About West Nile Virus

Symptoms of West Nile Virus

West Nile virus symptoms are usually mild. In fact, most people have no symptoms and never become ill. However, in rare cases, West Nile virus can cause serious illness and even death.

Common symptoms:

Some people may become ill 3-15 days after being bitten by an infected mosquito. Possible symptoms include:

• Fever
• Headache
• Rash
• Body aches

Severe symptoms:

Less than 1 percent of people infected with West Nile virus will develop severe illness. However, in some individuals, particularly the elderly, West Nile virus can cause West Nile encephalitis, which is inflammation of the brain. This could lead to permanent neurological damage and death.

West Nile virus could also cause meningitis, which is inflammation of the lining of the brain and spinal cord. Other severe symptoms include:

• High fever
• Stiff neck
• Confusion
• Muscle weakness
• Permanent neurological damage

2014 video of former Evergreen Park Mayor James Sexton, who survived West Nile virus

Treatment for West Nile Virus

There is no specific treatment for West Nile disease. No vaccines or medicines can prevent the disease. In more severe cases, hospitalization, intravenous fluids, airway management and respiratory support may be necessary.