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Em 1999, realizamos a avaliação do impacto das medidas de controle vetorial sobre a transmissão da doença de Chagas nas áreas endêmicas Mambaí e Bruritinópolis (GO). Após o recenseamento populacional foram realizados os inquéritos entomológico das unidades domiciliares e sorológico da população. As amostras de sangue foram coletadas por punção digital, em papel de filtro. O teste sorológico utilizado inicialmente para detectar anticorpos contra Trypanosoma cruzi foi a reação de imunofluorescência indireta (IFI) quantitativa com ponto de corte a diluição 1/20 e, os reagentes realizaram a reação de hemaglutinação indireta (HAI). A prevalência da IFI reagente foi 12,3% (95% IC: 11,5-13,2%). Triatoma infestans não foi encontrado nas habitações. A ausência de infecção de indivíduos menores de 14 anos e a ausência de T. infestans no inquérito entomológico demonstra o sucesso do programa de controle da doença de Chagas nessas áreas, podendo ser considerada interrompida a transmissão vetorial. In 1999, we performed serological and entomological surveys to evaluate the impact of vectorial control measures against transmission of Chagas' disease in the endemic area of Mambaí and Buritinópolis (GO). A census was undertaken of the population, after which the entomological survey was performed regarding the dwelling units and serological evaluation of the human population. Blood samples were collected by digital puncture in filter paper. The first serologic test performed to detect antibodies against Trypanosoma cruzi was the indirect immunofluorescence test (IFI) with 1/20 positive dilution as cut-off point and, positive samples were further evaluated with indirect hemagglutination reaction (HAI). The prevalence of positive IFI reactions was 12.3% (95%CL: 11.5-13.2). Triatoma infestans was not found within the dwellings. The absence of infection among individuals younger than 14 years and, the absence of T. infestans during the last entomological survey demonstrates the success of the control program of Chagas' disease in the studied area where the vectorial transmission can be considered to have been interrupted

Avaliação do impacto das ações de controle vetorial da doença de Chagas através do inquérito sorológico em Mambaí/Buritinópolis, Goiás