[Chronic diarrhea caused by Campylobacter jejuni in a patient with AIDS]

We report a case of C. jejuni chronic diarrhea in a homosexual man with AIDS. The antibiotic susceptibility of the bacteria was about normal for the species. Investigating specific immunity, we observed the presence of anti-C. jejuni IgG and the absence of anti-C. jejuni IgA. These findings concord with the hypothesis that specific IgA are necessary for C. jejuni clearance from the digestive tract.