title: Infra-specific variations of Schistosoma haematobium.
mesh_terms: D000818:Animals; D004463:Ecology; D004534:Egypt; D005869:Ghana; D007492:Iran; D008270:Madagascar; D009549:Nigeria; D012547:Schistosoma; D012548:Schistosoma haematobium; D012908:Snails; D013045:Species Specificity; D013636:Tanzania