Autor(es): da Grao Macoris, Maria de Lourdes; Macoris Andrighetti, Maria Teresa; Garbeloto Otrera, Vanessa Camargo; de Carvalho, Lidia Raquel; Caldas Junior, Antonio Luiz; Brogdon, William G.

Resumo: Dengue and dengue hemorrhagic fever, vector-borne diseases transmitted by the mosquito Acdes aegypti, are presently important public health problems in Brazil. As the strategy for disease control is based on vector control through the use of insecticides, the development of resistance is a threat to programs efficacy. The objective of this study was to compare the Acdes aegypti susceptibility in nine vector populations from the state of Sao Paulo and seven from Northeast region of Brazil, since there was a difference on group of insecticide used between the areas. Bioassays with larvae and adult were performed according to the World Health Organization methods. The results showed higher resistance levels to organophosphates group in populations from the Northeast region where this group was used for both larvae and adult control than in Sao Paulo where organophosphates were used for larvae and pyretroids for adult control. Resistance to pyretroids in adults was widespread in Sao Paulo after ten years of use of cypermethrin while in vector populations from the Northeast region it was punctual. The difference in resistance profile between the areas is in accordance to the group of insecticide used.

Palavras-Chave: Aedes aegypti; Resistance to insecticides; Vector control

Imprenta: Memorias do Instituto Oswaldo Cruz, v. 102, n. 8, p. 895-900, 2007

Identificador do objeto digital: 10.1590/S0074-02762007000800001

Descritores: Aedes aegypti - Public health

Data de publicação: 2007

INDICADORES

ACESSO