CELEX: 32004D0666
Language: en
Date: 2004-09-29 00:00:00
Title: 2004/666/EC: Commission Decision of 29 September 2004 on introducing vaccination to supplement the measures to control infections with low pathogenic avian influenza in Italy and on specific movement control measures and repealing Decision 2002/975/EC (notified under document number C(2004) 3581)(Text with EEA relevance)

30.9.2004   
            
            
               EN
            
            
               Official Journal of the European Union
            
            
               L 303/35
            
         
      COMMISSION DECISION
   
   of 29 September 2004
   on introducing vaccination to supplement the measures to control infections with low pathogenic avian influenza in Italy and on specific movement control measures and repealing Decision 2002/975/EC
   (notified under document number C(2004) 3581)
   (Text with EEA relevance)
   (2004/666/EC)
   THE COMMISSION OF THE EUROPEAN COMMUNITIES,
   Having regard to the Treaty establishing the European Community,
   Having regard to Council Directive 89/662/EEC of 11 December 1989 concerning veterinary checks in intra-Community trade with a view to the completion of the internal market (1), and in particular, Article 9(4) thereof,
   Having regard to Council Directive 90/425/EEC of 26 June 1990 concerning veterinary and zootechnical checks applicable in intra-community trade in certain live animals and products with a view to the completion of the internal market (2), and in particular, Article 10(4) thereof,
   Having regard to Council Directive 92/40/EEC of 19 May 1992 introducing Community measures for the control of avian influenza (3), and in particular Article 16 thereof,
   Having regard to Council Directive 2002/99/EC of 16 December 2002 laying down animal health rules governing the production, processing, distribution and introduction of products of animal origin for human consumption (4), and in particular Article 13(3) thereof,
   Whereas:
   
               (1)
            
            
               In October 2002, Italy reported to the Commission that infections with low pathogenic avian influenza virus of subtype H7N3 had occurred in the regions of Veneto and Lombardia and that the disease was spreading quickly.
            
         
               (2)
            
            
               Italy took immediate action including stamping out of infected poultry flocks to control the propagation of the infection. As a supplementary measure the Italian authorities also requested approval for a vaccination programme against avian influenza for at least 18 months in order to avoid the further spread of infection.
            
         
               (3)
            
            
               The vaccination programme was approved by Commission Decision 2002/975/EC, of 12 December 2002 introducing vaccination to supplement the measures to control infections with low pathogenic avian influenza in Italy and on specific movement control measures (5), which lays down the rules concerning vaccination against avian influenza in a defined geographical area. The Decision also includes specific control measures such as movement restrictions on live poultry, hatching and table eggs for intra-Community trade.
            
         
               (4)
            
            
               The results of the vaccination programme reported at several meetings of the Standing Committee on the Food Chain and Animal Health were generally favourable concerning the control of the disease within the vaccination area. However, the infection had spread to some areas adjacent to the established vaccination area. Accordingly, Decision 2002/975/EC, as amended by Decision 2003/436/EC (6) extended the vaccination area to cover those adjacent areas.
            
         
               (5)
            
            
               Since the end of September 2003, no further circulation of the avian influenza field virus subtype H7N3 has been detected during the intense monitoring carried out in the vaccination area. Consequently Italy requested to introduce some changes to the vaccination programme and the restrictions on intra-Community trade. Accordingly, Decision 2002/975/EC, as amended by Decision 2004/159/EC approved those changes and restrictions.
            
         
               (6)
            
            
               In February 2004, a low pathogenic avian influenza virus strain of subtype H5N3 was isolated in one duck flock in the region of Lombardia within the vaccination area. Although the epidemiological investigations have not revealed any spread of the infection, the risk of introduction of avian influenza subtype H5 has been demonstrated. At present neither the poultry vaccinated against H7 subtype within the framework of the existing vaccination campaign nor the non-vaccinated poultry population is protected against disease possibly caused by avian influenza subtype H5. Therefore Italy has requested to amend the current vaccination programme in order to authorise the vaccination of poultry within the established vaccination area with a bivalent vaccine which protects against avian influenza virus infection of both H7 and H5 subtypes and to carry out this kind of vaccination until at least 31 December 2005.
            
         
               (7)
            
            
               As Decision 2002/975/EC has already been amended twice, for reasons of clarity of Community legislation, it is appropriate to repeal that Decision and replace it by this Decision.
            
         
               (8)
            
            
               The measures provided for in this Decision are in accordance with the opinion of the Standing Committee on the Food Chain and Animal Health.
            
         HAS ADOPTED THIS DECISION:
   Article 1
   1.   The amended vaccination programme against avian influenza presented by Italy to the Commission is approved and shall be carried out in the vaccination area described in Annex I.
   2.   Intensive monitoring and surveillance as set out in the vaccination programme referred to in paragraph 1 shall be carried out in the vaccination area described in Annex I and in the bordering area described in Annex II.
   Article 2
   The restrictions on movements of live poultry, hatching eggs and fresh poultry meat into, out of and within the area described in Annex I shall apply as laid down in the vaccination programme referred to in Article 1 and in the following articles.
   Article 3
   No live poultry and hatching eggs coming from and/or originating from poultry holdings from the area described in Annex I shall be dispatched from Italy.
   Article 4
   Animal health certificates accompanying consignments of live poultry and hatching eggs from Italy shall include the words: ‘The animal health conditions of this consignment are in accordance with Decision 2004/666/EC’.
   Article 5
   1.   Fresh meat of poultry shall be marked in accordance with Annex II of Council Directive 2002/99/EC and shall not be dispatched from Italy if it is derived from:
   
               (a)
            
            
               poultry vaccinated against avian influenza.
            
         
               (b)
            
            
               poultry from avian influenza sero-positive poultry flocks destined for slaughter under official control in accordance with the vaccination programme referred to in Article 1.
            
         
               (c)
            
            
               poultry originating from holdings located in a restriction zone established in accordance with the provisions laid down in the vaccination programme referred to in Article 1.
            
         2.   By way of derogation from paragraph 1(a) fresh meat derived from turkeys and chickens vaccinated against avian influenza with a heterologous vaccine of subtype (H7N1) and (H5N9) shall not be marked in accordance with Annex II of Council Directive 2002/99/EC and may be dispatched to other Member States, provided that the meat comes from turkeys and chickens which:
   
               (i)
            
            
               originate from flocks which have been regularly inspected and tested with negative results for avian influenza as laid down in the approved vaccination programme, with particular attention to be paid to the sentinel birds.For the testing of:
               
                           —
                        
                        
                           vaccinated birds, the iIFA-test shall be used,
                        
                     
                           —
                        
                        
                           sentinel birds, either the Haemagglutination-Inhibition Test (HI), the AGID-test or the ELISA-test shall be used. However, the iIFA-test shall also be used if necessary;
                        
                     
         
               (ii)
            
            
               originate from flocks which have been clinically inspected by an official veterinarian within 48 hours before loading, with particular attention to be paid to the sentinel birds;
            
         
               (iii)
            
            
               originate from flocks which have been tested serologically with negative results at the National Laboratory for avian influenza, by using the sampling and testing procedure laid down in Annex III to this Decision;
            
         
               (iv)
            
            
               shall be sent directly to a slaughterhouse designated by the competent authority and shall be slaughtered immediately after arrival. The birds shall be kept separated from other flocks not complying with the present provisions.
            
         3.   Fresh turkey and chicken meat fulfilling the requirements as set out in paragraph 2 shall be accompanied by the health certificate laid down in Annex VI to Council Directive 71/118/EEC (7), which shall include under point IV(a) of the certificate the following attestation of the official veterinarian:
   
      ‘The turkey meat/chicken meat (8) described above is in accordance with Decision 2004/666/EC.
   
   Article 6
   Italy shall ensure that in the vaccination area described in Annex I:
   
               (a)
            
            
               only disposable packaging material, or packaging material which can be effectively washed and disinfected, is used for the collection, storage and transport of table eggs;
            
         
               (b)
            
            
               all means of transport used for transporting live poultry, hatching eggs, fresh poultry meat, table eggs and poultry feedstuff are cleaned and disinfected immediately before and after each transport with disinfectants and methods of use approved by the competent authority.
            
         Article 7
   1.   Italy shall notify to the Commission and to other Member States the date of the commencement of the vaccination programme with the bivalent vaccine, at least one day in advance.
   2.   The provisions of Articles 2 to 6 shall be enforced from the date of the commencement of the vaccination.
   Article 8
   1.   Italy shall, at six-month intervals, present a report to the Commission containing information on the effectiveness of the vaccination programme referred to in Article 1.
   2.   This Decision, and in particular the period of time during which the movement restrictions provided for in Articles 2 to 6 shall continue to apply after the completion of the vaccination programme, shall be reviewed accordingly.
   Article 9
   Decision 2002/975/EC is repealed.
   Article 10
   This Decision shall apply from 1 October 2004.
   Article 11
   This Decision is addressed to the Member States.
   
      Done at Brussels, 29 September 2004.
      
         
            For the Commission
         
         David BYRNE
         
         
            Member of the Commission
         
      
   
   
      (1)  OJ L 395, 30.12.1989, p. 13. Directive as last amended by Directive 2004/41/EC of the European Parliament and of the Council (OJ L 157, 30.4.2004, p. 33).
   
      (2)  OJ L 224, 18.8.1990, p. 29. Directive as last amended by Directive 2002/33/EC of the European Parliament and of the Council (OJ L 315, 19.11.2002, p. 14).
   
      (3)  OJ L 167, 22.6.1992, p. 1. Directive as last amended by Regulation (EC) No 806/2003 (OJ L 122, 16.5.2003, p. 1).
   
      (4)  OJ L 18, 23.1.2003, p. 11.
   
      (5)  OJ L 337, 13.12.2002, p. 87. Decision as last amended by Decision 2004/159/EC (OJ L 50, 20.2.2004, p. 63).
   
      (6)  OJ L 149, 17.6.2003, p. 33.
   
      (7)  OJ L 55, 8.3.1971, p. 23. Directive as last amended by Directive 2004/41/EC.
   
      (8)  Delete as appropriate’.
   
      ANNEX I
      VACCINATION AREA
      Veneto Region
      Verona Province
      
                  ALBAREDO D'ADIGE
               
               
                   
               
            
                  ANGIARI
               
               
                   
               
            
                  ARCOLE
               
               
                   
               
            
                  BELFIORE
               
               
                   
               
            
                  BONAVIGO
               
               
                   
               
            
                  BOVOLONE
               
               
                   
               
            
                  BUTTAPIETRA
               
               
                   
               
            
                  CALDIERO
               
               
                  area to the south of the A4 motorway
               
            
                  CASALEONE
               
               
                   
               
            
                  CASTEL D'AZZANO
               
               
                   
               
            
                  CASTELNUOVO DEL GARDA
               
               
                  area to the south of the A4 motorway
               
            
                  CEREA
               
               
                   
               
            
                  COLOGNA VENETA
               
               
                   
               
            
                  COLOGNOLA AI COLLI
               
               
                  area to the south of the A4 motorway
               
            
                  CONCAMARISE
               
               
                   
               
            
                  ERBÈ
               
               
                   
               
            
                  GAZZO VERONESE
               
               
                   
               
            
                  ISOLA DELLA SCALA
               
               
                   
               
            
                  ISOLA RIZZA
               
               
                   
               
            
                  LAVAGNO
               
               
                  area to the south of the A4 motorway
               
            
                  MINERBE
               
               
                   
               
            
                  MONTEFORTE D'ALPONE
               
               
                  area to the south of the A4 motorway
               
            
                  MOZZECANE
               
               
                   
               
            
                  NOGARA
               
               
                   
               
            
                  NOGAROLE ROCCA
               
               
                   
               
            
                  OPPEANO
               
               
                   
               
            
                  PALÙ
               
               
                   
               
            
                  PESCHIERA DEL GARDA
               
               
                  area to the south of the A4 motorway
               
            
                  POVEGLIANO VERONESE
               
               
                   
               
            
                  PRESSANA
               
               
                   
               
            
                  RONCO ALL'ADIGE
               
               
                   
               
            
                  ROVERCHIARA
               
               
                   
               
            
                  ROVEREDO DI GUÀ
               
               
                   
               
            
                  SALIZZOLE
               
               
                   
               
            
                  SAN BONIFACIO
               
               
                  area to the south of the A4 motorway
               
            
                  SAN GIOVANNI LUPATOTO
               
               
                  area to the south of the A4 motorway
               
            
                  SANGUINETTO
               
               
                   
               
            
                  SAN MARTINO BUON ALBERGO
               
               
                  area to the south of the A4 motorway
               
            
                  SAN PIETRO DI MORUBIO
               
               
                   
               
            
                  SOAVE
               
               
                  area to the south of the A4 motorway
               
            
                  SOMMACAMPAGNA
               
               
                  area to the south of the A4 motorway
               
            
                  SONA
               
               
                  area to the south of the A4 motorway
               
            
                  SORGÀ
               
               
                   
               
            
                  TREVENZUOLO
               
               
                   
               
            
                  VALEGGIO SUL MINCIO
               
               
                   
               
            
                  VERONA
               
               
                  area to the south of the A4 motorway
               
            
                  VERONELLA
               
               
                   
               
            
                  VIGASIO
               
               
                   
               
            
                  VILLAFRANCA DI VERONA
               
               
                   
               
            
                  ZEVIO
               
               
                   
               
            
                  ZIMELLA
               
               
                   
               
            Lombardia Region
      Brescia Province
      
                  ACQUAFREDDA
               
               
                   
               
            
                  ALFIANELLO
               
               
                   
               
            
                  BAGNOLO MELLA
               
               
                   
               
            
                  BASSANO BRESCIANO
               
               
                   
               
            
                  BORGOSATOLLO
               
               
                   
               
            
                  BRESCIA
               
               
                  area to the south of the A4 motorway
               
            
                  CALCINATO
               
               
                  area to the south of the A4 motorway
               
            
                  CALVISANO
               
               
                   
               
            
                  CAPRIANO DEL COLLE
               
               
                   
               
            
                  CARPENEDOLO
               
               
                   
               
            
                  CASTENEDOLO
               
               
                  area to the south of the A4 motorway
               
            
                  CIGOLE
               
               
                   
               
            
                  DELLO
               
               
                   
               
            
                  DESENZANO DEL GARDA
               
               
                  area to the south of the A4 motorway
               
            
                  FIESSE
               
               
                   
               
            
                  FLERO
               
               
                   
               
            
                  GAMBARA
               
               
                   
               
            
                  GHEDI
               
               
                   
               
            
                  GOTTOLENGO
               
               
                   
               
            
                  ISORELLA
               
               
                   
               
            
                  LENO
               
               
                   
               
            
                  LONATO
               
               
                  area to the south of the A4 motorway
               
            
                  MANERBIO
               
               
                   
               
            
                  MILZANO
               
               
                   
               
            
                  MONTICHIARI
               
               
                   
               
            
                  MONTIRONE
               
               
                   
               
            
                  OFFLAGA
               
               
                   
               
            
                  PAVONE DEL MELLA
               
               
                   
               
            
                  PONCARALE
               
               
                   
               
            
                  PONTEVICO
               
               
                   
               
            
                  POZZOLENGO
               
               
                  area to the south of the A4 motorway
               
            
                  PRALBOINO
               
               
                   
               
            
                  QUINZANO D'OGLIO
               
               
                   
               
            
                  REMEDELLO
               
               
                   
               
            
                  REZZATO
               
               
                  area to the south of the A4 motorway
               
            
                  SAN GERVASIO BRESCIANO
               
               
                   
               
            
                  SAN ZENO NAVIGLIO
               
               
                   
               
            
                  SENIGA
               
               
                   
               
            
                  VEROLANUOVA
               
               
                   
               
            
                  VEROLAVECCHIA
               
               
                   
               
            
                  VISANO
               
               
                   
               
            
         
      Mantova Province
      
                  CASTIGLIONE DELLE STIVIERE
               
               
                   
               
            
                  CAVRIANA
               
               
                   
               
            
                  CERESARA
               
               
                   
               
            
                  GOITO
               
               
                   
               
            
                  GUIDIZZOLO
               
               
                   
               
            
                  MARMIROLO
               
               
                   
               
            
                  MEDOLE
               
               
                   
               
            
                  MONZAMBANO
               
               
                   
               
            
                  PONTI SUL MINCIO
               
               
                   
               
            
                  ROVERBELLA
               
               
                   
               
            
                  SOLFERINO
               
               
                   
               
            
                  VOLTA MANTOVANA
               
               
                   
               
            
   
      ANNEX II
      AREA BORDERING THE VACCINATION AREA WHERE INTENSIVE MONITORING IS CARRIED OUT
      Lombardia Region
      Bergamo province
      
                  ANTEGNATE
               
               
                   
               
            
                  BAGNATICA
               
               
                  area to the south of the A4 motorway
               
            
                  BARBATA
               
               
                   
               
            
                  BARIANO
               
               
                   
               
            
                  BOLGARE
               
               
                  area to the south of the A4 motorway
               
            
                  CALCINATE
               
               
                   
               
            
                  CALCIO
               
               
                   
               
            
                  CASTELLI CALEPIO
               
               
                  area to the south of the A4 motorway
               
            
                  CAVERNAGO
               
               
                   
               
            
                  CIVIDATE AL PIANO
               
               
                   
               
            
                  COLOGNO AL SERIO
               
               
                   
               
            
                  CORTENUOVA
               
               
                   
               
            
                  COSTA DI MEZZATE
               
               
                  area to the south of the A4 motorway
               
            
                  COVO
               
               
                   
               
            
                  FARA OLIVANA CON SOLA
               
               
                   
               
            
                  FONTANELLA
               
               
                   
               
            
                  GHISALBA
               
               
                   
               
            
                  GRUMELLO DEL MONTE
               
               
                  area to the south of the A4 motorway
               
            
                  ISSO
               
               
                   
               
            
                  MARTINENGO
               
               
                   
               
            
                  MORENGO
               
               
                   
               
            
                  MORNICO AL SERIO
               
               
                   
               
            
                  PAGAZZANO
               
               
                   
               
            
                  PALOSCO
               
               
                   
               
            
                  PUMENENGO
               
               
                   
               
            
                  ROMANO DI LOMBARDIA
               
               
                   
               
            
                  SERIATE
               
               
                  area to the south of the A4 motorway
               
            
                  TELGATE
               
               
                  area to the south of the A4 motorway
               
            
                  TORRE PALLAVICINA
               
               
                   
               
            
         
      Brescia province
      
                  AZZANO MELLA
               
               
                   
               
            
                  BARBARIGA
               
               
                   
               
            
                  BASSANO BRESCIANO
               
               
                   
               
            
                  BERLINGO
               
               
                   
               
            
                  BORGO SAN GIACOMO
               
               
                   
               
            
                  BRANDICO
               
               
                   
               
            
                  CASTEGNATO
               
               
                  area to the south of the A4 motorway
               
            
                  CASTEL MELLA
               
               
                   
               
            
                  CASTELCOVATI
               
               
                   
               
            
                  CASTREZZATO
               
               
                   
               
            
                  CAZZAGO SAN MARTINO
               
               
                  area to the south of the A4 motorway
               
            
                  CHIARI
               
               
                   
               
            
                  COCCAGLIO
               
               
                   
               
            
                  COLOGNE
               
               
                   
               
            
                  COMEZZANO-CIZZAGO
               
               
                   
               
            
                  CORZANO
               
               
                   
               
            
                  ERBUSCO
               
               
                  area to the south of the A4 motorway
               
            
                  LOGRATO
               
               
                   
               
            
                  LONGHENA
               
               
                   
               
            
                  MACLODIO
               
               
                   
               
            
                  MAIRANO
               
               
                   
               
            
                  ORZINUOVI
               
               
                   
               
            
                  ORZIVECCHI
               
               
                   
               
            
                  OSPITALETTO
               
               
                  area to the south of the A4 motorway
               
            
                  PALAZZOLO SULL'OGLIO
               
               
                  area to the south of the A4 motorway
               
            
                  POMPIANO
               
               
                   
               
            
                  PONTOGLIO
               
               
                   
               
            
                  ROCCAFRANCA
               
               
                   
               
            
                  RONCADELLE
               
               
                  area to the south of the A4 motorway
               
            
                  ROVATO
               
               
                  area to the south of the A4 motorway
               
            
                  RUDIANO
               
               
                   
               
            
                  SAN PAOLO
               
               
                   
               
            
                  TORBOLE CASAGLIA
               
               
                   
               
            
                  TRAVAGLIATO
               
               
                   
               
            
                  TRENZANO
               
               
                   
               
            
                  URAGO D'OGLIO
               
               
                   
               
            
                  VILLACHIARA
               
               
                   
               
            
         
      Cremona province
      
                  CAMISANO
               
               
                   
               
            
                  CASALE CREMASCO-VIDOLASCO
               
               
                   
               
            
                  CASALETTO DI SOPRA
               
               
                   
               
            
                  CASTEL GABBIANO
               
               
                   
               
            
                  SONCINO
               
               
                   
               
            
         
      Mantova province
      
                  ACQUANEGRA SUL CHIESE
               
               
                   
               
            
                  ASOLA
               
               
                   
               
            
                  BIGARELLO
               
               
                   
               
            
                  CANNETO SULL'OGLIO
               
               
                   
               
            
                  CASALMORO
               
               
                   
               
            
                  CASALOLDO
               
               
                   
               
            
                  CASALROMANO
               
               
                   
               
            
                  CASTEL D'ARIO
               
               
                   
               
            
                  CASTEL GOFFREDO
               
               
                   
               
            
                  CASTELBELFORTE
               
               
                   
               
            
                  GAZOLDO DEGLI IPPOLITI
               
               
                   
               
            
                  MARIANA MANTOVANA
               
               
                   
               
            
                  PIUBEGA
               
               
                   
               
            
                  PORTO MANTOVANO
               
               
                   
               
            
                  REDONDESCO
               
               
                   
               
            
                  RODIGO
               
               
                   
               
            
                  RONCOFERRARO
               
               
                   
               
            
                  SAN GIORGIO DI MANTOVA
               
               
                   
               
            
                  VILLIMPENTA
               
               
                   
               
            Veneto Region
      Padua province
      
                  CARCERI
               
               
                   
               
            
                  CASALE DI SCODOSIA
               
               
                   
               
            
                  ESTE
               
               
                   
               
            
                  LOZZO ATESTINO
               
               
                   
               
            
                  MEGLIADINO SAN FIDENZIO
               
               
                   
               
            
                  MEGLIADINO SAN VITALE
               
               
                   
               
            
                  MONTAGNANA
               
               
                   
               
            
                  OSPEDALETTO EUGANEO
               
               
                   
               
            
                  PONSO
               
               
                   
               
            
                  SALETTO
               
               
                   
               
            
                  SANTA MARGHERITA D’ADIGE
               
               
                   
               
            
                  URBANA
               
               
                   
               
            
         
      Verona province
      
                  BEVILACQUA
               
               
                   
               
            
                  BOSCHI SANT'ANNA
               
               
                   
               
            
                  BUSSOLENGO
               
               
                   
               
            
                  PESCANTINA
               
               
                   
               
            
                  SOMMACAMPAGNA
               
               
                  area to the north of the A4 motorway
               
            
                  SONA
               
               
                  area to the north of the A4 motorway
               
            
         
      Vicenza province
      
                  AGUGLIARO
               
               
                   
               
            
                  ALBETTONE
               
               
                   
               
            
                  ALONTE
               
               
                   
               
            
                  ASIGLIANO VENETO
               
               
                   
               
            
                  BARBARANO VICENTINO
               
               
                   
               
            
                  CAMPIGLIA DEI BERICI
               
               
                   
               
            
                  CASTEGNERO
               
               
                   
               
            
                  LONIGO
               
               
                   
               
            
                  MONTEGALDA
               
               
                   
               
            
                  MONTEGALDELLA
               
               
                   
               
            
                  MOSSANO
               
               
                   
               
            
                  NANTO
               
               
                   
               
            
                  NOVENTA VICENTINA
               
               
                   
               
            
                  ORGIANO
               
               
                   
               
            
                  POIANA MAGGIORE
               
               
                   
               
            
                  SAN GERMANO DEI BERICI
               
               
                   
               
            
                  SOSSANO
               
               
                   
               
            
                  VILLAGA
               
               
                   
               
            
   
      ANNEX III
      SAMPLING AND TESTING PROCEDURE
      1.   Introduction and general use
      The developed indirect Immunofluorescence Assay (iIFA-test) is aimed at the differentiation between vaccinated/field exposed and vaccinated/non field exposed turkeys and chickens in the framework of a ‘DIVA’ (Differentiating Infected from Vaccinated Animals) vaccination strategy using a heterologous subtype vaccine from the field virus subtype.
      2.   Use of the test for the purpose of dispatching fresh turkey and chicken meat from the vaccination area in Italy to other Member States
      Meat originating from turkey and chicken flocks vaccinated against avian influenza may be dispatched to other Member States provided that, where all the birds are kept in one building, blood samples have been taken by the official veterinarian within seven days prior to slaughter from at least 10 vaccinated turkeys or chickens destined for slaughter. However, where the poultry are kept in more than one group or shed, at least 20 vaccinated birds selected randomly from all the groups or sheds on the farm shall be sampled.