title: A survey of the prevalence of schistosomiasis in school children in the Bo and Tongo Field areas of Sierra Leone.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D012553:Schistosomiasis haematobia / Q000453:epidemiology*; D012555:Schistosomiasis mansoni / Q000453:epidemiology*; D012737:Sex Factors; D012807:Sierra Leone