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CHAGAS DISEASE IN A COMMUNITY IN SOUTHEAST BRAZIL. I. A SEROLOGIC FOLLOW-UP STUDY ON A VECTOR CONTROLLED AREA
Infecção
Epidemiologia
Controle vetorial
Transmissão da doença de Chagas
Prevalência da doença de Chagas
Chagas’ disease prevalence
Epidemiology
Vectorial control
Chagas disease transmission
Afiliación
Organización Panamericana de la Salud. Bogotá, DC, Colombia.
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, MG, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Medicina Tropical. Rio de Janeiro, RJ. Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, MG, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Medicina Tropical. Rio de Janeiro, RJ. Brasil.
Resumen en ingles
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.
Palabras clave en portugues
Trypanosoma cruziInfecção
Epidemiologia
Controle vetorial
Transmissão da doença de Chagas
Prevalência da doença de Chagas
Palabras clave en ingles
T. cruzi infectionChagas’ disease prevalence
Epidemiology
Vectorial control
Chagas disease transmission
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