Experimental Transmission of Venezuelan Equine Encephalitis Virus by Deinocerites Pseudes Dyar and Knab, 19091
- 20 June 1972
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Medical Entomology
- Vol. 9 (3) , 196-200
- https://doi.org/10.1093/jmedent/9.3.196
Abstract
In 5 different experiments, adult female laboratory-reared Deinocerites pseudes mosquitoes, which engorged on infected guinea pigs circulating 107.2 LD50'S or more of Venezuelan equine encephalitis virus in the blood, transmitted infections to normal guinea pigs or hamsters 7 to 27 days after exposure to the donor animals. The infection rate in 50 mosquitoes tested 16 to 20 days after feeding on a viremic guinea pig was 96%. Virus titers in 18 of the specimens tested ranged from 104.2 107.2 LD50'S The transmission rate in 12 infected individuals, each of which engorged on a single hamster 15 or 16 days after ingestion of an infective blood meal, was 42%. The potential role of this species in natural transmission cycles of Venezuelan equine encephalitis in Panama is discussed.Keywords
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