La Crosse Encephalitis: Wisconsin Data

La Crosse encephalitis virus is rare in Wisconsin, and few cases have been reported in recent years. Historically, most cases of La Crosse encephalitis were reported from the upper Midwestern states, but recently, more cases have been reported from the mid-Atlantic and southeastern states. La Crosse encephalitis is preventable.

Below are the statewide data for La Crosse encephalitis. For information on national data, visit the Centers for Disease Control and Prevention (CDC) Epidemiology and Geographic Distribution page for La Crosse encephalitis virus.

LaCrosse Encephalitis map

La Crosse encephalitis virus data

LaCrosse Encephalitis Virus Cases Year of Onset

 

Month of illness onset

LaCrosse Encephalitis Virus Cases by Month

Age group

LaCrosse Encephalitis Virus Cases by Age Group

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Glossary

 
Last revised September 21, 2022