The Wisconsin Department of Health Services (DHS) and Oconto County Public Health have identified five additional cases of measles in Oconto County. The additional cases are linked to the nine cases confirmed in the county on August 2, 2025, bringing the total number of cases to 14. To protect the privacy of individuals associated, personal health details about the cases will not be shared.
The ongoing investigation indicates that measles is spreading locally. DHS is working in coordination with Oconto County Public Health and surrounding local public health departments to identify and directly notify people with known exposures.
At this time, the investigation has not identified locations in public settings for which a full list of exposed people cannot be obtained.
