Jc. Rhyan et al., ABORTION CAUSED BY BRUCELLA-ABORTUS BIOVAR-1 IN A FREE-RANGING BISON (BISON-BISON) FROM YELLOWSTONE-NATIONAL-PARK, Journal of wildlife diseases, 30(3), 1994, pp. 445-446
A near-term aborted bison (Bison bison) fetus was collected near Old F
aithful geyser in Yellowstone National Park, Wyoming (USA). On necrops
y, the fetus liver had a small capsular tear, and there was a small qu
antity of blood in the peritoneal cavity. Microscopic lesions included
mild, purulent bronchopneumonia and mild, multifocal, interstitial pn
eumonia. Brucella abortus biovar 1 was isolated from fetal abomasal co
ntents, lung, and heart blood.