Wisconsin's Harmful Algal Blooms Program
Harmful Algal Blooms program collects information about human and animal
illness and death resulting from exposure to blue-green algae. Tracking
illness information will help the Wisconsin Division of Public
Health measure the problem of blue-green algae in our lakes and rivers.
If you get sick after swimming in a Wisconsin lake or
river, please report
illness. This program does not provide medical treatment,
so if you are experiencing severe symptoms seek medical
When in doubt, best keep out!
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Last revised: March 03, 2011