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Babesiosis: Wisconsin Data

The number of people getting sick from babesiosis has been on the rise since 2011.

In 2022, Wisconsin had 91 confirmed and probable cases of babesiosis.

There was a median of 64 cases per year reported from 2018 through 2022.

Babesiosis is preventable and treatable.

Learn more about Tick Bite Prevention.

Read about treatment from the CDC (Centers for Disease Control and Prevention).

The graphs below show statewide data for babesiosis. For national data, visit the CDC webpage on Babesiosis Data and Statistics.

Babesiosis data

Babesiosis Cases in Wisconsin

Total Babesiosis cases by year

Month of illness onset

Average Babesiosis cases by month

Average babesiosis cases by age group

Learn more about Babesiosis.

Contact us

Questions about illnesses spread by ticks? We’re here to help.

Bureau of Communicable Diseases
Phone: 608-267-9003
Fax: 608-261-4976

Last revised August 16, 2023