Some serum protein studies in Crohn's disease and ulcerative colitis

An auto-immune origin was postulated previously for ulcerative colitis. The present results do not support this hypothesis. Crohn's disease has been compared to sarcoidosis and lymphogranuloma venereum. Crohn's disease may be a virus infection coming from the bowel content. The virus may multiply, for instance, inside the submucosal lymphocytes.