Susceptibility of Triatoma infestans to deltamethrin in Rio Grande do Sul, Brazil

Memórias do Instituto Oswaldo Cruz

Ivan Vieira Sonoda²  Grasiele Caldas D'Ávila Pessoa²  Mirko Rojas Cortez¹  João Carlos Pinto Dias²  Alvaro José Romanha²  Liléia Diotaiuti² 

[1] ,Fiocruz Instituto de Pesquisas René Rachou Laboratório de Triatomíneos e Epidemiologia da Doença de ChagasBelo Horizonte MG ,Brasil

关键词: Triatoma infestans;    pyrethroid resistance;    Chagas disease;   

DOI  :  10.1590/S0074-02762009000400025

来源: SciELO

【 摘 要 】

Strategies for controlling Chagas disease are based on spraying infested houses with pyrethroid insecticides. However, the intense use of these insecticides has promoted resistance of Triatoma infestans and, in Argentina, Bolivia and Southern Brazil, low levels of resistance have been reported. Due to the persistence of T. infestans in the state of Rio Grande do Sul (RS), we evaluated the occurrence of deltamethrin resistance in four strains from different municipalities in comparison to two susceptible strains from Brazil and one resistant strain from Bolivia. The results indicated the absence of resistance in T. infestansfrom RS.

【 授权许可】

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