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West Nile fever; West Nile virus: Specialty: Infectious disease: Symptoms: None, fever, headache, vomiting or diarrhea and muscle aches rash [1] Complications: Encephalitis, meningitis [1] Usual onset: 2 to 14 days after exposure [1] Duration: Weeks to months [1] Causes: West Nile virus spread by mosquito [1] Diagnostic method: Based on ...
"About one out of 150 of those people that develop signs and symptoms can actually develop a more severe disease, like West Nile encephalitis, where we have the swelling of the brain that could ...
In about 1 in 150 people who develop symptoms, the virus can infect the central nervous nervous system and cause severe illness called West Nile neuroinvasive disease, the experts note.
Here's what to know about West Nile virus symptoms and what happens if you get sick. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...
West Nile virus. 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]
U.S. West Nile virus (WNV) neuroinvasive disease incidence as of Sep 4, 2012. The West Nile virus quickly spread across the United States after the first reported cases in Queens, New York, in 1999. The virus is believed to have entered in an infected bird or mosquito, although there is no clear evidence.
West Nile virus is spread by mosquitoes. This is the peak time of year to become infected. ... Symptoms typically appear between three and 14 days after being bitten. Serious complications ...
West Nile virus (WNV) infection typically manifests with most individuals remaining asymptomatic, while approximately 20-40% of those infected develop symptoms ranging from mild flu-like illness to severe West Nile encephalitis. [9] The incidence of severe neurologic disease is less than 1%. [9]