Malaria: Wisconsin Data

Cases of malaria in Wisconsin residents have been reported each year since 2001. There have been 361 reported cases of malaria in Wisconsin between 2001 and 2024, with an average of 15 cases reported each year. All of these cases were reported among people who traveled outside of the U.S. to a country with local spread of malaria.

Malaria is preventable.

Following are the statewide data for malaria. For information on national data, visit CDC's (Centers for Disease Control and  Prevention) Data and Statistics on Malaria in the United States.

Additional malaria data is available on the Wisconsin Communicable Disease Surveillance Data dashboard

Visit the Department of Health Services Malaria Reporting and Surveillance webpage for reporting requirements for health care professionals.

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Total malaria cases (2015-2024)

Wisconsin Travel-Associated Malaria Cases 2015-2024: 2015, 5 case; 2016, 20 cases; 2017, 10 cases; 2018, 16 cases; 2019, 14 cases; 2020, 5 cases; 2021, 17 cases; 2022, 24 cases; 2023, 20 cases; 2024, 18 cases

Malaria cases by species (2011-2020)

Wisconsin travel-related malaria cases, by species

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Glossary

 
Last revised December 12, 2025