St. Louis encephalitis (SLE)

Definition

St. Louis encephalitis (SLE) is a viral disease that causes inflammation of the brain and is transmitted by mosquitoes. It predominantly affects individuals in North America, particularly in the United States.

5 Must Know Facts For Your Next Test

1. SLE is caused by the St. Louis encephalitis virus (SLEV), a member of the Flavivirus genus.
2. The primary vectors for SLEV transmission are Culex mosquitoes.
3. Symptoms of SLE can range from mild flu-like illness to severe neurological conditions, including encephalitis, coma, or death.
4. There is no specific antiviral treatment for SLE; management focuses on supportive care to relieve symptoms.
5. Older adults and those with weakened immune systems are at higher risk for severe complications from SLE.

Related terms

West Nile Virus: A flavivirus transmitted by mosquitoes that can cause similar neurological diseases as SLE.

Japanese Encephalitis: A viral infection spread by mosquitoes in Asia that also causes brain inflammation.

Dengue Fever:

A mosquito-borne tropical disease caused by the dengue virus, another member of the Flavivirus genus.