Pure water and infections in Africa.
D000349:Africa; D002648:Child; D004405:Dysentery, Bacillary / Q000209:etiology*; D006801:Humans; D012423:Rural Health; D012480:Salmonella Infections / Q000209:etiology*; D012552:Schistosomiasis / Q000209:etiology*; D014504:Urban Health; D014876:Water Pollution; D014881:Water Supply