Pro Ala Arg Leu Glu Arg Arg Pro Asp Ala Arg 355 360 365 Ala Thr Asp Pro Glu Phe Gly Leu Phe Gly Leu Pro Asp Asp Pro Ala 370 375 380 Val Arg Ala Ala Phe Ser Ser Ala Ser Arg Ser Leu Cys Trp Cys Cys 385 390 395 400 Cys Phe Ala Gly Asp Arg Ala Arg Leu Arg Leu Pro Ala Arg Pro Pro 405 410 415 Ser Gin Gly Cys Ala Thr Pro Arg Ala Ala Thr Phe Ala Lys Ser Asn 420 425 430 Pro Ala Tyr Glu Pro Met Leu Ser Val 435 440 (2) INFORMATION FOR SEQ ID NO:22: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 34 amino acids (B) TYPE: amino acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (vi) ORIGINAL SOURCE: (A) ORGANISM: Bovine Herpesvirus-1 (IBR Virus) (xi) SEQUENCE DESCRIPTION: SEQ ID N0:22: Val Gly Trp Ala Tyr Gin Asp Gly Asp Cys Met Val Pro Leu Ala Tyr 1 5 10 15 Arg Gin Tyr Phe Asn Cys Thr Gly Gly Ala Leu Pro Gly Asn Val Leu 20 25 30 Cys Ala (2) INFORMATION FOR SEQ ID NO:23: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 34 amino acids (B) TYPE: amino acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (va) ORIGINAL SOURCE: (A) ORGANISM: Pseudorabies Virus (xi) SEQUENCE DESCRIPTION: SEQ ID NO:23: Val Ala Trp Phe Phe Asp Gly Gly His Cys Lys Val Pro Leu Val His 1 5 10 15 Arg Glu Tyr Tyr Gly Cys Pro Gly Asp Ala Met Pro Ser Val Glu Thr 20 25 30 Cys Thr (2) INFORMATION FOR SEQ ID NO:24: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 34 amino acids (B) TYPE: amino acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (vi) ORIGINAL SOURCE: (A) ORGANISM: Herpes Simplex Virus Type 2 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:24: Val Thr Tyr Tyr Arg Leu Thr Arg Ala Cys Arg Gin Pro He Leu Leu 1 5 10 15 Arg Gin Tyr Gly Gly Cys Arg Gly Gly Glu Pro Pro Ser Pro Lys Thr 20 25 30 Cys Gly (2) INFORMATION FOR SEQ ID NO:25: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 102 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:25: CACATACGAT TTAGGTGACA CTATAGAATA CAAGCTTGGG CTGCAGGTCG ACTCTAGAGT 60 CGACCTGCAG TGAATAATAA AATGTGTGTT TGTCCGAAAT AC 102 (2) INFORMATION FOR SEQ ID NO:26: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 102 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:26: GCGTTTGAGA TTTCTGTCCC GACTAAATTC ATGTCGCGCG ATAGTGGTGT TTATCGCCGA 60 TAGAGATGGC GATATTGGAA AAATCGATAT TTGAAAATAT GG 102 (2) INFORMATION FOR SEQ ID NO:27: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 102 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:27: CATATTGAAA ATGTCGCCGA TGTGAGTTTC TGTGTAACTG ATCGCGTGTT TGGAGGCAAC 60 CGGGGCCTGC TCCCGACGGC CAGCGACGAC GTGGTGCTCA AG 102 (2) INFORMATION FOR SEQ ID NO:28: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 102 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 1..102 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:28: ATG TCT CTC CAG GAG CCC GCT CGC CTC GAG GGC CTG CCC TCG CAG CTG 48 Met Ser Leu Gin Glu Pro Ala Arg Leu Glu Gly Leu Pro Ser Gin Leu 1 5 10 15 CCC GTC TTC GAG GAC ACG CAG CGC TAC GAC GCC TCC CCC GCG TCC GTG 96 Pro Val Phe Glu Asp Thr Gin Arg Tyr Asp Ala Ser Pro Ala Ser Val 20 25 30 AGC TGG 102 Ser Trp (2) INFORMATION FOR SEQ ID NO:29: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 34 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:29: Met Ser Leu Gin Glu Pro Ala Arg Leu Glu Gly Leu Pro Ser Gin Leu 1 5 10 15 Pro Val Phe Glu Asp Thr Gin Arg Tyr Asp Ala Ser Pro Ala Ser Val 20 25 30 Ser Trp (2) INFORMATION FOR SEQ ID NO:30: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 102 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 1..42 (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 43..63 (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 64..102 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:30: CCC GTG AGC AGC ATG ATC GTC GTC ATC GCC GGC ATC GGG ATC CTG GCC 48 Pro Val Ser Ser Met He Val Val He Ala Gly He Gly He Leu Ala 1 5 10 1 ATC GTG CTG GTC ATC CAT ATG GCG ATC ATC AGG GCC CGG GCC CGG AAC 96 He Val Leu Val He His Met Ala He He Arg Ala Arg Ala Arg Asn 5 1 5 10 GAC GGC 102 Asp Gly (2) INFORMATION FOR SEQ ID NO:31: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 14 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:31: Pro Val Ser Ser Met He Val Val He Ala Gly He Gly He 1 5 10 (2) INFORMATION FOR SEQ ID NO:32: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 7 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:32: Leu Ala He Val Leu Val He 1 5 (2) INFORMATION FOR SEQ ID NO:33: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 13 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:33: His Met Ala He He Arg Ala Arg Ala Arg Asn Asp Gly 1 5 10 (2) INFORMATION FOR SEQ ID NO:34: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 75 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:34: GGGCCAGTAC CGGCGCCTGG TGTCCGTCGA CTCTAGAGTC GACCTGCAGC CCAAGCTTTG 60 GCGTAATCAT GGTCA 75 (2) INFORMATION FOR SEQ ID NO:35: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 57 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:35: ACATACGATT TAGGTGACAC TATAGAATAC AAGCTTAACG AATGAACCGT CGTAAAG 57 (2) INFORMATION FOR SEQ ID NO:36: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 96 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO ( ix) FEATURE : (A) NAME/KEY: CDS (B) LOCATION: 1..12 (xi) SEQUENCE DESCRIPTION: SEQ ID N0:36: GTC GAA GTG CTC GAAATTCGAG CTCGCCCGGG GATCCTCTAG AGTCGACCTG 52 Val Glu Val Leu 1 CAGGTCGACT CTAGAGGATC TCGACGGACA CCAGGCGCCG GTAC 96 (2) INFORMATION FOR SEQ ID NO:37: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 4 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:37: Val Glu Val Leu 1 (2) INFORMATION FOR SEQ ID NO:38: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 57 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:38: GGGCGGGGCC GGGTCAGCCG GATCTAGAGT CCCAGGACCC AACGCTGCCC GAGTTTG 57 (2) INFORMATION FOR SEQ ID NO:39: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 57 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:39: TCCCAGTCAC GACGTTGTAA AACGACGGGA TCCATGGTCC CGGTGTCTTC TATGGAG 57 (2) INFORMATION FOR SEQ ID NO:40: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 57 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 49..57 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:40: ATTCACTGCA GGTCGACTCT AGAGGATCCC CGGGCGAGCT CGAATTTC GAG CGC CGC 57 Glu Arg Arg 1 (2) INFORMATION FOR SEQ ID NO:41: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 3 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:41: Glu Arg Arg 1 (2) INFORMATION FOR SEQ ID NO:42: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 57 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 1..27 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:42: GCG CGC GCG TAC AAC GCC ACG GTC ATA GGGCGAGCTC GAATTCGTAA 47 Ala Arg Ala Tyr Asn Ala Thr Val He 1 5 TCATGGTCAT 57 (2) INFORMATION FOR SEQ ID NO: 3: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 9 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:43: Ala Arg Ala Tyr Asn Ala Thr Val He 1 5 (2) INFORMATION FOR SEQ ID NO:44: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 57 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:44: ATACACATAC GATTTAGGTG ACACTATAGA ATACAAGCTC GCGTGTTTGG AGGCAAC 57 (2) INFORMATION FOR SEQ ID NO:45: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 102 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:45: TCGGGGTAGC CCCAATTCGA GCTCGCCCGG GGATCCTCTA GAGTCGACCT GCAGGTCGAC 60 TCTAGAGGAT CTCGACGGAC ACCAGGCGCC GGTACTGGCC CT 102 (2) INFORMATION FOR SEQ ID NO:46: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 57 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 6: GGGCGGGGCC GGGTCAGCCG GATCTAGAGT CCCAGGACCC AACGCTGCCC GAGTTTG 57 (2) INFORMATION FOR SEQ ID NO:47: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 57 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:47: TCCCAGTCAC GACGTTGTAA AACGACGGGA TCCATGGTCC CGGTGTCTTC TATGGAG 57 (2) INFORMATION FOR SEQ ID NO:48: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 57 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 49..57 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:48: ATTCACTGCA GGTCGACTCT AGAGGATCCC CGGGCGAGCT CGAATTTC GAG CGC CGC 57 Glu Arg Arg 1 (2) INFORMATION FOR SEQ ID NO:49: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 3 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:49: Glu Arg Arg 1 (2) INFORMATION FOR SEQ ID NO:50: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 57 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 1..27 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:50: GCG CGC GCG TAC AAC GCC ACG GTC ATA GGGCGAGCTC GAATTCGTAA 47 Ala Arg Ala Tyr Asn Ala Thr Val He 1 5 TCATGGTCAT 57 (2) INFORMATION FOR SEQ ID NO:51: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 9 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:51: Ala Arg Ala Tyr Asn Ala Thr Val He 1 5 (2) INFORMATION FOR SEQ ID NO:52: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 57 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:52: ATACACATAC GATTTAGGTG ACACTATAGA ATACAAGCTC GCGTGTTTGG AGGCAAC E , (2) INFORMATION FOR SEQ ID NO:53: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 84 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 67..84 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:53: CGGGGTAGCC CCAATTCGAG CTCGCCCGGG GATCCTCTAG AGGATCCCCG GGCGAGCTCG 60 AATTTC GAG CGC CGC CCC GAT GCC 84 Glu Arg Arg Pro Asp Ala 1 5 (2) INFORMATION FOR SEQ ID NO:54: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 6 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:54: Glu Arg Arg Pro Asp Ala 1 5 (2) INFORMATION FOR SEQ ID NO:55: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 57 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 1..27 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:55: GCG CGC GCG TAC AAC GCC ACG GTC ATA GGGCGAGCTC GAATTCGTAA 47 Ala Arg Ala Tyr Asn Ala Thr Val lie 1 5 TCATGGTCAT 57 (2) INFORMATION FOR SEQ ID NO:56: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 9 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:56: Ala Arg Ala Tyr Asn Ala Thr Val lie 1 5 (2) INFORMATION FOR SEQ ID NO:57: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 2040 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (vi) ORIGINAL SOURCE: (A) ORGANISM: Bovine herpesvirus-1 (IBR virus) (B) STRAIN: Cooper (C) INDIVIDUAL ISOLATE: S-IBR-000 (vii) IMMEDIATE SOURCE: (B) CLONE:PSY 1644, PSY 1645 (viii) POSITION IN GENOME: (B) MAP POSITION: -86.8 to 87.8 (C) UNITS: %G (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 85..1935 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:57: GCGGGCAAGG CGGAGGAAGA CCGGGGGCAG GAGCTGCGTG GAGGGCGGAG CCGTTGAGCG 60 GCCCGACCGC CGCCGGGTTG TTAA ATG GGT CTC GCG CGG CTC GTG GTT CCA 111 Met Gly Leu Ala Arg Leu Val Val Pro 1 5 CAC CGC GCC GGA GAA CCA GCG CGC AGC TTC GCT GCG TGT GTC CCG CGA 159 His Arg Ala Gly Glu Pro Ala Arg Ser Phe Ala Ala Cys Val Pro Arg 10 15 20 25 GCT GCG TTC CGG GGA ACG GCG CGC GCG AGA GGG TTC GAA AAG GGC ATT 207 Ala Ala Phe Arg Gly Thr Ala Arg Ala Arg Gly Phe Glu Lys Gly lie 30 35 40 TGG CAA TGC AAC CCA CCG CGC CGC CCC GGC SSG GTT GCG CCG CTG CTG 255 Trp Gin Cys Asn Pro Pro Arg Arg Pro Gly Xxx Val Ala Pro Leu Leu 45 50 55 CTG CCG CAG TTA TTG CTT TTC GGG CTG ATG GCC GAG GCC AAG CCC GCG 303 Leu Pro Gin Leu Leu Leu Phe Gly Leu Met Ala Glu Ala Lys Pro Ala 60 65 70 ACC GAA ACC CCG GGC TCG GCT TCG GTC GAC ACG GTC TTC ACG GCG CGC 351 Thr Glu Thr Pro Gly Ser Ala Ser Val Asp Thr Val Phe Thr Ala Arg 75 80 85 GCT GGC GCG CCC GTC TTT CTC CCA GGG CCC GCG GCG CGC CCG GAC GTG 399 Ala Gly Ala Pro Val Phe Leu Pro Gly Pro Ala Ala Arg Pro Asp Val 90 95 190 105 CGC GCC GTT CGC GGC TGG AGC GTC CTC GCG GCC GCC TGC TCG CCG CCC 447 Arg Ala Val Arg Gly Trp Ser Val Leu Ala Ala Ala Cys Ser Pro Pro 110 115 120 GTG CCG GAG CCC GTC TGC CTC GAC GAC CGC GAG TGC TTC ACC GAC GTG 495 Val Pro Glu Pro Val Cys Leu Asp Asp Arg Glu Cys Phe Thr Asp Val 125 130 135 GCC CTG GAC GCG GCC TGC CTG CGA ACC GCC CGC GTG GCC CCG CTG GCC 543 Ala Leu Asp Ala Ala Cys Leu Arg Thr Ala Arg Val Ala Pro Leu Ala 140 145 150 ATC GCG GAG CTC GCC GAG CGG CCC GAC TCA ACG GGC GAC AAA GAG TTT 591 lie Ala Glu Leu Ala Glu Arg Pro Asp Ser Thr Gly Asp Lys Glu Phe 155 160 165 GTT CTC GCC GAC CCG CAC GTC TCG GCG CAG CTG GGT CGC AAC GCG ACC 639 Val Leu Ala Asp Pro His Val Ser Ala Gin Leu Gly Arg Asn Ala Thr 170 175 180 185 GGG GTG CTG ATC GCG GCC GCA GCC GAG GAG GAC GGC GGC GTG TAC TTC 687 Gly Val Leu lie Ala Ala Ala Ala Glu Glu Asp Gly Gly Val Tyr Phe 190 195 200 CTG TAC GAC CGG CTC ATC GGC GAC GCC GGC GAC GAG GAG ACG CAG TTG 735 Leu Tyr Asp Arg Leu lie Gly Asp Ala Gly Asp Glu Glu Thr Gin Leu 205 210 215 GCG CTG ACG CTG CAG GTC GCG ACG GCC GGC GCG CAG GGC GCC GCG CGG 783 Ala Leu Thr Leu Gin Val Ala Thr Ala Gly Ala Gin Gly Ala Ala Arg 220 225 230 GAC GAG GAG AGG GAA CCA GCG ACC GGG CCC ACC CCC GGC CCG CCG CCC 831 Asp Glu Glu Arg Glu Pro Ala Thr Gly Pro Thr Pro Gly Pro Pro Pro 235 240 245 CAC CGC ACG ACG ACA CGC GCG CCC CCG CGG CGG CAC GGC GCG CGC TTC 879 His Arg Thr Thr Thr Arg Ala Pro Pro Arg Arg His Gly Ala Arg Phe 250 255 260 265 CGC GTG CTG CCG TAC CAC TCC CAC GTA TAC ACC CCG GGC GAT TCC TTT 927 Arg Val Leu Pro Tyr His Ser His Val Tyr Thr Pro Gly Asp Ser Phe 270 275 280 CTG CTA TCG GTG CGT CTG CAG TCT GAG TTT TTC GAC GAG GCT CCC TTC 975 Leu Leu Ser Val Arg Leu Gin Ser Glu Phe Phe Asp Glu Ala Pro Phe 285 290 295 TCG GCC AGC ATC GAC TGG TAC TTC CTG CGG ACG GCC GGC GAC TGC GCG 1023 Ser Ala Ser He Asp Trp Tyr Phe Leu Arg Thr Ala Gly Asp Cys Ala 300 305 310 CTC ATC CGC ATA TAC GAG ACG TGC ATC TTC CAC CCC GAG GCA CCG GCC 1071 Leu He Arg He Tyr Glu Thr Cys He Phe His Pro Glu Ala Pro Ala 315 320 325 TGC CTG CAC CCC GCC GAC GCG CAG TGC AGC TTC GCG TCG CCG TAC CGC 1119 Cys Leu His Pro Ala Asp Ala Gin Cys Ser Phe Ala Ser Pro Tyr Arg 330 335 340 345 TCC GAG ACC GTG TAC AGC CGG CTG TAC GAG CAG TGC CGC CCG GAC CCT 1167 Ser Glu Thr Val Tyr Ser Arg Leu Tyr Glu Gin Cys Arg Pro Asp Pro 350 355 360 GCC GGT CGC TGG CCG CAC GAG TGC GAG GGC GCC GCG TAC GCG GCG CCC 1215 Ala Gly Arg Trp Pro His Glu Cys Glu Gly Ala Ala Tyr Ala Ala Pro 365 370 375 GTT GCG CAC CTG CGT CCC GCC AAT AAC AGC GTA GAC CTG GTC TTT GAC 1263 Val Ala His Leu Arg Pro Ala Asn Asn Ser Val Asp Leu Val Phe Asp 380 385 390 GAC GCG CCG GCT GCG GCC TCC GGG CTT TAC GTC TTT GTG CTG CAG TAC 1311 Asp Ala Pro Ala Ala Ala Ser Gly Leu Tyr Val Phe Val Leu Gin Tyr 395 400 405 AAC GGC CAC GTG GAA GCT TGG GAC TAC TGC CTA GTC GTT ACT TCG GAC 1359 Asn Gly His Val Glu Ala Trp Asp Tyr Cys Leu Val Val Thr Ser Asp 410 415 420 425 CGT TTG GTG CGC GCG GTC ACC GAC CAC ACG CGC CCC GAG GCC GCA GCC 1407 Arg Leu Val Arg Ala Val Thr Asp His Thr Arg Pro Glu Ala Ala Ala 430 435 440 GCC GAC GCT CCC GAG CCA GGC CCA CCG CTC ACC AGC GAG CCG GCG GGG 1455 Ala Asp Ala Pro Glu Pro Gly Pro Pro Leu Thr Ser Glu Pro Ala Gly 445 450 455 GSG CCC ACC GGG CCC GCG CCC TGG CTT GTG GTG CTG GTG GGC GCG CTT 1503 Xxx Pro Thr Gly Pro Ala Pro Trp Leu Val Val Leu Val Gly Ala Leu 460 465 470 GGA CTC GCG GGA CTG GTG GGC ATC GCA GCC CTC GCC GTT CGG GTG TGC 1551 Gly Leu Ala Gly Leu Val Gly He Ala Ala Leu Ala Val Arg Val Cys 475 480 485 GCG CGC CGC GCA AGC CAG AAG CGC ACC TAC GAC ATC CTC AAC CCC TTC 1599 Ala Arg Arg Ala Ser Gin Lys Arg Thr Tyr Asp He Leu Asn Pro Phe 490 495 500 505 GGG CCC GTA TAC ACC AGC TTG CCG ACC AAC GAG CCG CTC GAC GTG GTG 1647 Gly Pro Val Tyr Thr Ser Leu Pro Thr Asn Glu Pro Leu Asp Val Val 510 515 520 GTG CCA GTT AGC GAC GAC GAA TTT TCC CTC GAC GAA GAC TCT TTT GCG 1695 Val Pro Val Ser Asp Asp Glu Phe Ser Leu Asp Glu Asp Ser Phe Ala 525 530 535 GAT GAC GAC AGC GAC GAT GAC GGG CCC GCT AGC AAC CCC CCT GCG GAT 1743 Asp Asp Asp Ser Asp Asp Asp Gly Pro Ala Ser Asn Pro Pro Ala Asp 540 545 550 GCC TAC GAC CTC GCC GGC GCC CCA GAG CCA ACT AGC GGG TTT GCG CGA 1791 Ala Tyr Asp Leu Ala Gly Ala Pro Glu Pro Thr Ser Gly Phe Ala Arg 555 560 565 GCC CCC GCC AAC GGC ACG CGC TCG AGT CGC TCT GGG TTC AAA GTT TGG 1839 Ala Pro Ala Asn Gly Thr Arg Ser Ser Arg Ser Gly Phe Lys Val Trp 570 575 580 585 TTT AGG GAC CCG CTT GAA GAC GAT GCC GCG CCA GCG CGG ACC CCG GCC 1887 Phe Arg Asp Pro Leu Glu Asp Asp Ala Ala Pro Ala Arg Thr Pro Ala 590 595 600 GCA CCA GAT TAC ACC GTG GTA GCA GCG CGA CTC AAG TCC ATC CTC CGC 1935 Ala Pro Asp Tyr Thr Val Val Ala Ala Arg Leu Lys Ser He Leu Arg 605 610 615 TAGGCGCCCC CCCCCGCGCG CTGTGCCGTC TGACGGAAAG CACCCGCGTG TAGGGCTGCA 1995 TATAAATGGA GCGCTCACAC AAAGCCTCGT GCGGCTGCTT CGAAG 2040 (2) INFORMATION FOR SEQ ID NO:58: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 617 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:58: Met Gly Leu Ala Arg Leu Val Val Pro His Arg Ala Gly Glu Pro Ala 1 5 10 15 Arg Ser Phe Ala Ala Cys Val Pro Arg Ala Ala Phe Arg Gly Thr Ala 20 25 30 Arg Ala Arg Gly Phe Glu Lys Gly He Trp Gin Cys Asn Pro Pro Arg 35 40 45 Arg Pro Gly Xxx Val Ala Pro Leu Leu Leu Pro Gin Leu Leu Leu Phe 50 55 60 Gly Leu Met Ala Glu Ala Lys Pro Ala Thr Glu Thr Pro Gly Ser Ala 65 70 75 80 Ser Val Asp Thr Val Phe Thr Ala Arg Ala Gly Ala Pro Val Phe Leu 85 90 95 Pro Gly Pro Ala Ala Arg Pro Asp Val Arg Ala Val Arg Gly Trp Ser 100 105 110 Val Leu Ala Ala Ala Cys Ser Pro Pro Val Pro Glu Pro Val Cys Leu 115 120 125 Asp Asp Arg Glu Cys Phe Thr Asp Val Ala Leu Asp Ala Ala Cys Leu 130 135 140 Arg Thr Ala Arg Val Ala Pro Leu Ala He Ala Glu Leu Ala Glu Arg 145 150 155 160 Pro Asp Ser Thr Gly Asp Lys Glu Phe Val Leu Ala Asp Pro His Val 165 170 175 Ser Ala Gin Leu Gly Arg Asn Ala Thr Gly Val Leu He Ala Ala Ala 180 185 190 Ala Glu Glu Asp Gly Gly Val Tyr Phe Leu Tyr Asp Arg Leu He Gly 195 200 205 Asp Ala Gly Asp Glu Glu Thr Gin Leu Ala Leu Thr Leu Gin Val Ala 210 215 220 Thr Ala Gly Ala Gin Gly Ala Ala Arg Asp Glu Glu Arg Glu Pro Ala 225 230 235 240 Thr Gly Pro Thr Pro Gly Pro Pro Pro His Arg Thr Thr Thr Arg Ala 245 250 255 Pro Pro Arg Arg His Gly Ala Arg Phe Arg Val Leu Pro Tyr His Ser 260 265 270 His Val Tyr Thr Pro Gly Asp Ser Phe Leu Leu Ser Val Arg Leu Gin 275 280 285 Ser Glu Phe Phe Asp Glu Ala Pro Phe Ser Ala Ser He Asp Trp Tyr 290 295 300 Phe Leu Arg Thr Ala Gly Asp Cys Ala Leu He Arg He Tyr Glu Thr 305 310 315 320 Cys He Phe His Pro Glu Ala Pro Ala Cys Leu His Pro Ala Asp Ala 325 330 335 Gin Cys Ser Phe Ala Ser Pro Tyr Arg Ser Glu Thr Val Tyr Ser Arg 340 345 350 Leu Tyr Glu Gin Cys Arg Pro Asp Pro Ala Gly Arg Trp Pro His Glu 355 360 365 Cys Glu Gly Ala Ala Tyr Ala Ala Pro Val Ala His Leu Arg Pro Ala 370 375 380 Asn Asn Ser Val Asp Leu Val Phe Asp Asp Ala Pro Ala Ala Ala Ser 385 390 395 400 Gly Leu Tyr Val Phe Val Leu Gin Tyr Asn Gly His Val Glu Ala Trp 405 410 415 . Asp Tyr Cys Leu Val Val Thr Ser Asp Arg Leu Val Arg Ala Val Thr 420 425 430 Asp His Thr Arg Pro Glu Ala Ala Ala Ala Asp Ala Pro Glu Pro Gly 435 440 445 Pro Pro Leu Thr Ser Glu Pro Ala Gly Xxx Pro Thr Gly Pro Ala Pro 450 455 460 Trp Leu Val Val Leu Val Gly Ala Leu Gly Leu Ala Gly Leu Val Gly 465 470 475 480 He Ala Ala Leu Ala Val Arg Val Cys Ala Arg Arg Ala Ser Gin Lys 485 490 495 Arg Thr Tyr Asp He Leu Asn Pro Phe Gly Pro Val Tyr Thr Ser Leu 500 505 510 Pro Thr Asn Glu Pro Leu Asp Val Val Val Pro Val Ser Asp Asp Glu 515 520 525 Phe Ser Leu Asp Glu Asp Ser Phe Ala Asp Asp Asp Ser Asp Asp Asp 530 535 540 Gly Pro Ala Ser Asn Pro Pro Ala Asp Ala Tyr Asp Leu Ala Gly Ala 545 , 550 555 560 Pro Glu Pro Thr Ser Gly Phe Ala Arg Ala Pro Ala Asn Gly Thr Arg 565 570 575 Ser Ser Arg Ser Gly Phe Lys Val Trp Phe Arg Asp Pro Leu Glu Asp 580 585 590 Asp Ala Ala Pro Ala Arg Thr Pro Ala Ala Pro Asp Tyr Thr Val Val 595 600 605 Ala Ala Arg Leu Lys Ser He Leu Arg 610 615 (2) INFORMATION FOR SEQ ID NO:59: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 50 amino acids (B) TYPE: amino acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (vi) ORIGINAL SOURCE: (A) ORGANISM: Herpes Simplex Virus Type 1 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:59: Trp Leu Arg Phe Asp Val Pro Thr Ser Cys Ala Glu Met Arg He Tyr 1 5 10 15 Glu Ser Cys Leu Tyr His Pro Gin Leu Pro Glu Cys Leu Ser Pro Ala 20 25 30 Asp Ala Pro Cys Ala Ala Ser Thr Trp Thr Ser Arg Leu Ala Val Arg 35 40 45 Ser Tyr 50 (2) INFORMATION FOR SEQ ID NO:60: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 52 amino acids (B) TYPE: amino acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (vi) ORIGINAL SOURCE: (A) ORGANISM: Pseudorabies Virus (xi) SEQUENCE DESCRIPTION: SEQ ID NO:60: Trp Tyr Tyr Ala Arg Ala Pro Pro Arg Cys Leu Leu Tyr Tyr Val Tyr 1 5 10 15 Glu Pro Cys He Tyr His Pro Arg Ala Pro Glu Cys Leu Arg Pro Val 20 25 30 Asp Pro Ala Cys Ser Phe Thr Ser Pro Ala Arg Ala Ala Leu Val Ala 35 40 45 Arg Arg Ala Tyr 50 (2) INFORMATION FOR SEQ ID NO:61: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 52 amino acids (B) TYPE: amino acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (vi) ORIGINAL SOURCE: (A) ORGANISM: Varicella-Zoster Virus (xi) SEQUENCE DESCRIPTION: SEQ ID NO:61: Trp Leu Tyr Val Pro He Asp Pro Thr Cys Gin Pro Met Arg Leu Tyr 1 5 10 15 Ser Thr Cys Leu Tyr His Pro Asn Ala Pro Gin Cys Leu Ser His Met 20 25 30 Asn Ser Gly Cys Thr Phe Thr Ser Pro His Leu Ala Gin Arg Val Ala 35 40 45 Ser Thr Val Tyr 50 (2) INFORMATION FOR SEQ ID NO:62: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 52 amino acids (B) TYPE: amino acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (vi) ORIGINAL SOURCE: (A) ORGANISM: Bovine Herpesvirus-1 (IBR Virus) (xi) SEQUENCE DESCRIPTION: SEQ ID NO:62: Trp Tyr Phe Leu Arg Thr Ala Gly Asp Cys Ala Leu He Arg He Tyr 1 5 10 15 Glu Thr Cys He Phe His Pro Glu Ala Pro Ala Cys Leu His Pro Ala 20 25 30 Asp Ala Gin Cys Ser Phe Ala Ser Pro Tyr Arg Ser Glu Thr Val Tyr 35 40 45 Ser Arg Leu Tyr 50 (2) INFORMATION FOR SEQ ID NO:63: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 84 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 34..84 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:63: TTGGGCTGCA GGTCGACTCT AGAGGATCCC CTA TGG TAC AAG ATC GAG AGC GGG 54 Trp Tyr Lys He Glu Ser Gly 1 5 TGC GCC CGG CCG CTG TAC TAC ATG GAG TAC 84 Cys Ala Arg Pro Leu Tyr Tyr Met Glu Tyr 10 15 (2) INFORMATION FOR SEQ ID NO:64: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 17 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:64: Trp Tyr Lys He Glu Ser Gly Cys Ala Arg Pro Leu Tyr Tyr Met Glu 1 5 10 15 Tyr (2) INFORMATION FOR SEQ ID NO:65: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 84 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 1..84 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:65: TCC GGG CTT TAC GTC TTT GTG CTG CAG TAC AAC GGC CAC GTG GAA GCT 48 Ser Gly Leu Tyr Val Phe Val Leu Gin Tyr Asn Gly His Val Glu Ala 1 5 10 15 TGG GAC TAC AGC CTA GTC GTT ACT TCG GAC CGT TTG 84 Trp Asp Tyr Ser Leu Val Val Thr Ser Asp Arg Leu 20 25 (2) INFORMATION FOR SEQ ID NO:66: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 28 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:66: Ser Gly Leu Tyr Val Phe Val Leu Gin Tyr Asn Gly His Val Glu Ala 1 5 10 15 Trp Asp Tyr Ser Leu Val Val Thr Ser Asp Arg Leu 20 25 (2) INFORMATION FOR SEQ ID NO:67: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 84 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:67: CCTTCACCGC CGCCGGAAGG CTCCATCGTG TCCATCCCCA TCCTCGAGCT CGAATTGGGG 60 ATCCTCTAGA GTCGACCTGC AGCC 84 (2) INFORMATION FOR SEQ ID NO:68: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 60 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAM /KEY: CDS (B) LOCATION: 28..33 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:68: CTATAGAATA CACGGAATTC GAGCTCG CCC GGG TGAGCGGCCT AGGCCCTCCC 53 Pro Gly 1 CCGACCG 60 (2) INFORMATION FOR SEQ ID NO:69: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 2 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:69: Pro Gly 1 (2) INFORMATION FOR SEQ ID NO:70: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 90 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 1..33 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:70: ATG GCC GAG GCC AAG CCC GCG ACC GAA ACC CCG GGGATCCTCT AGAGTCGACG 53 Met Ala Glu Ala Lys Pro Ala Thr Glu Thr Pro 1 5 10 TCTGGGGCGC GGGGGTGGTG CTCTTCGAGA CGCTGCC 90 (2) INFORMATION FOR SEQ ID NO:71: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 11 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:71: Met Ala Glu Ala Lys Pro Ala Thr Glu Thr Pro 1 5 10 (2) INFORMATION FOR SEQ ID NO:72: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 90 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 28.. 8 (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 49..90 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:72: ACCTTTGCGC ATCTCCACAG CTCAACA ATG AAG TGG GCA ACG TGG ATC GAT 51 Met Lys Trp Ala Thr Trp He Asp 1 5 1 CCC GTC GTT TTA CAA CGT CGT GAC TGG GAA AAC CCT GGC 90 Pro Val Val Leu Gin Arg Arg Asp Trp Glu Asn Pro Gly 5 10 (2) INFORMATION FOR SEQ ID NO:73: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 7 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:73: Met Lys Trp Ala Thr Trp He 1 5 (2) INFORMATION FOR SEQ ID NO:74: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 14 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:74: Asp Pro Val Val Leu Gin Arg Arg Asp Trp Glu Asn Pro Gly 1 5 10 (2) INFORMATION FOR SEQ ID NO:75: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 216 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 1..84 (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 134..190 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:75: TGG AGC CCG TCA GTA TCG GCG GAA ATC CAG CTG AGC GCC GGT CGC TAC 48 Trp Ser Pro Ser Val Ser Ala Glu He Gin Leu Ser Ala Gly Arg Tyr 1 5 10 15 CAT TAC CAG TTG GTC TGG TGT CAA AAA GAT CTA GAA TAAGCTAGAG 94 His Tyr Gin Leu Val Trp Cys Gin Lys Asp Leu Glu 20 25 GATCGATCCC CTATGGCGAT CATCAGGGCC CGATCCCCT ATG GCG ATC ATC AGG 148 Met Ala He He Arg 1 5 GCC CGG GCC CGG AAC GAC GGC TAC CGC CAC GTG GCC TCC GCC 190 Ala Arg Ala Arg Asn Asp Gly Tyr Arg His Val Ala Ser Ala 10 15 TGACCCGGCC CCGCCCGACT CCCCCG 216 (2) INFORMATION FOR SEQ ID NO:76: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 28 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:76: Trp Ser Pro Ser Val Ser Ala Glu He Gin Leu Ser Ala Gly Arg Tyr 1 5 10 15 His Tyr Gin Leu Val Trp Cys Gin Lys Asp Leu Glu 20 25 (2) INFORMATION FOR SEQ ID NO:77: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 19 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:77: Met Ala He He Arg Ala Arg Ala Arg Asn Asp Gly Tyr Arg His Val 1 5 10 15 Ala Ser Ala (2) INFORMATION FOR SEQ ID NO:78: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 90 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 49..90 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:78: GGCGCCTGGT GTCCGTCGAC TCTAGAGTCG ACCTGCAGCC CAAGCTCT AGC AAC CCC 57 Ser Asn Pro 1 CCT GCG GAT GCC TAC GAC CTC GCC GGC GCC CCA 90 Pro Ala Asp Ala Tyr Asp Leu Ala Gly Ala Pro 5 10 (2) INFORMATION FOR SEQ ID NO:79: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 14 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:79: Ser Asn Pro Pro Ala Asp Ala Tyr Asp Leu Ala Gly Ala Pro 1 5 10 (2) INFORMATION FOR SEQ ID NO:80: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 1880 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (vi) ORIGINAL SOURCE: (A) ORGANISM: Parainfluenza-3 virus (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 73..1788 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:80: AGGAACAAAG TTGTTCAACA CAGCAGCAGC GAACAGACCC AAAGGCAGCG CAGAGGCGAC 60 ACCGAACCCA AA ATG GAA TAT TGG AAA CAC ACA AAC AGC ACA AAA AAC 108 Met Glu Tyr Trp Lys His Thr Asn Ser Thr Lys Asn 1 5 10 ACC AAC AAT GAA ACC GAA ACA ACC AGA GGC AAA CAC AGT AGC AAG GTT 156 Thr Asn Asn Glu Thr Glu Thr Thr Arg Gly Lys His Ser Ser Lys Val 15 20 25 ACA AAT ATC ATA ATG TAC ACC TTC TGG ACA ATA ACA TCA ACA ATA TTA 204 Thr Asn He He Met Tyr Thr Phe Trp Thr He Thr Ser Thr He Leu 30 35 40 TTA GTC ATT TTT ATA ATG ATA TTG ACA AAC TTA ATT CAA GAG AAC AAT 252 Leu Val He Phe He Met He Leu Thr Asn Leu He Gin Glu Asn Asn 45 50 55 60 CAT AAT AAA TTA ATG TTG CAG GAA ATA AGA AAA GAA TTC GCG GCA ATA 300 His Asn Lys Leu Met Leu Gin Glu He Arg Lys Glu Phe Ala Ala He 65 70 75 GAC ACC AAG ATT CAG AGG ACC TCG GAT GAC ATT GGA ACC TCA ATA CAG 348 Asp Thr Lys He Gin Arg Thr Ser Asp Asp He Gly Thr Ser He Gin 80 85 90 TCA GGA ATA AAT ACA AGA CTT CTC ACA ATT CAG AGT CAT GTT CAA AAC 396 Ser Gly He Asn Thr Arg Leu Leu Thr He Gin Ser His Val Gin Asn 95 100 105 TAT ATC CCA CTA TCA CTA ACA CAA CAA ATG TCA GAT CTC AGA AAA TTT 444 Tyr He Pro Leu Ser Leu Thr Gin Gin Met Ser Asp Leu Arg Lys Phe 110 115 120 ATC AAT GAT CTA ACA AAT AAA AGA GAA CAT CAA GAA GTG CCA ATA CAG 492 He Asn Asp Leu Thr Asn Lys Arg Glu His Gin Glu Val Pro He Gin 125 130 135 140 AGA ATG ACT CAT GAT AGA GGT ATA GAA CCC CTA AAT CCA GAC AAG TTC 540 Arg Met Thr His Asp Arg Gly He Glu Pro Leu Asn Pro Asp Lys Phe 145 150 155 TGG AGG TGT ACA TCT GGT AAC CCA TCT CTA ACA AGT AGT CCT AAG ATA 588 Trp Arg Cys Thr Ser Gly Asn Pro Ser Leu Thr Ser Ser Pro Lys He 160 165 170 AGG TTA ATA CCA GGG CCA GGT TTA TTA GCA ACA TCT ACT ACA GTA AAT 636 Arg Leu He Pro Gly Pro Gly Leu Leu Ala Thr Ser Thr Thr Val Asn 175 180 185 GGC TGT ATT AGA ATC CCA TCG TTA GCA ATC AAT CAT TTA ATC TAC GCT 684 Gly Cys He Arg He Pro Ser Leu Ala He Asn His Leu He Tyr Ala 190 195 200 TAC ACC TCT AAT CTT ATC ACC CAG GGC TGT CAA AAT ATA GGG AAA TCT 732 Tyr Thr Ser Asn Leu He Thr Gin Gly Cys Gin Asn He Gly Lys Ser 205 210 215 220 TAC CAA GTA CTA CAA ATA GGG ATA ATT ACT ATA AAT TCG GAC CTA GTA 780 Tyr Gin Val Leu Gin He Gly He He Thr He Asn Ser Asp Leu Val 225 230 235 CCT GAT TTA AAT CCC AGA GTC ACA CAT ACA TTT AAT ATT GAT GAT AAT 828 Pro Asp Leu Asn Pro Arg Val Thr His Thr Phe Asn He Asp Asp Asn 240 245 250 AGG AAA TCT TGC TCT CTG GCA CTA TTG AAT ACA GAT GTT TAT CAG TTA 876 Arg Lys Ser Cys Ser Leu Ala Leu Leu Asn Thr Asp Val Tyr Gin Leu 255 260 265 TGC TCA ACA . CCA AAA GTT GAT GAG AGA TCC GAT TAT GCA TCA ACA GGT 924 Cys Ser Thr Pro Lys Val Asp Glu Arg Ser Asp Tyr Ala Ser Thr Gly 270 275 280 ATT GAG GAT ATT GTA CTT GAC ATT GTC ACT AAT AAT GGA TTA ATT ATA 972 He Glu Asp He Val Leu Asp He Val Thr Asn Asn Gly Leu He He 285 290 295 300 ACA ACA AGG TTT ACA AAT AAT AAT ATA ACT TTT GAT AAA CCG TAT GCA 1020 Thr Thr Arg Phe Thr Asn Asn Asn He Thr Phe Asp Lys Pro Tyr Ala 305 310 315 GCA TTG TAT CCA TCA GTA GGA CCA GGA ATC TAT TAT AAG GGT AAA GTT 1068 Ala Leu Tyr Pro Ser Val Gly Pro Gly He Tyr Tyr Lys Gly Lys Val 320 325 330 ATC TTT CTC GGA TAT GGA GGT CTA GAG CAT GAA GAA AAC GGA GAC GTA 1116 He Phe Leu Gly Tyr Gly Gly Leu Glu His Glu Glu Asn Gly Asp Val 335 340 345 ATA TGT AAT ACA ACT GGT TGT CCT GGC AAA ACA CAG AGA GAC TGT AAT 1164 He Cys Asn Thr Thr Gly Cys Pro Gly Lys Thr Gin Arg Asp Cys Asn 350 355 360 CAG GCT TCT TAT AGC CCA TGG TTC TCA AAT AGG AGA ATG GTA AAC TCT 1212 Gin Ala Ser Tyr Ser Pro Trp Phe Ser Asn Arg Arg Met Val Asn Ser 365 370 375 380 ATT ATT GTT GTT GAT AAA GGC ATA GAT GCA ACT TTT AGC TTG AGG GTG 1260 He He Val Val Asp Lys Gly He Asp Ala Thr Phe Ser Leu Arg Val 385 390 395 TGG ACT ATT CCA ATG AGC CAA AAT TAT TGG GGA TCA GAA GGA AGA TTA 1308 Trp Thr He Pro Met Ser Gin Asn Tyr Trp Gly Ser Glu Gly Arg Leu 400 405 410 CTT TTA TTA GGT GAC AGA ATA TAC ATA TAT ACT AGA TCC ACA AGT TGG 1356 Leu Leu Leu Gly Asp Arg He Tyr He Tyr Thr Arg Ser Thr Ser Trp 415 420 425 CAC AGT AAA TTA CAG TTA GGG GTA ATT GAT ATT TCT GAT TAT AAT AAT 1404 His Ser Lys Leu Gin Leu Gly Val He Asp He Ser Asp Tyr Asn Asn 430 435 440 ATA AGA ATA AAT TGG ACT TGG CAT AAT GTA CCA TCA CGG CCA GGA AAT 1452 He Arg He Asn Trp Thr Trp His Asn Val Pro Ser Arg Pro Gly Asn 445 450 455 460 GAT GAA TGT CCA TGG GGT CAT TCA TGC CCA GAC GGA TGT ATA ACA GGA 1500 Asp Glu Cys Pro Trp Gly His Ser Cys Pro Asp Gly Cys He Thr Gly 465 470 475 GTT TAC ACT GAT GCA TAT CCG CTA AAC CCA TCG GGG AGT GTT GTA TCA 1548 Val Tyr Thr Asp Ala Tyr Pro Leu Asn Pro Ser Gly Ser Val Val Ser 480 485 490 TCA GTA ATT CTT GAC TCA CAA AAG TCT AGA GAA AAC CCA ATC ATT ACC 1596 Ser Val He Leu Asp Ser Gin Lys Ser Arg Glu Asn Pro He He Thr 495 500 505 TAC TCA ACA GCT ACA AAT AGA ATA AAT GAA TTA GCT ATA TAT AAC AGA 1644 Tyr Ser Thr Ala Thr Asn Arg He Asn Glu Leu Ala He Tyr Asn Arg 510 515 520 ACA CTT CCA GCT GCA TAT ACA ACA ACA AAT TGT ATC ACA CAT TAT GAT 1692 Thr Leu Pro Ala Ala Tyr Thr Thr Thr Asn Cys He Thr His Tyr Asp 525 530 535 540 AAA GGG TAT TGT TTT CAT ATA GTA GAA ATA AAT CAC AGA AGT TTG AAT 1740 Lys Gly Tyr Cys Phe His He Val Glu He Asn His Arg Ser Leu Asn 545 550 555 ACG TTT CAA CCT ATG TTA TTC AAA ACA GAA GTT CCA AAA AAC TGC AGC 1788 Thr Phe Gin Pro Met Leu Phe Lys Thr Glu Val Pro Lys Asn Cys Ser 560 565 570 TAAATGATCA TCGCATATCG GATGCCAGAT GACATTAAAA GAGACCACCA GACAGACAAC 1848 ACAGGAGATG ATGCAAGATA TAAAGGAATA AT 1880 (2) INFORMATION FOR SEQ ID NO:81: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 572 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO:81: Met Glu Tyr Trp Lys His Thr Asn Ser Thr Lys Asn Thr Asn Asn Glu 1 5 10 15 Thr Glu Thr Thr Arg Gly Lys His Ser Ser Lys Val Thr Asr le He 20 25 3. Met Tyr Thr Phe Trp Thr He Thr Ser Thr He Leu Leu Val He Phe 35 40 45 He Met He Leu Thr Asn Leu He Gin Glu Asn Asn His Asn Lys Leu 50 55 60 Met Leu Gin Glu He Arg Lys Glu Phe Ala Ala He Asp Thr Lys He 65 70 75 80 Gin Arg Thr Ser Asp Asp He Gly Thr Ser He Gin Ser Gly He Asn 85 90 95 Thr Arg Leu Leu Thr He Gin Ser His Val Gin Asn Tyr He Pro Leu 100 105 110 Ser Leu Thr Gin Gin Met Ser Asp Leu Arg Lys Phe He Asn Asp Leu 115 120 125 Thr Asn Lys Arg Glu His Gin Glu Val Pro He Gin Arg Met Thr His 130 135 140 Asp Arg Gly He Glu Pro Leu Asn Pro Asp Lys Phe Trp Arg Cys Thr 145 150 155 160 Ser Gly Asn Pro Ser Leu Thr Ser Ser Pro Lys He Arg Leu He Pro 165 170 175 Gly Pro Gly Leu Leu Ala Thr Ser Thr Thr Val Asn Gly Cys He Arg 180 185 190 He Pro Ser Leu Ala He Asn His Leu He Tyr Ala Tyr Thr Ser Asn 195 200 205 Leu He Thr Gin Gly Cys Gin Asn He Gly Lys Ser Tyr Gin Val Leu 210 215 220 Gin He Gly He He Thr He Asn Ser Asp Leu Val Pro Asp Leu Asn 225 230 235 240 Pro Arg Val Thr His Thr Phe Asn He Asp Asp Asn Arg Lys Ser Cys 245 250 255 Ser Leu Ala Leu Leu Asn Thr Asp Val Tyr Gin Leu Cys Ser Thr Pro 260 265 270 Lys Val Asp Glu Arg Ser Asp Tyr Ala Ser Thr Gly He Glu Asp He 275 280 285 Val Leu Asp He Val Thr Asn Asn Gly Leu He He Thr Thr Arg Phe 290 295 300 Thr Asn Asn Asn He Thr Phe Asp Lys Pro Tyr Ala Ala Leu Tyr Pro 305 310 315 320 Ser Val Gly Pro Gly He Tyr Tyr Lys Gly Lys Val He Phe Leu Gly 325 330 335 Tyr Gly Gly Leu Glu His Glu Glu Asn Gly Asp Val He Cys Asn Thr 340 345 350 Thr Gly Cys Pro Gly Lys Thr Gin Arg Asp Cys Asn Gin Ala Ser Tyr 355 360 365 Ser Pro Trp Phe Ser Asn Arg Arg Met Val Asn Ser He He Val Val 370 375 380 Asp Lys Gly He Asp Ala Thr Phe Ser Leu Arg Val Trp Thr He Pro 385 390 395 400 Met Ser Gin Asn Tyr Trp Gly Ser Glu Gly Arg Leu Leu Leu Leu Gly 405 410 415 Asp Arg He Tyr He Tyr Thr Arg Ser Thr Ser Trp His Ser Lys Leu 420 425 430 Gin Leu Gly Val He Asp He Ser Asp Tyr Asn Asn He Arg He Asn 435 440 445 Trp Thr Trp His Asn Val Pro Ser Arg Pro Gly Asn Asp Glu Cys Pro 450 455 460 Trp Gly His Ser Cys Pro Asp Gly Cys He Thr Gly Val Tyr Thr Asp 465 470 475 480 Ala Tyr Pro Leu Asn Pro Ser Gly Ser Val Val Ser Ser Val He Leu 485 490 495 Asp Ser Gin Lys Ser Arg Glu Asn Pro He He Thr Tyr Ser Thr Ala 500 505 510 Thr Asn Arg He Asn Glu Leu Ala He Tyr Asn Arg Thr Leu Pxo Ala 515 520 525 Ala Tyr Thr Thr Thr Asn Cys He Thr His Tyr Asp Lys Gly Tyr Cys 530 535 540 Phe His He Val Glu He Asn His Arg Ser Leu Asn Thr Phe Gin Pro 545 550 555 560 Met Leu Phe Lys Thr Glu Val Pro Lys Asn Cys Ser 565 570 (2) INFORMATION FOR SEQ ID NO:82: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 39 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:82: GGGAATTCTG CAGGTCACAT CATACAATTC TAATCTAAG 39 (2) INFORMATION FOR SEQ ID NO:83: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 43 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:83: GGGAATTCTG CAGGCTTTAA AAGAGAGAAT TTCCGTTTGG CTA 43 (2) INFORMATION FOR SEQ ID NO:84: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 42 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:84: ACGTCGGATC CCTTACCAAA CCACGTCTTA CTCTTGTTTT CC 42 (2) INFORMATION FOR SEQ ID NO:85: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 40 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:85: ACATAGGATC CCATGGGAGA AAACATAACA CAGTGGAACC 40 (2) INFORMATION FOR SEQ ID NO:86: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 42 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:86: CTTGGATCCT CATCCATACT GAGTCCCTGA GGCCTTCTGT TC (2) INFORMATION FOR SEQ ID NO:87: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 31 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO ( iv) ANTI -SENSE : NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:87: CATAGATCTT GTGGTGCTGT CCGACTTCGC A 31 (2) INFORMATION FOR SEQ ID NO:88: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 40 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:88: CGTCGGATCC CTCACAGTTC CACATCATTG TCTTTGGGAT 40 (2) INFORMATION FOR SEQ ID NO:89: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 41 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:89: CTTAGGATCC CATGGCTCTT AGCAAGGTCA AACTAAATGA C 41 (2) INFORMATION FOR SEQ ID NO:90: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 41 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:90: CGTTGGATCC CTAGATCTGT GTAGTTGATT GATTTGTGTG A 41 (2) INFORMATION FOR SEQ ID NO:91: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 41 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:91: CTCTGGATCC TCATACCCAT CATCTTAAAT TCAAGACATT A 41 (2) INFORMATION FOR SEQ ID NO:92: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 40 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:92: TGCAGGATCC TCATTTACTA AAGGAAAGAT TGTTGAT 40 (2) INFORMATION FOR SEQ ID NO:93: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 35 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:93: CTCTGGATCC TACAGCCATG AGGATGATCA TCAGC 35 (2) INFORMATION FOR SEQ ID NO:94: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 34 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI -SENSE : NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:9 : TTATGGATCC TGCTGCTGTG TTGAACAACT TTGT 34 (2) INFORMATION FOR SEQ ID NO:95: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH:38 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:95: CCGCGGATCC CATGACCATC ACAACCATAA TCATAGCC 38 (2) INFORMATION FOR SEQ ID NO:96: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 43 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:96: CGTCGGATCC CTTAGCTGCA GTTTTTTGGA ACTTCTGTTT TGA 43 (2) INFORMATION FOR SEQ ID NO:97: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 40 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:97: CATAGGATCC CATGGAATAT TGGAAACACA CAAACAGCAC 40 (2) INFORMATION FOR SEQ ID NO:98: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 31 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:98: TATAGATCTT AGACTTACAA CCCTAAAAAA C 31 (2) INFORMATION FOR SEQ ID NO:99: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 36 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: double (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO:99: CGTGGATCCA ACTCTATAAT GTGTGAAACA ATATAG 36

Claims: hat is claimed is: 1. A recombinant infectious bovine rhinotracheitis virus designated S-IBR-052 (ATCC Accession No. VR 2443) 2. The recombinant infectious bovine rhinotracheitis virus of claim 1, further comprising a foreign DNA sequence inserted into an infectious bovine rhinotracheitis virus genomic DNA, wherein the foreign DNA sequence is inserted within a BamHI C fragment of the infectious bovine rhinotracheitis virus genomic DNA and is capable of being expressed in a infectious bovine rhinotracheitis virus infected host cell. 3. The recombinant infectious bovine rhinotracheitis virus of claim 2, wherein the foreign DNA sequence is inserted within a larger BamHI-Kpnl subfragment of the BamHI C fragment of the infectious bovine rhinotracheitis virus genomic DNA. 4. The recombinant infectious bovine rhinotracheitis virus of claim 3, wherein the foreign DNA sequence is inserted within a Hindlll site located within the larger BamHI-Kpnl subfragment of the infectious bovine rhinotracheitis viru~ genomic DNA. 5. The recombinant infectious bovine rhinotracheitis virus of claim 4, wherein the foreign DNA sequence is inserted within a Xbal site located within the larger BamHI-Kpnl subfragment of the infectious bovine rhinotracheitis virus genomic DNA. 6. The recombinant infectious bovine rhinotracheitis virus of claim 2, wherein the foreign DNA sequence is inserted within a smaller Kpnl-BamHI subfragment of the BamHI C fragment of the infectious bovine rhinotracheitis virus genomic DNA. 7. The recombinant infectious bovine rhinotracheitis virus of claim 6, wherein the foreign DNA sequence is inserted within a EcoRV site located within the smaller Kpnl-BamHI subfragment of the infectious bovine rhinotracheitis virus genomic DNA. 8. The recombinant infectious bovine rhinotracheitis virus of claim 2, further comprising a deletion in a non-essential region of the infectious bovine rhinotracheitis virus genomic DNA. 9. The recombinant infectious bovine rhinotracheitis virus of claim 8, wherein the deletion is in a US2, gG or gE gene regions. 10. The recombinant infectious bovine rhinotracheitis virus of claim 2, wherein the foreign DNA sequence encodes a polypeptide. 11. The recombinant infectious bovine rhinotracheitis virus of claim 10, wherein the polypeptide is antigenic in an animal into which the recombinant infectious bovine rhinotracheitis virus is introduced. 12. The recombinant infectious bovine rhinotracheitis virus of claim 10, wherein the polypeptide is E. coli beta-galactosidase. 13. The recombinant infectious bovine rhinotracheitis virus of claim 2, wherein the foreign DNA sequence encodes a cytokine. 14. The recombinant infectious bovine rhinotracheitis virus of claim 13, wherein the cytokine is selected from a group consisting of: chicken myelomonocytic growth factor (c GF) , chicken interferon (cIFN) , interleukin-2, interleukin-6, interleukin-12, interferons, granulocyte- macrophage colony stimulating factors, and interleukin receptors. 15. The recombinant infectious bovine rhinotracheitis virus of claim 11, wherein the antigenic polypeptide equine influenza virus neuraminidase or hemagglutinin. 16. The recombinant infectious bovine rhinotracheitis virus of claim 11, wherein the antigenic polypeptide is selected from the group consisting of: equine influenza virus type A/Alaska i neuraminidase and hemagglutinin, equine influenza virus type A/Prague 56 neuraminidase and hemagglutinin, equine influenza virus type A/Miami 63 neuraminidase and hemagglutinin, equine influenza virus type A/Kentucky 81 neuraminidase and hemagglutinin, equine herpesvirus type 1 glycoprotein B, and equine herpesvirus type 1 glycoprotein D. 17. The recombinant infectious bovine rhinotracheitis virus of claim 11, wherein the antigenic polypeptide is derived from the group consisting of: hog cholera virus gEl, hog cholera virus gE2, swine influenza virus hemagglutinin, neuraminidase, matrix and nucleoprotein, pseudorabies virus gB, gC and gD, and PRRS virus 0RF7. 18. The recombinant infectious bovine rhinotracheitis virus of claim 11, wherein the antigenic polypeptide is selected from the group consisting of: bovine respiratory syncytial virus attachment protein (BRSV G) , bovine respiratory syncytial virus fusion protein (BRSV F) , bovine respiratory syncytial virus nucleocapsid protein (BRSV N) , bovine coronavirus, bovine rotavirus glycoprotein 38, bovine parainfluenza virus type 3 fusion protein, and the bovine parainfluenza virus type 3 hemagglutinin neuraminidase. 19. The recombinant infectious bovine rhinotracheitis virus of claim 18, which is designated S-IBR-071. 20. The recombinant infectious bovine rhinotracheitis virus of claim 18, which is designated S-IBR-072. 21. The recombinant infectious bovine rhinotracheitis virus of claim 18, which is designated S-IBR-073. 22. The recombinant infectious bovine rhinotracheitis virus of claim 11, wherein the antigenic polypeptide is bovine viral diarrhea virus (BVDV) glycoprotein 48 or glycoprotein 53. 23. The recombinant infectious bovine rhinotracheitis virus of claim 22, which is designated S-IBR-069. 24. The recombinant infectious bovine rhinotracheitis virus of claim 22, which is designated S-IBR-086. 25. The recombinant infectious bovine rhinotracheitis virus of claim 22, which is designated S-IBR-074. 26. The recombinant infectious bovine rhinotracheitis virus of claim 11, wherein the foreign DNA sequence encodes an antigenic polypeptide which is derived or derivable from a group consisting of: marek's disease virus gA, marek's disease virus gB, marek's disease virus gD, Newcastle disease virus HN, Newcastle disease virus F, infectious laryngotracheitis virus gB, infectious laryngotracheitis virus gl, infection;: laryngotracheitis virus gD, infectious bursal disease virus VP2, infectious bursal disease virus VP3, infectious bursal disease virus VP4, infectious bursal disease virus polyprotein, infectious bronchitis virus spike, infectious bronchitis virus matrix and chick anemia virus. 27. The recombinant infectious bovine rhinotracheitis virus of claim 2, wherein the foreign DNA sequence is under control of an endogenous infectious bovine rhinotracheitis virus promoter. 28. The recombinant infectious bovine rhinotracheitis virus of claim 27, wherein the foreign DNA sequence is under control of a heterologous herpesvirus promoter. 29. The recombinant infectious bovine rhinotracheitis virus of claim 28, wherein the promoter is selected from: herpes simplex virus type 1 (HSV - 1) ICP4 protein promoter, a pseudorabies virus (PRV) glycoprotein X promoter, PRV gX, HCMV immediate early, marek's disease virus gA, marek's disease virus gB, marek's disease virus gD, infectious laryngotracheitis virus gB, BHV-1.1 VP8 and infectious laryngotracheitis virus gD. 30. A homology vector for producing a recombinant infectious bovine rhinotracheitis virus by inserting foreign DNA into the viral genome of a infectious bovine rhinotracheitis virus which comprises a double-stranded DNA molecule consisting essentially of: a) double stranded foreign DNA not usually present within the infectious bovine rhinotracheitis virus viral genome; b) at one end the foreign DNA, double- stranded infectious bovine rhinotracheitis virus DNA homologous to the viral genome located at one side of the BamHI C fragment of the infectious bovine rhinotracheitis virus viral genome; and c) at the other end of the foreign DNA, double-stranded infectious bovine rhinotracheitis virus DNA homologous to the viral genome located at the other side of the BamHI C fragment of the infectious bovine rhinotracheitis virus viral genome. 31. The homology vector of claim 30, wherein the foreign DNA sequence encodes a cytokine. 32. The homology vector of claim 31, wherein the cytokine is selected form a group consisting of: chicken myelomonocytic growth factor (cMGF) , chicken interferon (cIFN) , interleukin-2, interleukin-6, interleukin-12, interferons, granulocyte-macrophage colonystimulating factors, and interleukin receptors. 33. The homology vector of claim 32, wherein the foreign DNA sequence encodes a polypeptide. 34. A homology vector of claim 33, wherein the polypeptide is antigenic in the animal into which the recombinant infectious bovine rhinotracheitis virus is introduced. 35. The homology vector of claim 34, wherein the antigenic polypeptide is selected from a group consisting of: hog cholera virus gEl, hog cholera virus gE2, swine influenza virus hemagglutinin, neuraminidase, matrix and nucleoprotein, pseudorabies virus gE, pseudorabies virus gB, pseudorabies virus gC, PRRS virus 0RF7, and hepatitis B virus core protein. 36. The homology vector of claim 34, wherein the antigenic polypeptide is selected from the group consisting of : equine influenza virus type A/Alaska 91 neuraminidase and hemagglutinin, equine influenza virus type A/Prague 56 neuraminidase and hemagglutinin, equine influenza virus type A/Miami 63 neuraminidase and hemagglutinin, equine influenza virus type A/Kentucky 81 neuraminidase and hemagglutinin, equine herpesvirus type 1 glycoprotein B, and equine herpesvirus type 1 glycoprotein D. 37. The homology vector of claim 34, wherein the antigenic polypeptide is selected from the group consisting of: bovine respiratory syncytial virus attachment protein (BRSV G) , bovine respiratory syncytial virus fusion protein (BRSV F) , bovine respiratory syncytial virus nucleocapsid protein (BRSV N) , bovine parainfluenza virus type 3 fusion protein, and the bovine parainfluenza virus type 3 hemagglutinin neuraminidase. 38. The homology vector of claim 30 designated 691- 096.2. 39. The homology vector of claim 30 designated 756- 11.17. 40. The homology vector of claim 30 designated 769- 73.3. 41. A vaccine which comprises an effective immunizing amount of the recombinant infectious bovine rhinotracheitis virus of claim 1 and a suitable carrier. 42. The vaccine of claim 41, wherein the recombinant infectious bovine rhinotracheitis virus is inactivated. 43. The vaccine of claim 41, wherein the recombinant infectious bovine rhinotracheitis virus is live. 44. The vaccine of claim 41, wherein the carrier is a physiologicallybalanced culture medium containing stabilizing agents. 45. The vaccine of claim 41, wherein the effective immunizing amount is from about IO 3 to about IO 8 PFU/dose. 46. The vaccine of claim 45, wherein the effective immunizing amount is from about 10 4 to about IO 7 PFU/dose. 47. The vaccine of claim 45, wherein the effective immunizing amount is from about 10 4 to about IO 6 PFU/dose. 48. A method of immunizing an animal against disease caused by infectious bovine rhinotracheitis virus which comprises administering to the animal an effective immunizing dose of the vaccine of claim 41. 49. The method of claim 48, wherein the animal is a bovine. 50. The method of claim 48, wherein the vaccine is administered by intramuscular, subcutaneous, intraperitoneal, intravenous injection, intranasally or orally. 51. A method of distinguishing an animal vaccinated with the vaccine of claim 41 from an animal infected -;ith a naturally-occurring infectious bovine rhinotracheitis virus which comprises analyzing a sample of a body fluid from the animal for the presence of IBRV gG or gE and at least one other antigen normally expressed in an animal infected by a naturally-occurring infectious bovine rhinotracheitis virus, determining whether the antigen and gG or gE are present in the body fluid, the presence of the antigen and the absence of gG or gE in the body fluid being indicative of an animal vaccinated with the vaccine and not infected with a naturally-occurring infectious bovine rhinotracheitis virus. 52. The method of claim 51, wherein the presence of the antigen and of gG or gE in the body fluid is determined by detecting in the body fluid antibodies specific for the antigen and for gG or gE. 53. A method of immunizing an animal against a human pathogen which comprises administering to the animal an effective immunizing dose of the vaccine of claim 41. 54. A method of immunizing an animal against an animal pathogen which comprises administering to the animal an effective immunizing dose of the vaccine of claim 41. 55. A method of enhancing an immune response which comprises administering to a subject an effective dose of a recombinant infectious bovine rhinotracheitis virus of claim 2 and a suitable carrier.

Inventors: COCHRAN MARK D, COCHRAN, MARK, D.
Applicants: COCHRAN MARK D, SYNTRO CORP, COCHRAN, MARK, D., SYNTRO CORPORATION
Application year: 1995
Main classification: C12N15
IPC codes: A61K39, C07K14, C12N15