Journal ArticleDOI
Enhanced arboviral transmission by mosquitoes that concurrently ingested microfilariae.
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Infection, dissemination, and transmission of an arbovirus in mosquitoes are enhanced by concurrent ingestion of microfilariae, and Enhanced transmission of virus may be attributed to increased transit of virus across the midgut wall.Abstract:
Infection, dissemination, and transmission of an arbovirus in mosquitoes are enhanced by concurrent ingestion of microfilariae. Ingestion of Rift Valley fever virus alone infected only 64 percent of female Aedes taeniorhynchus. Of these, only 5 percent of refeeding mosquitoes actually transmitted virus. In contrast, ingestion of the same amount of virus from concurrently microfilaremic (Brugia malayi) gerbils resulted in 88 percent infection and 31 percent transmission. Enhanced transmission of virus may be attributed to increased transit of virus across the midgut wall. Endemic filariasis may promote arbovirus transmission in nature.read more
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References
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Journal ArticleDOI
Intrinsic Factors Affecting Vector Competence of Mosquitoes for Arboviruses
TL;DR: This review focuses on vector competence or vector efficiency, and particular attention is given to recent studies that have contributed to knowledge of intrinsic factors and mechanisms that control the ability of mosquitoes to vector arboviruses.
Journal ArticleDOI
Mechanism of Transmission of Viruses by Mosquitoes
Roy W. Chamberlain,W. D. Sudia +1 more
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Dissemination barriers for western equine encephalomyelitis virus in Culex tarsalis infected after ingestion of low viral doses.
TL;DR: There are two dose-dependent barriers to the transmission of western equine encephalomyelitis virus in infected female Culex tarsalis and the distribution of virus in the tissues of nontransmitting females with either of these barriers is described.
Journal ArticleDOI
Replication and Dissemination of Rift Valley Fever Virus in Culex Pipiens
TL;DR: Examination of legs and bodies separately provided a rapid and efficient method of determining dissemination status and all females developed a disseminated infection and successfully transmitted virus by bite if allowed to feed on a susceptible hamster or suckling mouse.
Journal ArticleDOI
The Effect of Laboratory Colonization on the Vector-Pathogen Interactions of Egyptian Culex pipiens and Rift Valley Fever Virus
TL;DR: This study evaluated changes in infection and transmission rates, and viral titers in F1 through F16 generation Cx.