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Published on: June 30, 2019
An outbreak of tuberculosis by Mycobacterium bovis in coatis (Nasua nasua)
Patricia Sayuri Murakami1, Fernanda Monego, John L Ho
1Department of Veterinary Medicine, Federal University of Parana, Rua dos Funcionarios 1540, Curitiba, Parana, 80035, Brazil.
Abstract:
Mycobacterium tuberculosis complex, which includes Mycobacterium bovis, infrequently causes severe or lethal disease in captive wildlife populations. A dead coati from a wildlife triage center showing pulmonary lesions compatible with tuberculosis had raised suspicion of a potential disease caused by mycobacteria species and was further investigated. Four native coatis (Nasua nasua) with suspected mycobacterial infection were sedated, and bronchoalveolar lavages and tuberculin skin tests (TSTs) were performed. All animals tested positive upon TST. Mycobacterial culturing, Ziehl-Neelsen staining, and genetic testing were performed on postmortem samples and the etiologic agent was identified as M. bovis. Molecular genetic identification using a polymerase chain reaction panel was crucial to achieving a definitive diagnosis.
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