An infant in southwestern Wisconsin has died from measles, the first measles death in the state in 36 years. The Wisconsin Department of Health Services announced the death on Thursday, 5 November. The coroner listed measles as the immediate cause of death. State officials released no further details about the child, including age or county of residence, to protect the privacy of the family. The Wisconsin measles death is the third measles-related death reported by a state health department in the United States this week. An infant died in New York earlier in the week, and Pennsylvania reported another death on Wednesday. State health departments have now reported eight measles-related deaths in the United States this year, the highest national toll since 1991.
What officials said about the Wisconsin measles death
Wisconsin Health Secretary Kirsten Johnson told CNN the death was a painful moment for the state. “It is with a heavy heart we are reporting the first death of an infant connected with a measles outbreak in Wisconsin in many years,” Johnson said. The last time someone died of measles in Wisconsin was in 1990. Dr. Ryan Westergaard, the state epidemiologist for communicable diseases, has been briefing reporters through the outbreak. The department said the infant was among the cases in the southwestern part of the state, where the Wisconsin measles outbreak has been centred. The department did not say whether the child had been vaccinated. Children under 12 months old are too young for the first routine MMR dose, normally given between 12 and 15 months of age. The Wisconsin measles toll now stands at one death in an outbreak that has grown for nearly three months.
Wisconsin measles cases reach 431
Wisconsin had reported 431 measles cases as of 3 November, up from 335 two weeks earlier. The cases span 13 counties. It is the highest number of cases in the state in more than 35 years, and the largest Wisconsin measles outbreak in 35 years. All but three of the 431 cases were in people who were not vaccinated. Nine people have been admitted to hospital. The outbreak began on 11 August with two confirmed cases. It grew through the autumn as the virus moved through communities with low vaccination rates. Green Lake County recorded its first confirmed cases the same day, the first county in northeastern Wisconsin affected this year. About 15 percent of kindergartners in the state lacked complete MMR documentation, according to state figures.
A national toll that keeps rising
The Wisconsin measles death arrived in a week that changed the scale of the measles crisis in the United States. On Monday, New York State announced the death of a child in rural Lewis County, the state’s first measles death in more than 30 years. On Wednesday, Pennsylvania health officials reported the state’s sixth measles-associated death this year. Reporting by The Washington Post identified that person as a young mother who had just given birth. More than 4,800 measles cases have been confirmed across 45 states and Washington, D.C. in 2026, the highest single-year total since 1991. The Centers for Disease Control and Prevention has confirmed four measles-associated deaths this year, fewer than the eight reported by states. The gap follows a change in how the CDC counts deaths: it no longer automatically adds deaths confirmed by state officials, and now draws on mortality data from the National Center for Health Statistics.
Why measles is spreading again
Measles was declared eliminated in the United States in 2000, meaning the virus was no longer spreading within the country. That status has been under strain as childhood vaccination rates have fallen in some communities. Measles is one of the most contagious viruses known. It spreads through the air and can stay in a room for up to two hours after an infected person leaves. Up to nine in ten unprotected people who are exposed will become infected. The MMR vaccine is about 97 percent effective after two doses. Public health officials say about 95 percent of a community needs to be vaccinated to stop the virus spreading. The Wisconsin measles outbreak shows what happens when coverage falls below that level in a local area. Wisconsin measles cases moved from two in August to 431 by early November. Health officials in Wisconsin said doctors who had never seen measles in person are now treating it. The Wisconsin measles response includes urging families to check vaccination records and to call a doctor or clinic if a child has a fever and rash after possible exposure.