Tuberculous-like lymphadenitis of slaughtered pigs from Brasília

Abstract

The macroscopic inspection of the cervical lymph nodes of 1,090 slaughtered pigs from Brasília showed tuberculous-like lesions in 53 (4.8%) animals. The bacteriological examination permitted the isolation of bacterial cultures from only 16 (30.2%) of this lesions. There were identified one strain of Micobacterium tubercoulosis, 3 M. intracellulare, serotype Dent, 4 M. terrae, one M. abscessus, one M. scrofulaceum, 5 Corynebacterium equi, and one of each C. pyogenes, Streptococcus pyogenes and Staphylococcus aureus. Twice two cultures were associated. The possible cause of the reduced number of isolations of atypical mycobacteria from the tuberculous-like lesions of the pigs of the Brasilia region are discussed.