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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 104, No. 4, 2009, pp. 668-670
Bioline Code: oc09150
Full paper language: English
Document type: Short Communication
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 104, No. 4, 2009, pp. 668-670

 en Susceptibility of Triatoma infestans check for this species in other resources to deltamethrin in Rio Grande do Sul, Brazil
Sonoda, Ivan Vieira; Pessoa, Grasiele Caldas D'Ávila; Cortez, Mirko Rojas; Dias, João Carlos Pinto; Romanha, Alvaro José & Diotaiuti, Liléia

Abstract

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 check for this species in other resources 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. infestans from RS.

Keywords
Triatoma infestans - pyrethroid resistance - Chagas disease

 
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