Swine tuberculosis in South Dakota.
Mycobacteria were isolated from 195 of 200 lesions in lymph nodes identified as granulomatous by meat inspectors at 4 abattoirs in South Dakota. Mycobacterium avium serotypes 1 and 2 accounted for 89% of the isolants. Mycobacteria were isolated more frequently from lesions than acid-fast bacilli were observed on microscopic examination (P less than 0.001). The frequency with which mycobacteria was isolated was similar to the occurrence of granulomatous lesions. The numbers of the various kinds of mycobacteria isolated at each of the 4 abattoirs and for the 3 meat inspection disposition classes were not significantly different.
D000003:Abattoirs; D000818:Animals; D008198:Lymph Nodes / Q000382:microbiology / Q000473:pathology; D009161:Mycobacterium / Q000302:isolation & purification; D009162:Mycobacterium avium / Q000302:isolation & purification; D013023:South Dakota; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology* / Q000382:microbiology / Q000473:pathology; D014376:Tuberculosis / Q000453:epidemiology / Q000382:microbiology / Q000662:veterinary*; D014388:Tuberculosis, Lymph Node / Q000382:microbiology / Q000473:pathology / Q000662:veterinary