Entomological investigation of a sylvatic yellow fever area in São Paulo State, Brazil

Cadernos de Saúde Pública

Vera L. F. De Camargo-neves²  Daniela W. Poletto²  Lílian A. C. Rodas²  Márcio L. Pachioli²  Rubens P. Cardoso²  Sirle A. S. Scandar²  Susy M. P. Sampaio²  Paulo H. Koyanagui²  Mauricio V. Botti²  Luis F. Mucci²  Almério De C. Gomes¹ 

[1] ,Secretaria de Estado de Saúde Superintendência de Controle de Endemias São Paulo,Brasil

关键词: Yellow Fever;    Culicidae;    Insect Vectors;    Entomology;    Febre Amarela;    Culicidae;    Insetos Vetores;    Entomologia;   

DOI  :  10.1590/S0102-311X2005000400031

来源: SciELO

【 摘 要 】

Following reports of two autochthonous cases of sylvatic yellow fever in the State of São Paulo, Brazil, in 2000, entomological surveys were conducted with the objective of verifying the occurrence of vector species in forest environments close to or associated with riparian areas located in the western and northwestern regions of the State. Culicidae were captured in 39 sites distributed in four regions. Haemagogus leucocelaenus and Aedes albopictus were the most abundant species and were captured in all the regions studied. H. leucocelaenus was the most abundant species in the municipalities of Santa Albertina and Ouroeste, where the two cases of sylvatic yellow fever had been reported. Mosquitoes from the janthinomys/capricornii group were only found at eight sites in the São José do Rio Preto region, while Sabethes chloropterus was found at one site in Ribeirão Preto. H. leucocelaenus showed its capacity to adapt to a secondary and degraded environment. Our results indicate a wide receptive area for yellow fever transmission in the State of São Paulo, with particular emphasis on the possibility of H. leucocelaenus being involved in the maintenance of this sylvatic focus of the disease.

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