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垂直感染的Aedes aegypti在唾液中分泌出传染性树状病毒

Gladys Gutierrez-Bugallo^1,2,3, Elodie Calvez⁴, Christelle Dollin⁴

¹Department of Vector Control, Center for Research, Diagnostic, and Reference, Institute of Tropical Medicine Pedro Kourí, PAHO-WHO Collaborating Center for Dengue and Its Control, Havana, 17100, Cuba. ggutierrezbugallo@gmail.com.

|February 26, 2026

概括

奇孔古尼亚病毒 (CHIKV) 和寨卡病毒 (ZIKV) 的垂直传播在埃及蚊子 (Aedes aegypti) 中得到证实. 受感染的雌性后代可以分泌传染性病毒,有助于 arbovirus 的传播.

科学领域:

医学昆虫学医学昆虫学
亚博病毒学亚博病毒学
载体传播疾病载体传播疾病

背景情况:

艾迪斯埃及蚊子将登革热 (DENV), chikungunya (CHIKV) 和寨卡病毒 (ZIKV) 的病毒水平传播给人类.
垂直传播,从受感染的母亲传播给后代,是另一种可能的树冠病毒传播途径.

研究的目的:

评估DENV,CHIKV和ZIKV的垂直传播率在野外衍生的Aedes aegypti种群中.
为了确定母性感染的雌性蚊子是否会在唾液中分泌传染性病毒,从而使后续的人类传播成为可能.

主要方法:

一个来自野外的Aedes aegypti种群被用来评估DENV,CHIKV和ZIKV的垂直传播.
在雌性后代的唾液和头部中分析了传染性病毒的存在.
组合的男性后代进行了病毒存在的测试.

主要成果:

感染性CHIKV和ZIKV分别在15%和11%的雌性后代的唾液中检测到.
14%的雌性后代在头部有传染性DENV-1,尽管唾液测试结果为阴性.
组合的男性后代对CHIKV和ZIKV呈阳性.

结论:

垂直传播是一种被低估的机制,使得Aedes aegypti在没有咬伤病毒宿主的情况下变得具有感染力.
这种垂直路线有助于树冠病毒的持久性和传播.
受感染的男性后代表明,垂直传播的病毒可以在蚊子群体中持续存在,即使在非血液养的个体中也是如此.

关键词:

艾得斯埃吉普提病毒 (Aedes aegypti) 是一个阿尔博病毒是阿尔博病毒.这是一个 Chikungunya.登革热是因为登革热.蚊子蚊子蚊子这是唾液.垂直传输方式垂直传输方式这就是Zika Zika.

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