Anti-amoebic antibody levels in gastro-intestinal disorders.

Serum anti-amoebic antibody levels were studied in 91 cases having clinical presentation of bowel disorders and 31 cases of control. Anti-amoebic antibody was positive in significant dilutions in 38 cases (31.15%) in total comprising 9 cases out of 22 cases showing presence of Ent histolytica cyst in stool, 13 cases who were positive for ova, parasite and cysts other than Ent histolytica in stool and 16 cases out of 70 cases with negative stool findings. It was positive in 5 cases out of 9 diagnosed cases of amoebic liver abscess. Assessment of immunoglobulin levels in amoebic liver abscess cases revealed high levels of immunoglobulin G and immunoglobulin M.