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Notes on the blood-feeding behavior of Aedes albopictus (Diptera: Culicidae) in Cameroon. | LitMetric

Notes on the blood-feeding behavior of Aedes albopictus (Diptera: Culicidae) in Cameroon.

Parasit Vectors

Institut de Recherche pour le Développement (IRD), UMR MIVEGEC (UM1-CNRS 5290-IRD 224), team BEES, PO Box 64501, Montpellier 34394, France.

Published: March 2012

AI Article Synopsis

Article Abstract

Background: 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 and the human-biting activity of females was monitored over 24 h to determine periods of maximum bite exposure.

Findings: 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.

Conclusion: This is the first report on the feeding behavior of Ae. albopictus in Central Africa. The species is highly aggressive to humans and might therefore be involved in human-human virus transmission in this setting.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3342132PMC
http://dx.doi.org/10.1186/1756-3305-5-57DOI Listing

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