Brucellosis in feral swine

Some 255 feral hogs were serologically tested for Brucella titers at a location in the lower coastal plain of South Carolina. Eighteen percent were reactors. The organism was cultured from lymph node tissues in one 3+ years old boar and identified as Brucella suis biotype 1. Prevalence of sero-positive animals increased with age. There were no important differences between sexes.