Babesiosis: Wisconsin Data

The number of people getting sick from babesiosis has been on the rise.

In 2024, a total of 141 confirmed and probable cases of babesiosis were reported, the highest ever documented in Wisconsin.

Wisconsin had an average of 85 cases per year reported from 2015 through 2024.

Babesiosis is preventable and treatable. Learn more about Tick Bite Prevention.

Read about Treatment and Signs and Symptoms from the CDC (Centers for Disease Control and Prevention).

The map and graphs on this page show statewide data for babesiosis.

For national data, visit the CDC webpage on Babesiosis Data and Statistics.