Overview
- State officials announced Thursday that an infant in southwestern Wisconsin died of measles and that the coroner listed measles as the immediate cause of death.
- Wisconsin is reporting 431 confirmed cases across 13 counties in 2026, with nearly all infections in people who were not vaccinated and multiple hospitalizations for severe illness.
- The Wisconsin Department of Health Services is recommending an early MMR dose for some infants aged 6–11 months who face likely exposure and is offering immune globulin for other exposed infants within six days of contact.
- Since August, state health partners have delivered 2,000 MMR doses to local departments and clinicians have administered more than 42,000 MMR shots in Wisconsin as officials intensify contact tracing and outreach.
- Nationally, the CDC has confirmed more than 4,800 cases this year and several states have reported measles‑associated deaths, a discrepancy driven by different state and federal death‑certification and reporting processes.