Less than 1% (1 out of 150 people) infected with WNV will develop severe illness. Symptoms include high fever, headache, neck stiffness, disorientation, convulsions, muscle weakness, vision loss, stupor and numbness. In rare cases, WNV can lead to paralysis, coma or death.
When do West Nile symptoms appear?
Symptoms usually occur 3 to 14 days after a person is bitten by an infected mosquito. Symptoms can last a few days up to several weeks. They usually go away on their own. Contact your doctor if you have any of these symptoms and have recently been bitten by a mosquito.
What is West Nile fever?
Summary. West Nile virus (WNV) is an infectious disease that first appeared in the United States in 1999. Infected mosquitoes spread the virus that causes it. People who get WNV usually have no symptoms or mild symptoms. The symptoms include a fever, headache, body aches, skin rash, and swollen lymph glands.
Is West Nile serious?
Fortunately, most people infected with WNV do not feel sick. 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.
What are the symptoms of West Nile virus in humans?
Symptoms. Febrile illness (fever) in some people. About 1 in 5 people who are infected develop a fever with other symptoms such as headache, body aches, joint pains, vomiting, diarrhea, or rash. Most people with this type of West Nile virus disease recover completely, but fatigue and weakness can last for weeks or months.
Is West Nile virus still a problem in Ohio?
West Nile virus is now established in Ohio where cases occur each year and seasonal epidemics can flare up under certain conditions in the summer and continue into the fall. The best way to prevent West Nile virus disease is to prevent mosquito bites.
Should I go to the hospital for West Nile fever?
Mild symptoms of West Nile fever usually resolve on their own. For signs or symptoms of serious infection, such as severe headaches, a stiff neck, disorientation or confusion, seek medical attention right away. A serious infection generally requires hospitalization. Request an Appointment at Mayo Clinic.
How can I protect myself from West Nile Virus (WNV)?
Exposure to mosquitoes where West Nile virus exists increases your risk of getting infected. Protect yourself from mosquitoes by using mosquito repellent and wearing clothing that covers your skin to reduce your risk.
