Back فيروس غرب النيل Arabic فيروس غرب النيل ARZ Virus del Nilu Occidental AST Virus del Nil occidental Catalan West-Nil-Virus German Ιός του Δυτικού Νείλου Greek Okcidentnila viruso Esperanto Virus del Nilo Occidental Spanish Lääne-Niiluse viirus Estonian ویروس نیل غربی Persian
| West Nile virus | |
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| A micrograph of the West Nile Virus, appearing in yellow | |
Virus classification 
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| (unranked): | Virus |
| Realm: | Riboviria |
| Kingdom: | Orthornavirae |
| Phylum: | Kitrinoviricota |
| Class: | Flasuviricetes |
| Order: | Amarillovirales |
| Family: | Flaviviridae |
| Genus: | Flavivirus |
| Species: | West Nile virus
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West Nile virus (WNV) is a single-stranded RNA virus that causes West Nile fever. It is a member of the family Flaviviridae, from the genus Flavivirus, which also contains the Zika virus, dengue virus, and yellow fever virus. The virus is primarily transmitted by mosquitoes, mostly species of Culex. The primary hosts of WNV are birds, so that the virus remains within a "bird–mosquito–bird" transmission cycle.[1] The virus is genetically related to the Japanese encephalitis family of viruses. Humans and horses both exhibit disease symptoms from the virus, and symptoms rarely occur in other animals.
- ^ Mackenzie, John S; Gubler, Duane J; Petersen, Lyle R (2004). "Emerging flaviviruses: the spread and resurgence of Japanese encephalitis, West Nile and dengue viruses". Nature Medicine. 10 (12s): S98–S109. doi:10.1038/nm1144. PMID 15577938. S2CID 9987454.