Yellowstone Park bison herd a highly contagious zoonosis caused by ingestion of unpasteurized milk or undercooked meat from infected animals, or close contact with their secretions. Brucellosis occurs naturally in the Yellowstone Bison Herd and the normal winter migrations of bison outside the park have raised concerns that Brucellosis infected Bison may infect cattle. The United States government has programs to eradicate brucellosis in domestic livestock. Since 1934, an estimated $3.5 billion in federal, state, and private funds has been spent on brucellosis eradication in domestic livestock. Over the years, the National Park Service and states bordering the park have implemented various plans to
Swine brucellosis there is currently no approved vaccine for swine brucellosis. In the United States, "B. suis" was the first biological agent weaponized in 1952, and was field-tested with "B. suis"-filled bombs called M33 cluster bombs. It is, however, considered to be one of the agents of lesser threat because many infections are asymptomatic and the mortality is low, but it is used more as an incapacitating agent. Swine brucellosis Swine brucellosis is a zoonosis affecting pigs, caused by the bacterium "Brucella suis". The disease typically causes chronic inflammatory lesions in the reproductive organs of susceptible animals or orchitis, and may even