Enzootic Mycobacterium avium infection in captive Parma wallabies (Macropus parma) with unusual spinal cord manifestations.

Pathological, microbiological and clinical findings in Parma wallabies (Macropus parma) with an enzootic infection caused by Mycobacterium avium are described. Disorders of locomotion resulted from granulomatous myelitis, meningitis and radiculitis in the lumbosacral spinal cord. Lesions found in a number of internal organs suggested protracted systemic infection due to an alimentary or airborne infection with Mycobacterium avium. This organism was isolated and identified by methods that included microbiological examinations, based on microscopy, culture, in-vitro tests, animal inoculation, polymerase chain reaction and cycle sequencing.