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Avian Pathol ; 45(1): 126-31, 2016.
Article in English | MEDLINE | ID: mdl-26743683

ABSTRACT

A 3-year-old male black swan (Cygnus atratus), belonging to a private collection, died suddenly and was subjected to post mortem examination. At necropsy, caseous exudate was observed in the lungs and air sacs; granulomatous lesions characterized by epithelioid macrophages and abundant mycobacteria were observed microscopically. Avian tuberculosis associated with Mycobacterium bovis was confirmed by bacteriologic isolation, biochemical tests and molecular methods. The organism was identified as spoligotype SB0140, which is frequently found in cattle and people in North America. In this case, interspecies transmission could have been the source of infection because the swan cohabited with cattle.


Subject(s)
Anseriformes/microbiology , Mycobacterium bovis/isolation & purification , Respiratory Tract Infections/veterinary , Tuberculosis/veterinary , Animals , Fatal Outcome , Lung/microbiology , Lung/pathology , Male , Mexico , Mycobacterium bovis/genetics , Respiratory Tract Infections/diagnosis , Respiratory Tract Infections/microbiology , Tuberculosis/diagnosis , Tuberculosis/microbiology
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