West Nile Virus Definition
A virus transmitted from infected birds by the common culex mosquito and causing a form of encephalitis (West Nile encephalitis or feverWest Nile encephalitisWest Nile fever) that is characterized by fever, headache, drowsiness, nausea, and a rash.
Webster's New World
A particular flavivirus, dangerous to humans.
- West Nile encephalitis virus
Origin of West Nile Virus
After the West Nile District of Uganda, where the virus was first isolated in 1937.
From American Heritage Dictionary of the English Language, 5th Edition
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