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Title: Evaluation of the Chagas disease control program in Açucena Municipality, Rio Doce Valley, State of Minas Gerais, Brazil.
Authors: Santos, Adriana dos
Letro, Rejane Balmant
Bem, Vitor Antônio Lemos do
Azeredo, Bernardino Vaz de Mello
Coelho, George Luiz Lins Machado
Diotaiuti, Liléia Gonçalves
Assis, Girley Francisco Machado de
Lana, Marta de
Keywords: Chagas disease
Serological investigation
Triatoma vitticeps
Epidemiological surveillance
Issue Date: 2014
Citation: SANTOS, A. et al. Evaluation of the Chagas disease control program in Açucena Municipality, Rio Doce Valley, State of Minas Gerais, Brazil. Revista da Sociedade Brasileira de Medicina Tropical, v. 47, p. 186-192, 2014. Disponível em: <> Acesso em: 20 ago. 2014.
Abstract: Açucena Municipality, Rio Doce Valley, State of Minas Gerais, Brazil temporarily (2001-2005) interrupted epidemiological surveillance for Chagas disease. The objective of this work was to evaluate the Chagas Disease Control Program (CDCP) in Açucena and to offer suggestions for improving local epidemiological surveillance. Methods: This study was conducted in three phases: I) a serological investigation of schoolchildren aged 5 to 15 years using an enzyme-linked immunosorbent assay (ELISA) test performed on blood collected on fi lter paper followed by ELISA, indirect immunofl uorescence (IIF) and indirect hemaglutination (IHA) on venous blood for borderline cases and those in the gray zone of reactivity; II) vector evaluation using the data obtained by local health agents during 2006-2010; and III) examination by ELISA, IIF and IHA of serum samples from the inhabitants of houses where infected Triatoma vitticeps was found and evaluation of their knowledge about Chagas disease. Results: Five individuals had inconclusive results in the ELISA screening but were seronegative for Chagas disease. The triatomine evaluation revealed the presence of three species: Triatoma vitticeps, Panstrongylus megistus and Panstrongylus diasi. Triatoma vitticeps was the most prevalent and widespread, with a higher (67%) index of Trypanosoma cruzi fl agellates and evidence of colonization. Most of the inhabitants of the infested houses recognized triatomines and had basic knowledge about Chagas disease. Conclusions: Although T. vitticeps is not clearly associated with Chagas disease transmission, these results highlight the importance of maintaining CDCP in endemic areas and the need for greater emphasis on epidemiological surveillance, especially in areas with important vectorial changes or that have been modifi ed by human intervention.
ISSN: 0104-5962
metadata.dc.rights.license: A Revista da Sociedade Brasileira de Medicina Tropical permite o depósito das versões pré-print e pós-print de um artigo. Permite remixagem, adaptação e nova criação a partir da obra para fins não comerciais desde que seja atribuído o crédito ao autor (CC BY-NC). Fonte: Diadorim <>. Acesso em: 10 fev. 2020.
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