CD79A and Diarrhea: On comparison of antibody response in HIV seropositive patients with and without diarrhoea, the number of IgG, IgM and IgA seropositive patients with history of diarrhoea was not significantly different from that of patients without history of diarrhoea in both HIV seropositive Cryptosporidium positive and HIV seropositive Cryptosporidium negative groups.