Bovine Brucellosis in Cervids

Bovine Brucellosis in Cervids

Brucellosis is a contagious disease of livestock and wildlife that has significant consequences for animal and public health and international trade. Bacteria of the genus Brucella cause the disease. Brucellosis occurs primarily in cattle, bison, and swine, although cervids, goats, sheep, and horses are also susceptible. In cattle and bison, the specific disease organism of concern is Brucella abortus (B. abortus).


Proposed National Cervid Brucellosis Herd Accreditation Program

USDA has cooperated with the livestock industry and State animal health authorities since 1934 to eliminate bovine brucellosis in the U.S. The national surveillance strategies implemented since then have proven successful in eradicating bovine brucellosis from the domestic cattle, bison in the U.S. with the exception of the Greater Yellowstone Area where brucellosis continues to be found in cattle and bison herds.   However, continued surveillance is needed to detect any possible reservoir, resurgence, or reintroduction of the disease and to prove to our trading partners that the U.S. is free of the disease in domestic livestock populations.


Captive/farmed cervids have not been a part of the national bovine brucellosis surveillance efforts which are primarily predicated on national bovine slaughter surveillance activities.  An equivalent slaughter surveillance venue does not currently exist for captive/farmed cervids.    In the absence of specific Federal regulations for a captive/farmed cervid brucellosis program, many states have state regulations which include testing requirements for imported cervids and a cervid herd brucellosis accreditation program administered under state authority.  A national cervid brucellosis herd accreditation program is part of the pending proposed comprehensive bovine Brucellosis/TB rule.  This proposed rule also includes language that would establish new Federal regulations towards affirming a State’s brucellosis disease free status for its captive/farmed cervid population.


The APHIS VS Brucellosis In Cervidae Uniform Methods and Rules (September 30, 2003) has served as a guidance document for many State-based cervid brucellosis accreditation programs until the new bovine Brucellosis/TB rule is implemented.

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