Journal
PARASITES & VECTORS
Volume 5, Issue -, Pages -Publisher
BMC
DOI: 10.1186/1756-3305-5-57
Keywords
Aedes albopictus; Feeding behavior; Host preference; Nychthemeral activity; Cameroon
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Funding
- French government through Agence Nationale pour la Recherche (ANR) [05 SEST 010-01]
- IRD/DSF
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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 Yaounde, 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 Yaounde, 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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