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DHS
Legionellosis
Legionella bacteria are found naturally in freshwater environments, like lakes and streams, and can become a health concern when it grows and spreads in manmade water systems (e.g., showerheads, cooling towers, hot tubs). This bacteria can cause a serious type of pneumonia called Legionnaires disease or a less serious illness called Pontiac fever.
Recent Updates
- July 19th: The Minnesota Department of Health (MDH) reported a cluster of 5 confirmed cases of Legionnaires' disease among people who live or spent time in Grand Rapids, MN. The environmental source of the illnesses has not yet been determined.
- Since January 2023, 8 cases of Legionellosis have been linked to Eau Claire County. WI DHS and Eau Claire County encourages public health and partners to help with diagnosing and reporting cases.
- Other states have also reported cases.
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