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首页> 外文期刊>Vector borne and zoonotic diseases >Comparative role of Aedes albopictus and Aedes aegypti in the emergence of Dengue and Chikungunya in central Africa.
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Comparative role of Aedes albopictus and Aedes aegypti in the emergence of Dengue and Chikungunya in central Africa.

机译：白纹伊蚊和埃及伊蚊在中部非洲登革热和基孔肯雅热中的比较作用。

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摘要

Since its discovery in Nigeria in 1991, Aedes albopictus has invaded much of Central Africa, a region where Ae. aegypti also occurs. To assess the relationship between the invasion by Ae. albopictus and the recent emergence of dengue virus (DENV) and chikungunya virus (CHIKV), we undertook vector competence experiments on populations collected from Cameroon and conducted field investigations during concurrent epidemics of DENV and CHIKV in Gabon. Overall, infection and dissemination rates were not significantly different between Ae. albopictus and Ae. aegypti when exposed to titers of 10(8.1) mosquito infectious dose 50/mL and 10(7.5) plaque forming units/mL of DENV type 2 and CHIKV, respectively. Field investigations showed that Ae. albopictus readily bit man, was abundant, and outnumbered Ae. aegypti to a large extent in Gabon, particularly in suburban environments. Nevertheless, Ae. aegypti was predominant in the more urbanized central parts of Libreville. In this city, CHIKV and DENV were detected only in Ae. albopictus. These data strongly suggest that Ae. albopictus acted as the major vector of both viruses in Libreville in 2007, impacting on the epidemiology of DENV and CHIKV in this area.
机译：自1991年在尼日利亚发现伊蚊以来，白纹伊蚊已侵入中非的大部分地区，即埃伊省。埃及也发生。评估之间的关系由Ae入侵。由于我们有白纹病和登革热病毒（DENV）和基孔肯雅热病毒（CHIKV）的出现，我们对从喀麦隆收集的种群进行了载体能力实验，并在加蓬的DENV和CHIKV流行期间进行了田野调查。总体而言，Ae之间的感染和传播率没有显着差异。 albopictus和Ae。当分别暴露于10（8.1）蚊子感染剂量50 / mL和10（7.5）噬菌斑形成单位/ mL DENV 2型和CHIKV的滴度时，埃及伊蚊田野调查表明，李爱玲。 albopictus随便咬人，身体充沛，数量超过Ae。埃及在很大程度上是加蓬的，特别是在郊区环境中。不过，爱埃及人主要在利伯维尔的城市中心地区居住。在这个城市中，仅在Ae中发现了CHIKV和DENV。白化病。这些数据强烈提示Ae。 2007年，白纹病菌是这两种病毒的主要载体，影响了该地区DENV和CHIKV的流行病学。

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