Mycobacterium bovis BCG Danish Strain 1331 isolated from a periarticular lesion in a domestic cat
2021
Manou, M. | Milgram, J. | Kelly, P. | Hoey, S. | Kenny, K. | Warde, S. | Kirby, B.
A 7‐year‐old male neutered domestic shorthair outdoor cat was referred for chronic left forelimb lameness, which had been treated with intra‐articular injections of triamcinolone acetonide. A soft tissue swelling around the elbow joint, extending from the distal humerus to the proximal ulna, was surgically explored and biopsy samples obtained. Mycobacterium bovis was cultured from samples from the soft tissue and bone. The mycobacteria from the media were killed and the DNA extracted and tested on a multiplex real‐time PCR for the absence of specific genes and the presence of mycobacterial genus markers. The PCR revealed bacillus Calmette‐Guérin Danish Strain 1331; this was also isolated from the prescapular lymph node, muscle and bone, obtained at post mortem examination. Badgers had been vaccinated with the bacillus Calmette‐Guérin vaccine SSI (Statens Serum Institute) in the area where the cat lived, in the spring and autumn of the previous year. To the authors' knowledge, this is the first report of infection with M. bovis bacillus Calmette‐Guérin Danish Strain 1331 in a domestic cat, potentially associated with annual vaccination of badgers in the proximity of the cat's home.
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