WGFD - Brucellosis Interactive Map

The Wyoming Game and Fish Department's Brucellosis Interactive Map displays information pertaining to Brucellosis in Wyoming - 2019 Elk Hunt Areas, 2019 Hunter Harvested Brucellosis Surveillance, Brucellosis Endemic Elk Hunt Areas, and these data from previous years. Brucellosis is a bacterial disease primarily of Rocky Mountain elk and bison. The disease is limited to northwestern Wyoming and adjoining portions of Montana and Idaho. Cows often abort their first fetus after becoming infected. Abortions may occur in subsequent pregnancies but diminish over time. The disease does not affect bull reproduction; however infection may result in inflammation of the testes (orchitis). Brucellosis also infects domestic cattle. A state/federal eradication program has almost eliminated the disease in cattle, but infected elk and bison pose a continuing threat. The prevalance of brucellosis can be quite high (up to 75% in bison), yet there is no evidence that brucellosis has noticeable impacts on populations. The primary management concern is the possible transmission of brucellosis from elk or bison to domestic cattle. States having infected cattle herds suffer economic hardships. The threat to cattle results in ongoing friction among wildlife management agencies, ranchers, and federal agencies.