La Crosse virus

**Definition:** A serotype of the species California encephalitis virus (ENCEPHALITIS VIRUS, CALIFORNIA), in the genus ORTHOBUNYAVIRUS, causing human MENINGOENCEPHALITIS. This is the agent most responsible for California encephalitis (ENCEPHALITIS, CALIFORNIA), the most prevalent mosquito-borne disease recognized in the United States.

**Tree numbers:** - B04.820.230.100.500 - B04.820.480.750.640.300.500

**Synonyms:** - LaCrosse Virus