Jamestown Canyon Virus: Wisconsin Data

Jamestown Canyon virus is relatively rare in Wisconsin, though the average number of reported cases each year has recently increased. Jamestown Canyon virus is the second most common disease spread by mosquitoes in Wisconsin, after West Nile virus.

Cases of Jamestown Canyon virus are more common in the northern part of the state.

In 2023, Wisconsin had 13 probable and confirmed cases of Jamestown Canyon virus.

The first case of Jamestown Canyon virus in Wisconsin was identified in 2011.

Jamestown Canyon virus is preventable.

This page shows historical statewide data for Jamestown Canyon virus.

For the current year's data and for national data, visit the CDC (Centers for Disease Control and Prevention) Data and Maps page for Jamestown Canyon virus.