Florida Administrative Code › 5 - DEPARTMENT OF AGRICULTURE AND CONSUMER SERVICES › 5C - Division of Animal Industry › Chapter 5C-6 - BRUCELLOSIS › Section 5C-6.0021 - Whole Herd Vaccination Plan

Current through Reg. 50, No. 138; July 16, 2024
(1) The
				approval of each herd selected for whole herd vaccination will be jointly given
				by the chief state and federal animal health officials. The vaccinating and
				testing of the herds selected shall be the responsibility of state or federal
				regulatory veterinarians.
(2)
				Procedures in selected herds.
(a) Infected
				herds.
1. In infected herds, the individual
				herd plan will include the use of whole herd vaccination in addition to other
				recognized procedures for elimination of the disease. All test eligible animals
				must have an official brucellosis test and all reactors must be removed for
				immediate slaughter. Negative female animals must be vaccinated with a reduced
				dose of vaccine within 10 days of the test. All eligible calves shall also be
				vaccinated and identified.
2.
				Overage vaccinates shall be identified by an official numbered metal eartag in
				the right ear and, in the left ear, may be further identified by a large
				numbered unique tag correlated on test records with the official eartag. A
				permanent legible individual animal registration or individual animal
				registration brand may be used in lieu of the official numbered metal eartag.
				Additionally, each animal shall be identified at the time of vaccination with
				an open-ended "V" hot-iron brand at least two inches in height and two inches
				in width on the right jaw, or by an official AV (adult vaccination) tattoo in
				the right ear preceded by the quarter of the year and followed by the last
				digit of the year in which the vaccination was done, or both.
3. The herd must be maintained in quarantine,
				and a first retest is recommended at two months or as early as possible
				following vaccination to facilitate elimination of field strain infection.
				Complete herd testing shall be resumed not more than six months following the
				initial whole herd vaccination, and shall be conducted at such intervals as are
				established by the designated epidemiologist. Reactor animals must be removed
				for slaughter following each herd test.
4. Brucellosis infected adult vaccinated beef
				herds shall be released from quarantine on two negative tests, the first not
				less than 30 days following removal of all reactors and the second not less
				than 180 days following removal of the last reactor, as is currently provided
				in subsection 5C-6.0019(3),
				F.A.C., for release of quarantine in infected nonvaccinated herds. Such herds
				shall be considered negative if all animals in the herd show titers of less
				than +1 at 1:40 on the CF test or less than +25 on the rivanol test. An
				additional herd test is required not less than six months after release of a
				vaccinated herd from quarantine. A post-sale retest on animals moving from
				previously quarantined "AV" herds before the six-months retest shall be
				conducted between 120 and 180 days. However, animals may be tested as early as
				45 days after movement if, at the time of test, at least six months have
				expired since the quarantine release of the herd of origin.
5. In all herd tests, a presumptive test
				shall be performed on each test-eligible animal. The card, and CF and/or
				rivanol tests shall be performed on all presumptive test positive animals.
				Animals positive to any of these tests, that are not identifiable as official
				vaccinates, shall be classified as reactors.
6. Official vaccinates positive on the
				standard card test or having a titer between +2 at 1:10 to +4 at 1:20 on the CF
				test in herds eligible for release from quarantine shall be classified as
				suspects and be quarantined individually (not the whole herd) until they are
				card negative and less than +2 at 1:10 on the CF test.
7. Dairy Herds. All of the foregoing
				procedures in Rule 5C-6.0021, F.A.C., shall apply
				to "AV" dairy herds. In addition, dairy herds shall either be negative to the
				last milk ring test or all individual lactating "AV" dairy animals shall have
				less than a 1:16 titer by the milk ring test on individual samples of all
				quarters prior to release from quarantine. Any "AV" dairy herd released from
				quarantine which continues to be suspicious on milk ring test surveillance
				shall be evaluated by the designated epidemiologist and monitored with further
				testing as necessary to ensure that there is no evidence of field strain
				brucella infection in the herd.