Re-infestation of houses by Triatoma dimidiata after intra-domicile insecticide application in the Yucatán peninsula, Mexico

Memórias do Instituto Oswaldo Cruz

Eric Dumonteil²  Hugo Ruiz-piña²  Eugenia Rodriguez-félix²  Mario Barrera-pérez²  María Jesús Ramirez-sierra²  Jorge E Rabinovich¹  Frédéric Menu¹ 

[1] ,Universidad Autónoma de Yucatán Centro de Investigaciones Regionales Dr. Hideyo Noguchi Laboratorio de ParasitologíaYucatán,México

关键词: vector control;    pyrethroides;    re-colonization;    peridomestic populations;    sylvatic environments;    Mexico;   

DOI  :  10.1590/S0074-02762004000300002

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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