Allan Kardec Ribeiro Galardo1, Marinete Marins Póvoa2, Izis Monica Carvalho Sucupira2, Clícia Denis Galardo1, Roseli La Corte Dos Santos3. 1. Laboratório de Entomologia Médica, Divisão de Zoologia, Instituto de Pesquisas Cientificas e Tecnológicas do Estado do Amapá, Macapá, Amapá, Brazil. 2. Laboratório de Pesquisa Básica em Malária, Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ananindeua, Pará, Brazil. 3. Laboratório de Entomologia e Parasitologia Tropical, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Sergipe, São Cristóvão, Sergipe, Brazil.
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.
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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