Wisconsin Department of Health Services
Press Release

DHS Confirms First Cases of Measles in Wisconsin This Year

No known public exposure identified, overall risk to the public is low

By - Aug 2nd, 2025 03:31 pm

The Wisconsin Department of Health Services (DHS) and Oconto County Public Health have confirmed nine cases of measles in Oconto County. One case was confirmed through testing at the Wisconsin State Laboratory of Hygiene, with eight additional cases confirmed based on exposure and symptoms. All of the cases were exposed to a common source during out-of-state travel. No additional information will be released due to privacy laws. DHS, in coordination with the Oconto County Public Health, is working to identify and notify people who may have been exposed to the measles virus. At this time no public points of exposure have been identified and the risk to the community remains low.

Measles is a highly contagious disease that can be spread from person to person through the air and can stay in the air for two hours after a sick person coughs or sneezes. It is so contagious that if one person gets it, up to 90% of the people around them may also become infected if they are not vaccinated

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Please do not reply directly to this email message. If you have a question, please email DHSMedia@dhs.wisconsin.gov or call the media line at 608-266-1683.

NOTE: This press release was submitted to Urban Milwaukee and was not written by an Urban Milwaukee writer. While it is believed to be reliable, Urban Milwaukee does not guarantee its accuracy or completeness.

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DHS Confirms First Cases of Measles in Wisconsin This Year

No known public exposure identified, overall risk to the public is low

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