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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 99, No. 3, 2004, pp. 253-256
Bioline Code: oc04045
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 99, No. 3, 2004, pp. 253-256

 en Re-infestation of Houses by Triatoma dimidiata check for this species in other resources after Intra-domicile Insecticide Application in the Yucatán Peninsula, Mexico
Eric Dumonteil; Hugo Ruiz-Piña; Eugenia Rodriguez-Félix; Mario Barrera-Pérez; María Jesús Ramirez-Sierra; Jorge E Rabinovich & Frédéric Menu


In most countries, Chagas disease transmission control remains based on domestic insecticide application. We thus evaluated the efficacy of intra-domicile cyfluthrin spraying for the control of Triatoma dimidiata, the only Chagas disease vector in the Yucatán peninsula, Mexico, and monitored potential re-infestation every 15 days for up to 9 months. We found that there was a re-infestation of houses by adult bugs starting 4 months after insecticide application, possibly from sylvatic/peridomicile areas. This points out the need to take into account the potential dispersal of sylvatic/peridomestic adult bugs into the domiciles as well as continuity action for an effective vector control.

vector control - pyrethroides - re-colonization - peridomestic populations - sylvatic environments - Mexico

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