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Humans get West Nile from the bite of an infected mosquito. Usually, the West Nile virus causes no symptoms or only mild, flu-like symptoms. The virus can cause life-limiting illnesses, such as encephalitis, meningitis, or meningoencephalitis. There is no vaccine available to prevent West Nile virus.
Jan 24, 2023 · Symptoms of West Nile Virus. Mild, flu-like symptoms can turn deadly in some. West Nile fever is a mosquito-borne viral infection of which 75 percent of cases will have little to no recognizable symptoms. The remaining 25 percent may develop a fever, headache, vomiting, or rash.
Oct 3, 2017 · Key facts. West Nile virus can cause a fatal neurological disease in humans. However, approximately 80% of people who are infected will not show any symptoms. West Nile virus is mainly transmitted to people through the bites of infected mosquitoes. The virus can cause severe disease and death in horses. Vaccines are available for use in horses ...
Jul 3, 2023 · Symptoms. Most people infected with the West Nile virus do not experience any symptoms though some may develop a fever, headache, body aches, joint pains, vomiting and rash. While most people fully recover, some may experience ongoing weakness and fatigue for months.
Apr 11, 2024 · Symptoms of West Nile virus. When symptoms of West Nile virus do occur, they typically include fever, headache, body aches, weakness, and fatigue. Some people may also experience nausea, vomiting, diarrhea, rash, or swollen lymph glands. The most worrisome complication from a West Nile virus infection is if it spreads to the central nervous ...
About 1 in 5 people who are infected develop a fever and other symptoms. About 1 out of 150 infected people develop a serious, sometimes fatal, illness. You can reduce your risk of WNV by using insect repellent and wearing long-sleeved shirts and long pants to prevent mosquito bites.
Signs of West Nile virus infection are similar to those of other viral infections. There may be no specific findings on a physical examination. About one half of people with West Nile virus infection may have a rash. Tests to diagnose West Nile virus include: Blood test or a spinal tap to check for antibodies against the virus; Head CT scan ...
