Encyclopedia of Entomology

2008 Edition
| Editors: John L. Capinera

Venezuelan Equine Encephalitis

Reference work entry
DOI: https://doi.org/10.1007/978-1-4020-6359-6_3955

Venezuelan equine encephalitis (VEE), or Venezuelan encephalitis, is principally a disease of rodents and horses, but does occur in humans. In South America, tens of thousands of human cases have been recorded, and hundreds of thousands of horse infections have been documented. It may pass undetected for decades and then erupts into significant epizootics, perhaps because it mutates easily. Strains of the virus differ considerably in their ability to infect mosquitoes and animal hosts. This viral disease is caused by an alpha virus of the Tongaviridae, and is transmitted by numerous mosquitoes, including Aedes, Culex, Psorophora, Mansonia, and Deinoceritesspp. It is found in South and Central America, but occasionally occurs in southern areas of North America. In humans, it is characterized by fever, chills, headache, nausea, vomiting, and muscle and back pain. Generally, humans recover within a few weeks, with most of the time after the first few days consisting simply of lethargy...

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© Springer Science+Business Media B.V. 2008