Chagas disease in a community in Southeast Brazil: I. A serlogic follow-up study on a vectorcontrolled area

Revista do Instituto de Medicina Tropical de São Paulo

Roberto Montoya²  João Carlos Pinto Dias¹  José Rodrigues Coura¹ 

[1] ,Organización Panamericana de la SaludBogotá DC ,Colombia

关键词: T. cruzi infection;    Chagas' disease prevalence;    Epidemiology;    Vectorial control;    Chagas disease transmission;   

DOI  :  10.1590/S0036-46652003000500006

来源: SciELO

【 摘 要 】

The prevalence of Trypanosoma cruzi infection was evaluated in Berilo, Minas Gerais (MG), Brazil, from January to July 1997. A serological survey using the indirect immunofluorescence test (IFT) in dried blood collected on filter-paper was performed in a sample of 2,261 individuals. The overall prevalence rate of T. cruzi infection was 18%, and reached 50% in individuals older than 30 years from rural areas. The percentage of seropositivity was 0.17% among individuals younger than 10 years old, suggesting that vectorial transmission is controlled in the area. A decrease in prevalence rates among people born after 1960 and 1970 was observed and this appears to be correlated with the beginning of control programs. A reduction in T. cruzi infection rates was observed when comparing our results with the rates estimated in a serologic study carried out in Berilo in 1983(11).

【 授权许可】

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