Institut Pasteur de Dakar, Dakar, Senegal.
PLoS Negl Trop Dis. 2012;6(6):e1649. doi: 10.1371/journal.pntd.0001649. Epub 2012 Jun 12.
The risk of human infection with sylvatic chikungunya (CHIKV) virus was assessed in a focus of sylvatic arbovirus circulation in Senegal by investigating distribution and abundance of anthropophilic Aedes mosquitoes, as well as the abundance and distribution of CHIKV in these mosquitoes. A 1650 km(2) area was classified into five land cover classes: forest, barren, savanna, agriculture and village. A total of 39,799 mosquitoes was sampled from all classes using human landing collections between June 2009 and January 2010. Mosquito diversity was extremely high, and overall vector abundance peaked at the start of the rainy season. CHIKV was detected in 42 mosquito pools. Our data suggest that Aedes furcifer, which occurred abundantly in all land cover classes and landed frequently on humans in villages outside of houses, is probably the major bridge vector responsible for the spillover of sylvatic CHIKV to humans.
通过调查亲人类埃及伊蚊的分布和丰度，以及这些蚊子中寨卡病毒的丰度和分布，评估了塞内加尔一个丛林虫媒病毒传播焦点中人类感染丛林型基孔肯雅（CHIKV）病毒的风险。将一个 1650 平方公里的区域划分为五个土地覆盖类别：森林、荒地、热带稀树草原、农业和村庄。2009 年 6 月至 2010 年 1 月期间，使用人类着陆采集法从所有类别中采集了 39799 只蚊子。蚊子的多样性极高，总的来说，在雨季开始时，媒介的丰度达到高峰。在 42 个蚊子池中检测到了 CHIKV。我们的数据表明，广泛存在于所有土地覆盖类别中，并且在村庄房屋外频繁叮咬人类的埃及伊蚊 furcifer 可能是导致丛林型 CHIKV 向人类溢出的主要桥梁媒介。
