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Phylogenetic tree of West Nile viruses based on sequencing of the envelope gene during complete genome sequencing of the virus [28] WNV is one of the Japanese encephalitis antigenic serocomplex of viruses, together with Japanese encephalitis virus, Murray Valley encephalitis virus , Saint Louis encephalitis virus and some other flaviviruses. [ 29 ]
West Nile fever is an infection by the West Nile virus, which is typically spread by mosquitoes. [1] In about 80% of infections people have few or no symptoms . [ 2 ] About 20% of people develop a fever , headache, vomiting, or a rash. [ 1 ]
The Flaviviridae are part of RNA virus supergroup II, which includes certain plant viruses and bacterial viruses. [2] The family has four genera: [1] [2] Genus Flavivirus, renamed Orthoflavivirus in 2023, (includes Dengue virus, Japanese encephalitis, Kyasanur Forest disease, Powassan virus, West Nile virus, Yellow fever virus, and Zika virus)
CNN: What are the symptoms of West Nile virus disease and how serious is it? Dr. Leana Wen: West Nile virus is the No. 1 cause of mosquito-borne disease in the continental US, ...
West Nile virus (WNV) is a mosquito-borne virus first identified in the United States in 1999. It is most commonly found in Africa, Europe, the Middle East and North America. The virus primarily ...
An example of person-to-person transmission is the herpes simplex virus, which is transmitted by means of intimate physical contact. [13] An example of arboviral transmission is the West Nile virus, which usually is incidentally transmitted to people from the bites of Culex mosquitos, especially Culex pipiens. [14]
West Nile virus is the leading cause of mosquito-borne disease in the continental U.S., according to the U.S. Centers for Disease Control.
Flavivirus, renamed Orthoflavivirus in 2023, [3] is a genus of positive-strand RNA viruses in the family Flaviviridae.The genus includes the West Nile virus, dengue virus, tick-borne encephalitis virus, yellow fever virus, Zika virus and several other viruses which may cause encephalitis, [4] as well as insect-specific flaviviruses (ISFs) such as cell fusing agent virus (CFAV), Palm Creek ...