Most people recover from the disease. When more severe symptoms occur, they can range from fever, rash and headache to meningitis, encephalitis, coma and death. People who live or work in areas where active cases have been identified are at risk of getting West Nile virus if bitten by an infected mosquito. However, people over the age of 50 and those with weak immune systems are at greater risk for more serious illness. There is no specific treatment for West Nile virus, nor is there a vaccine.
Most people recover completely within two weeks.
In more severe infections, intensive supportive therapy may be needed. Clean clogged roof gutters. Empty plastic pools when not in use and drain swimming pool covers. At least weekly, change water in bird baths and flush sump pits. Stock ornamental ponds with goldfish.