Logo of the U.S. Centers for Disease Control and Prevention (CDC). Image via Wikimedia Commons, public domain.
(The Center Square) – Wisconsin has crossed another threshold in its measles outbreak.
The state’s Department of Health Services on Monday said Wisconsin has more than 250 measles cases.
"As of October 6, the Wisconsin Department of Health Services has confirmed 258 cases of measles in Wisconsin so far in 2026," the Health Department said in its latest update.
As has been the case for months, most of those cases are in the southwestern part of the state.
"There have been 234 confirmed and six probable cases in the outbreak in Grant, Iowa, Lafayette, and Vernon Counties," DHS added. "The ongoing investigation indicates that measles is spreading locally. DHS, in coordination with Grant, Iowa, Lafayette, and Vernon County health departments, are working to identify and notify people who may have been exposed to the measles virus."
Wisconsin's public health managers also said there have been five confirmed measles cases in Marathon County and 11 confirmed measles cases in Chippewa County.
The Health Department said both of those measles clusters are related to "out-of-state travel," though the department is not saying where the people with the measles traveled to or from.
"When an outbreak is first identified, public health agencies focus on active case finding in order to understand who is affected, how the outbreak is spreading, and who may be most at risk," the Health Department said. "Public health agencies continue to monitor reports of illness, conduct enhanced surveillance in outbreak areas, and work closely with healthcare and community health partners. Additionally, public health agencies continue working to help people protect themselves and prevent additional measles cases by providing access to vaccines and monitoring for any potential public exposures to measles."
The Health Department said the best way that people can protect themselves is to get the measles vaccine.
The U.S. Centers for Disease Control and Prevention has not updated its measles count this week. Through last week, the CDC reported 3,887 confirmed in 47 states or jurisdictions across the country.
For all of last year, the CDC said it confirmed 2,289 measles cases across the country.
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