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Mem. Inst. Oswaldo Cruz ; 98(6): 853-859, Sept. 2003. tab, graf
Artículo en Inglés | LILACS, SES-SP | ID: lil-348359

RESUMEN

A field survey on schistosomiais was carried out in 1998, in the municipality of Pedro de Toledo, a low endemic area in the state of Sä¯áPaulo, Brazil. According to the parasitologic Kato-Katz method, the prevalence rate was 1.6 percent, with an infection intensity of 40.9 eggs per gram of stool. By the immunofluorescence test (IFT) for detection of IgG and IgM antibodies in the serum, IgG-IFT and IgM-IFT, respectively, prevalence indices of 33.2 percent and 33.5 percent were observed. To assess the impact of the schistosomiasis control program in the area, parasitologic and serologic data obtained in 1998, analyzed according to the age, sex, and residence zone, were compared to previous data obtained in a epidemiologic study carried out in 1980, when prevalence indices were of 22.8 percent and 55.5 percent, respectively by Kato-Katz and IgG-IFT. A significant fall of the prevalence was observed, indicating that the control measures were effective. Nonetheless, residual transmission was observed, demonstrating the need for a joint effort to include new approaches for better understanding the real situation and improving the control of the disease in low endemic areas


Asunto(s)
Preescolar , Niño , Schistosoma mansoni , Esquistosomiasis mansoni , Anticuerpos Antihelmínticos , Recuento de Huevos de Parásitos , Esquistosomiasis mansoni , Brasil , Estudios Seroepidemiológicos , Prevalencia , Estudios de Seguimiento , Técnica del Anticuerpo Fluorescente , Estudio de Evaluación , Heces
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