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Revista de Saúde Pública

versão On-line ISSN 1518-8787


PASSOS, Ricardo A; MARQUES, Gisela R A M; VOLTOLINI, Júlio C  e  CONDINO, Maria Lúcia F. Dominance of Aedes aegypti over Aedes albopictus in the southeastern coast of Brazil. Rev. Saúde Pública [online]. 2003, vol.37, n.6, pp.729-734. ISSN 1518-8787.

OBJECTIVE: To assess infestation of Aedes aegypti and Aedes albopiticus and describe their association with weather conditions and container colonization in urban areas. METHODS: The town of São Sebastião in the southeastern coast of Brazil was selected. It was used data from the Dengue and Yellow Fever Vector Control Program of the State of São Paulo, Brazil, that encompasses entomological surveillance at strategic positions, traps and foci demarcation. Strategic positions sites are fixed sites with containers in adequate conditions for larvae growth. Statistical analysis was performed using Kruskal-Wallis test, Dwass-Steel-Chritchlow-Fligne test and Mann-Whitney test. RESULTS: There was found an annual growth of positive traps and strategic positions of Ae. aegypti and a drop in Ae. albopictus population. An increase in immature Ae. aegypti and a drop of the other species were also seen. A gradual increase of positive dwellings for Ae. aegypti was noticed outgrowing Ae. albopictus population. There was a weak correlation of the Aedes species with abiotic factors. Higher numbers of immature mosquitoes of both species were found in artificial containers which could be eliminated. CONCLUSIONS: The study showed Ae. aegypti was predominant in urban areas, indicating that its growth seems to have affected the coexistence with other species. Natural selection could be in place contributing to Aedes aegypti and albopictus species separation.

Palavras-chave : Aedes; Ecology, vectors; Insect vectors; Dengue; Yellow fever; Vector control.

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