Tuberculosis-like lesions in the submaxillary lymph nodes of pigs in Queensland

Abstract

Sixty-five diseased submaxillary lymph nodes of pigs were studied macroscopically, bacteriologically, histologically and by animal inoculation. Corynebacterium equi was recovered from 36 of 38 nodes with tuberculosis-like lesions. It was the sole organism in 14 of these nodes and is regarded as being responsible for the pseudo-tuberculosis lesions. No evidence was found that any of the miscellaneous other bacteria frequently associated with C. equi, or any migrating parasitic larvae, were responsible.