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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 ]
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, according to the US ...
West Nile fever is an infection by the West Nile virus, which is typically spread by mosquitoes. [53] In about 80% of infections people have few or no symptoms . [ 54 ] About 20% of people develop a fever , headache, vomiting, or a rash. [ 53 ]
West Nile virus is endemic in many parts of the world. The virus has demonstrated an ability to cause sporadic outbreaks and endemic transmission in previously unaffected regions. In recent decades, there has been a significant increase in the frequency and geographic distribution of WNV outbreaks globally.
Thousands of people are infected with West Nile each year, though the majority never know it because they don’t develop symptoms. According to the CDC , about 1 in 5 people will experience: Fever
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.
West Nile virus (WNV) is a mosquito-borne virus first identified in the United States in 1999. ... About 20% of infected individuals develop West Nile fever, which includes symptoms like: fever ...
Additional possible viral causes are arboviral flavivirus (St. Louis encephalitis, West Nile virus), bunyavirus (La Crosse strain), arenavirus (lymphocytic choriomeningitis virus), reovirus (Colorado tick virus), and henipavirus infections. [14] [15] The Powassan virus is a rare cause of encephalitis. [16]