Abstract
The purpose of this study was to examine the prevalence and distribution of grossly visible lesions of tuberculosis in a herd of 344 North American elk (Cervus elaphus) depopulated during a three-month period in 1991. Abattoir inspection detected mycobacterial lesions in 134 (39.8%) of the 337 animals received for slaughter. The prevalence of lesions increased with the age of the animals. Lesions were predominantly suppurative rather than caseous, and mineralization was less evident than in tuberculous lesions in cattle. Lesions occurred predominantly in lymph nodes, and lungs were the only organs in which mycobacterial lesions were found. The distribution of lesions suggested that aerosol transmission was the most significant means of spread of the disease within the herd. Giant liver flukes (Fascioloides magna) were observed in approximately 80% of the adult elk.
Full text
PDF




Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Clifton-Hadley R. S., Wilesmith J. W. Tuberculosis in deer: a review. Vet Rec. 1991 Jul 6;129(1):5–12. doi: 10.1136/vr.129.1.5. [DOI] [PubMed] [Google Scholar]
- Fanning A., Edwards S. Mycobacterium bovis infection in human beings in contact with elk (Cervus elaphus) in Alberta, Canada. Lancet. 1991 Nov 16;338(8777):1253–1255. doi: 10.1016/0140-6736(91)92113-g. [DOI] [PubMed] [Google Scholar]
- Francis J. Route of infection in tuberculosis. Aust Vet J. 1972 Oct;48(10):578–578. doi: 10.1111/j.1751-0813.1972.tb08027.x. [DOI] [PubMed] [Google Scholar]
- Lepper A. W., Pearson C. W. The route of infection in tuberculosis of beef cattle. Aust Vet J. 1973 May;49(5):266–267. doi: 10.1111/j.1751-0813.1973.tb05226.x. [DOI] [PubMed] [Google Scholar]
- McIlroy S. G., Neill S. D., McCracken R. M. Pulmonary lesions and Mycobacterium bovis excretion from the respiratory tract of tuberculin reacting cattle. Vet Rec. 1986 Jun 28;118(26):718–721. doi: 10.1136/vr.118.26.718. [DOI] [PubMed] [Google Scholar]
- Rhyan J. C., Saari D. A., Williams E. S., Miller M. W., Davis A. J., Wilson A. J. Gross and microscopic lesions of naturally occurring tuberculosis in a captive herd of wapiti (Cervus elaphus nelsoni) in Colorado. J Vet Diagn Invest. 1992 Oct;4(4):428–433. doi: 10.1177/104063879200400411. [DOI] [PubMed] [Google Scholar]
- Tessaro S. V., Forbes L. B., Turcotte C. A survey of brucellosis and tuberculosis in bison in and around Wood Buffalo National Park, Canada. Can Vet J. 1990 Mar;31(3):174–180. [PMC free article] [PubMed] [Google Scholar]
- Tessaro S. V. The existing and potential importance of brucellosis and tuberculosis in canadian wildlife: a review. Can Vet J. 1986 Mar;27(3):119–124. [PMC free article] [PubMed] [Google Scholar]
- Thoen C. O., Quinn W. J., Miller L. D., Stackhouse L. L., Newcomb B. F., Ferrell J. M. Mycobacterium bovis infection in North American elk (Cervus elaphus). J Vet Diagn Invest. 1992 Oct;4(4):423–427. doi: 10.1177/104063879200400410. [DOI] [PubMed] [Google Scholar]