Autor(es): Kamgang Basile, Nchoutpouen Elysée, Simard Frédéric, Paupy Christophe

Resumo: The invasive mosquito Aedes albopictus is often considered a poor vector of human pathogens, owing to its catholic feeding behavior. However, it was recently incriminated as a major vector in several Chikungunya epidemics, outside of its native range. Here we assessed two key elements of feeding behavior by Ae. albopictus females in Yaoundé, Cameroon, Central Africa. Host preference was explored - the human-biting activity of females was monitored over 24 h to determine periods of maximum bite exposure. Analysis of ingested blood in outdoor-resting females showed that Ae. albopictus preferentially fed on humans rather than on available domestic animals (95% of the blood meals contained human blood). Our results further showed that Ae. albopictus is a day-biting species in Yaoundé, with a main peak of activity in the late afternoon. This is the first report on the feeding behavior of Ae. albopictus in Central Africa. The species is highly aggressive to humans - might therefore be involved in human-human virus transmission in this setting.

Palavras-Chave: Aedes albopictus; Feeding behavior; Host preference; Nychthemeral activity; Cameroon

Imprenta: Parasites & Vectors, v. 5, p. 57, 2012

Identificador do objeto digital: 10.1186/1756-3305-5-57

Descritores: Chikungunya Virus - Virus ; Chikungunya virus - Transmission ; Chikungunya virus - Epidemic

Data de publicação: 2012

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