Anthrax has been confirmed in multiple beef herds located in Carbon County, Wyoming. This is the first
confirmed anthrax in Wyoming cattle since the 1970s. Wyoming State Veterinary Laboratory confirmed
the diagnosis late Saturday afternoon, August 31. Both WSVL and private veterinarians were essential in
the diagnosis of anthrax impacting several herds in the region.
Anthrax is a bacterial disease caused by Bacillus anthracis, a naturally occurring organism with
worldwide distribution. The spore-forming bacteria may survive in the soil for years to decades, resulting
in sporadic outbreaks which usually occur after periods of drought followed by heavy rain. Domestic and
wild animals may become infected when they breathe or ingest spores in contaminated soil, plants, or
water. Clinical signs of anthrax in livestock include sudden death, weakness, staggering, difficulty
breathing, fever, and bloody diarrhea.
“Multiple stage agencies and private veterinarians responded quickly following the anthrax diagnosis by
the Wyoming State Veterinary Laboratory. Protecting animal and human health is critical upon diagnosis
of a zoonotic disease,” said Dr. Hallie Hasel, Wyoming State Veterinarian. “The Wyoming Livestock
Board will continue working with producers and private veterinarians to reduce further spread and limit
human exposure through recommendations for carcass disposal and vaccination. Anthrax vaccine is
approved for multiple livestock species and highly effective.”
A public meeting will be held at the Elk Mountain Fire Hall, Wednesday, 9/4, 7:00 pm, with
participation from multiple agencies.
Owners of livestock experiencing clinical signs consistent with anthrax or sudden death should contact
their private veterinary practitioner or the Wyoming Livestock Board, 307.777.7515
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WLB – 2024
