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Schistosomiasis mansoni in three localities of western lowland of the state of Maranhäo before and after mass treatments
Mem. Inst. Oswaldo Cruz ; 87(4): 555-8, out.-dez. 1992. tab, mapas
Artigo em Inglês | LILACS | ID: lil-116370
RESUMO
A cross-sectional study for schistosomiasis was carried out in the localities of Aliança, Alegre and Coroatá (districts of Cururupu, Säo Bento and Säo Joäo Batista, respectively) in the lowland of the state of Maranhäo, after respectively 13, 11 and 4 mass treatments with oxamniquine in the period of ten years (1977-1987). The study included clinical and quantitative fecal examination, skin test for Shistosoma mansoni infection, evaluation of man-water contact of the total population (829 persons) in the three localities and other epidemiological investigations such as infection rate and dynamics of the snail population. After 13 mass treatments in Aliança, the prevalence of S. mansoni infection was reduced from 57.9% to 7.4%. In Coroatá with 11 mass treatments the prevalence fell from 69.2% to 12.8% and in Alegre, with only 4 mass treatments there was pratically no reduction in prevalence 22.9% to 21%. After mass treatments the type II hepatointestinal clinical form was 10.8% in Aliança, 17.9% in Alegre and 18% in Coroatá. The hepatosplenic (type III) form was not seen in Aliança and Coroatá but unexplanably it was 7.6% in Alegre. There was no correlation between the egg load elimination and the clinical forms
Assuntos
Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Esquistossomose mansoni Tipo de estudo: Estudo observacional / Fatores de risco País/Região como assunto: América do Sul / Brasil Idioma: Inglês Revista: Mem. Inst. Oswaldo Cruz Assunto da revista: Medicina Tropical / Parasitologia Ano de publicação: 1992 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Esquistossomose mansoni Tipo de estudo: Estudo observacional / Fatores de risco País/Região como assunto: América do Sul / Brasil Idioma: Inglês Revista: Mem. Inst. Oswaldo Cruz Assunto da revista: Medicina Tropical / Parasitologia Ano de publicação: 1992 Tipo de documento: Artigo