is a viral disease spread by infected mosquitoes. This disease can affect the central nervous system, causing severe complications and even death. The virus was discovered in 1933. It is estimated to have been reported in 10,000 cases of illness and 1,000 deaths.
St. Louis encephalitis is caused by a virus with the same name. Mosquitoes are infected with this virus when they feed on birds, and infected mosquitoes can transmit the virus to humans and animals. St. Louis encephalitis is
spread from person to person.
A risk factor is something that increases your chance of getting a disease or condition.
Some factors thought to increase the risk of St. Louis encephalitis include:
Living in or visiting the southern, central, or western United States, especially during the
summer and fall
St. Louis encephalitis can result in a wide range of symptoms, or produce no symptoms at all. The disease can be mild, severe, or even fatal. The disease is fatal in 3%-30% of people who develop symptoms. Symptoms associated with St. Louis encephalitis usually appear 5-15 days after the bite of an infected mosquito and may include:
Please be aware that this information is provided to supplement the care
provided by your physician. It is neither intended nor implied to be a
substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER
IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the
advice of your physician or other qualified health provider prior to
starting any new treatment or with any questions you may have regarding a