- Schistosomiasis is rare in Israel but very common in Africa. The recent Ethiopian immigration has brought us cases of parasitic diseases unfamiliar to Israeli physicians. 3 cases with uncommon manifestations of colonic schistosomiasis are described. The first had bloody diarrhea for 4 years. The second had co-infection with Salmonella D. The third was diagnosed as having schistosomal colitis on routine sigmoidoscopy, which was performed following diagnosis of rectal carcinoma in her brother.