St. Louis Encephalitis is a mosquito-borne viral disease that causes inflammation of the brain.
Many infections with SLE are inapparent but when symptoms occur they can range from fever with headache to coma. Other symptoms include: fatigue, dizziness, weakness and confusion.
Though SLE is maintained by a bird-mosquito cycle (birds do not develop disease), it may occasionally be transmitted to humans by mosquitoes. While the virus can affect anyone, it has it's greatest impact on the very young and the very old because their immune systems are either in a state of development or decline.
No. There is no vaccine because the virus occurs in humans so infrequently.
Prevention is the key. The best way to avoid infection is to avoid getting mosquito bites. Recommendations are:
Last Updated: December 6, 2012