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Front Biosci (Landmark Ed). 2009 Jan 1;14:3024-34.

The host immunologic response to West Nile encephalitis virus.

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Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA.


West Nile encephalitis virus (WNV) is a small, enveloped, mosquito-transmitted, positive-polarity RNA virus of the Flaviviridae family. This virus is closely related to other arthropod-borne viruses that cause human disease including Dengue, Yellow fever, and Japanese encephalitis viruses. WNV cycles in nature between mosquitoes and birds, but also infects human, horses, and other vertebrates. In humans, WNV disseminates to the central nervous system (CNS) and causes severe disease primarily in the immunocompromised and elderly. Experimental studies have made significant progress in dissecting the viral and host factors that determine the pathogenesis and outcome of WNV infection. This review will focus on the interactions between WNV and the protective and pathogenic host immune responses.

[Indexed for MEDLINE]

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