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在感染的埃及伊蚊和白纹伊蚊(双翅目:蚊科)中同时传播基孔肯雅病毒和2型登革病毒的评估

Evaluation of Simultaneous Transmission of Chikungunya Virus and Dengue Virus Type 2 in Infected Aedes aegypti and Aedes albopictus (Diptera: Culicidae).

作者信息

Nuckols J T, Huang Y-J S, Higgs S, Miller A L, Pyles R B, Spratt H M, Horne K M, Vanlandingham D L

机构信息

Joint Vaccine Acquisition Program, Medical Countermeasure Systems, United States Army, 1564 Freedman Drive, Fort Detrick, MD 21702.

Biosecurity Research Institute, Kansas State University, 1041 Pat Roberts Hall, Manhattan KS 66506. Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, L-222 Mosier Hall, Manhattan KS 66506.

出版信息

J Med Entomol. 2015 May;52(3):447-51. doi: 10.1093/jme/tjv017. Epub 2015 Mar 15.

Abstract

The simultaneous transmission of chikungunya virus (CHIKV) and dengue viruses (DENV) has been a major public health concern because of their sympatric distribution and shared mosquito vectors. Groups of Aedes aegypti (L.) and Aedes albopictus (Skuse) were orally infected with 1.5 × 10(5) PFU/ml of CHIKV and 3.2 × 10(6) FFU/ml of DENV-2 simultaneously or separately in inverse orders and evaluated for dissemination and transmission by qRT-PCR. Simultaneous dissemination of both viruses was detected for all groups in Ae. aegypti and Ae. albopictus while cotransmission of CHIKV and DENV-2 only occurred at low rates after sequential but not simultaneous infection.

摘要

由于基孔肯雅病毒(CHIKV)和登革病毒(DENV)的同域分布以及共享蚊媒,它们的同时传播一直是一个主要的公共卫生问题。埃及伊蚊(Aedes aegypti (L.))和白纹伊蚊(Aedes albopictus (Skuse))群体分别以1.5×10⁵ PFU/ml的CHIKV和3.2×10⁶ FFU/ml的DENV-2同时或按相反顺序分别经口感染,并通过qRT-PCR评估其传播和扩散情况。在埃及伊蚊和白纹伊蚊的所有群体中均检测到两种病毒的同时传播,而CHIKV和DENV-2的共同传播仅在顺序感染而非同时感染后以低发生率出现。

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