title: [Epidemiological study of a focus of Schistosoma mansoni in Bana (Niger)].
abstract: An epidemiological survey was made in 4 villages of the recently discovered Schistosoma mansoni focus of Bana (Niger). The total prevalence of intestinal schistosomiasis is 15%. The highest prevalences are noted in the age-group from 20 to 38 years old. The mean egg load is moderate: 11.3 eggs/g of stools. Several hypothesis are discussed to explain the low endemicity of this focus.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D004812:Epidemiologic Methods; D006801:Humans; D008875:Middle Aged; D009548:Niger; D010270:Parasite Egg Count; D012555:Schistosomiasis mansoni / Q000453:epidemiology* / Q000469:parasitology
vernacular_title: Etude épidémiologique du foyer à Schistosoma mansoni de Bana (Niger).