West Nile fever
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Related to West Nile fever: West Nile encephalitis
West Nile fe·ver
febrile illness caused by West Nile virus (q.v.).
West Nile fever
See West Nile encephalitis.
West Nile feverWest Nile meningoencephalitis Infectious disease An acute, mosquito-borne flaviviral infection endemic–rarely, epidemic–in the Near East, Africa, former Soviet Union, India Clinical After a 3-6 day incubation, children present with a nonspecific febrile illness; older Pts develop a mild dengue-like disease with fever, rash that clears without desquamation, frontal headaches, orbital pain, backaches, myalgia, anorexia, lymphadenopathy, leukopenia, sore throat and possibly meningoencephalitis in the elderly; usually it is self-limited, and resolves in a wk. See Dengue fever.
West Nile fe·ver(west nīl fē'vĕr)
Infection by West Nile virus, which is spread by mosquitoes. In mild infections, fever, headache, and muscle ache may last a few days. In severe infections, encephalitis, hyperpyrexia, stiff neck, convulsions, paralysis, and coma may last several weeks; resulting deficits may become permanent.
West Nile feverA flavivirus arthropod-borne (arboviral) infection endemic mainly in birds and spread by culicine mosquitoes. The disease causes a feverish illness mainly affecting young children. There is headache muscle pain, enlarged lymph nodes and a rash of slightly raised spots. Widespread epidemics in the USA in 2002-the first reported in the Western hemisphere-featured a high percentage of cases of encephalitis, especially in elderly patients, with a mortality of about 9 per cent. New features were noted, including a poliomyelitis-like involvement of anterior horn cells with muscle paralysis.
West Nile,a province in Uganda where the virus was first discovered in 1937.
West Nile encephalitis virus - a Flavivirus in the family Flaviviridae. Synonym(s): West Nile virus
West Nile fever - a febrile illness caused by West Nile virus, a member of the family Flaviviridae, and characterized by headache, fever, maculopapular rash, myalgia, lymphadenopathy, and leukopenia; spread by Culex mosquitoes.
West Nile virus - Synonym(s): West Nile encephalitis virus