Abstract

OBARA, Marcos Takashi et al. Haemagogus janthinomys and Haemagogus leucocelaenus naturally infected with yellow fever virus in Federal District, Brazil, 2007-2008. Epidemiol. Serv. Saúde [online]. 2012, vol.21, n.3, pp.457-463. ISSN 1679-4974.  http://dx.doi.org/10.5123/S1679-49742012000300011.

OBJECTIVE: to investigate the natural infectivity of Haemagogus janthinomys and Haemagogus leucocelaenus for yellow fever virus in areas with reported human cases and epizootics in non-human primates, in the Federal District (DF), Brazil. METHODS: Culicidae specimens were captured using hand net and oral aspirator, in the period since December 2007 to February 2008; taxonomic identification and virus research were performed at the Evandro Chagas Institute/Ministry of Health; mouse inoculation and indirect immunofluorescence tests were performed to isolate the viral agent. RESULTS: pools of Hg. janthinomys and Hg. leucocelaenus proceeding from the Administrative Region of São Sebastião/DF were positive for yellow fever virus. CONCLUSION: confirmation of natural infectivity by Hg. janthinomys and Hg. leucocelaenus suggests that the area surveyed is receptive and vulnerable to yellow fever virus; therefore, it is essential to improve the strategies for epidemiological surveillance of yellow fever in the Federal District.

Keywords : Yellow Fever; Culicidae; Insect Vectors; Vector Control.

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