Endemicity studies on bilharziasis in the vicinity of Basra. 1. Human epidemiology. 2. Snail investigations. 3. Environmental factors.
D000818:Animals; D006372:Helix, Snails; D006801:Humans; D012106:Research; D012552:Schistosomiasis / Q000453:epidemiology*; D012908:Snails / Q000469:parasitology*
SCHISTOSOMIASIS/epidemiology; SNAILS/parasitology