title: Studies on schistosomiasis in Taiz Province, Yemen Arab Republic.
abstract: Infection with both urinary and intestinal schistosomiasis is prevalent with patchy distribution in Taiz Province, southwest Yemen Arab Republic. Schistosoma haematobium with a prevalence as high as 90% was found in the western, southern, and northern parts of the province. Among school children the overall prevalence was 37%. Infection rates did not differ significantly among various age and sex groups. Three species of Bulinus--B. beccarii, B. truncatus, and B. wrighti--have been found in the province, B. beccarii having the widest distribution and highest density. S. mansoni was found in most parts of the province. A 100% prevalence was found in some schools. The overall prevalence was 64% among school children and 68% among inhabitants of villages surveyed. Highest prevalence was found in the age group 10-20 years. Hepatosplenomegaly was prevalent among children in highly endemic areas. Biomphalaria pfeifferi, the intermediate host of S. mansoni, was found in most valleys.
mesh_terms: D000293:Adolescent; D000328:Adult; D000818:Animals; D001700:Biomphalaria / Q000469:parasitology / Q000502:physiology; D002033:Bulinus / Q000469:parasitology / Q000502:physiology; D002648:Child; D002675:Child, Preschool; D004463:Ecology; D005260:Female; D006801:Humans; D007223:Infant; D007411:Intestinal Diseases, Parasitic / Q000453:epidemiology*; D008297:Male; D012548:Schistosoma haematobium; D012550:Schistosoma mansoni; D012552:Schistosomiasis / Q000453:epidemiology*; D014552:Urinary Tract Infections / Q000453:epidemiology*; D015006:Yemen