Aedes albopictus may not be vector of dengue virus in human epidemics in Brazil

Abstract

Over 60,500 dengue cases were reported in the state of Espírito Santo (ES), Brazil, between 1995 and1998. The study's purpose was to identify whether Aedes albopictus was transmitting the dengue virus during an epidemic in the locality of Vila Bethânia (Viana County),Vitória, ES. From April 3 to 9, 1998, blood and serum samples were collected daily for virus isolation and serological testing. Four autochthonous cases were confirmed through DEN 1 virus isolation and two autochthonous cases through MAC ELISA testing. Of 37 Ae. aegypti and 200 Ae. albopictus adult mosquitoes collected and inoculated, DEN1 virus was isolated only from a pool of two Ae. aegypti female mosquitoes. The study results suggest that Ae. albopictus still cannot be considered an inter-human vector in dengue epidemics in Brazil. Resumo

Detección de Aedes albopictus (Skuse) (Diptera: Culicidae) en el municipio de Istmina, Chocó, Colombia

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Aedes aegypti, Aedes albopictus, and dengue in Argentina: current knowledge and future directions

“…albopictus in Argentina certainly implies a risk to human health due to its potential to act as a bridge vector between rural and urban DF and YF, and also for other arboviruses as West Nile (Gratz 2004). In America, it was never implicated in dengue transmission and a study performed in Brazil (Degallier et al 2003) suggested that it still cannot be considered an inter-human dengue vector. However, it was found naturally infected with dengue virus in Brazil (Serufo et al 1993) and in Mexico (Ibañez-Bernal et al 1997).…”

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“…In Brazil, Ae. albopictus does not seem to be an important vector of DENV (70) , but its role as vector of CHIKV and other arboviruses in Brazil needs to be more thoroughly studied.…”