Revista da Sociedade Brasileira de Medicina Tropical (Dec 2015)

Anopheles darlingi and Anopheles marajoara (Diptera: Culicidae) susceptibility to pyrethroids in an endemic area of the Brazilian Amazon

  • Allan Kardec Ribeiro Galardo,
  • Marinete Marins Póvoa,
  • Izis Monica Carvalho Sucupira,
  • Clícia Denis Galardo,
  • Roseli La Corte dos Santos

DOI
https://doi.org/10.1590/0037-8682-0082-2015
Journal volume & issue
Vol. 48, no. 6
pp. 765 – 769

Abstract

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Abstract: INTRODUCTION: This study aimed to evaluate the susceptibility of Anopheles darlingi Root (1926) and Anopheles marajoara Galvão & Damasceno (1942) to pyrethroids used by the National Malaria Control Program in Brazil. METHODS: Mosquitoes from Amapá, Brazilian Amazon, were assessed for resistance to cypermethrin, deltamethrin, and alpha-cypermethrin. Insecticide-impregnated bottles were used as suggested by the CDC/Atlanta. RESULTS: Diagnostic dose for Anopheles darlingi was 12.5µg/bottle during 30 min of exposure. Concentrations for Anopheles marajoara were 20µg/bottle of cypermethrin and deltamethrin and 12.5µg/bottle of alpha-cypermethrin. CONCLUSIONS : No resistance was recorded for Anopheles darlingi , but Anopheles marajoara requires attention.

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