West Nile Virus Definition

wĕst nīl
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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West Nile virus