| abortion caused by brucella abortus biovar 1 in a free-ranging bison (bison bison) from yellowstone national park. | a near-term aborted bison (bison bison) fetus was collected near old faithful geyser in yellowstone national park, wyoming (usa). on necropsy, the fetus liver had a small capsular tear, and there was a small quantity of blood in the peritoneal cavity. microscopic lesions included mild, purulent bronchopneumonia and mild, multifocal, interstitial pneumonia. brucella abortus biovar 1 was isolated from fetal abomasal contents, lung, and heart blood. | 1994 | 7933293 |
| brucellosis in elk of eastern idaho. | brucellosis occurs in free-ranging elk (cervus elaphus) and bison (bison bison) in the greater yellowstone area, which includes portions of idaho, wyoming, and montana. brucella abortus was first detected in elk in idaho in 1998, and from 1998 to 2002, serologic surveillance of hunter-killed elk was conducted in northeastern and southeastern idaho. prevalence of antibodies in these elk varied annually, but averaged between 2% and 3%. elk were also trapped in northeastern idaho from 1998-2002 and ... | 2006 | 16870849 |
| status of brucellosis in free-ranging elk and bison in wyoming. | brucella abortus is the causative agent of brucellosis, a disease enzootic in populations of free-ranging elk (cervus elaphus) and bison (bison bison) in the greater yellowstone ecosystem, usa. we define the distribution of the disease in elk throughout wyoming, usa, using three epidemiologic/geographic classifications based on winter-foraging opportunity. antibody prevalence for >3,300 yearling and adult, female elk, sampled from supplemental feedgrounds in western wyoming, usa, since 1985, was ... | 2010 | 20688637 |
| vaccination strategies for managing brucellosis in yellowstone bison. | concerns over migratory bison (bison bison) at yellowstone national park transmitting brucellosis (brucella abortus) to cattle herds on adjacent lands led to proposals for bison vaccination. we developed an individual-based model to evaluate how brucellosis infection might respond under alternate vaccination strategies, including: (1) vaccination of female calves and yearlings captured at the park boundary when bison move outside the primary conservation area; (2) combining boundary vaccination ... | 2010 | 20362620 |
| brucellosis in captive rocky mountain bighorn sheep (ovis canadensis) caused by brucella abortus biovar 4. | nine (four female, five male) captive adult rocky mountain bighorn sheep (ovis canadensis) contracted brucellosis caused by brucella abortus biovar 4 as a result of natural exposure to an aborted elk (cervus elaphus) fetus. clinical signs of infection were orchitis and epididymitis in males and lymphadenitis and placentitis with abortion in females. gross pathologic findings included enlargement of the testes or epididymides, or both, and yellow caseous abscesses and pyogranulomas of the same. b ... | 2004 | 15362833 |
| brucellosis in free-ranging bison (bison bison) from teton county, wyoming. | brucellosis was studied opportunistically in bison (bison bison) in the free-ranging jackson herd of approximately 120 in teton county, wyoming (usa) in march 1989. recent abortion was diagnosed in a 2-yr-old cow and brucella abortus biovar 1 was isolated from vaginal discharge, uterine contents, uterus, and supramammary lymph nodes. endometritis was characterized by lymphoplasmacytic infiltrates in the lamina propria and neutrophils in uterine glands and within necrotic debris and exudate in th ... | 1993 | 8445770 |
| brucellosis in free-ranging bison (bison bison) in yellowstone, grand teton, and wood buffalo national parks: a review. | | 1995 | 8592398 |