Health officials in the Chicago area are warning about a growing measles outbreak in southwestern Wisconsin, a popular destination for northern Illinois travelers, where more than 160 cases have been reported.

Wisconsin’s measles outbreak continues to grow. The state’s Department of Health Services said more people in southwest Wisconsin have tested positive for the measles.

Wisconsin DHS has released updated measles case totals for the outbreak in Grant, Iowa, and Lafayette counties.

The cases are concentrated in Iowa, Lafayette and Grant counties. The first two cases were reported to the public Aug. 11.

The Wisconsin Department of Health Services (DHS) has updated the number of measles cases associated with the outbreak in Grant, Iowa, and Lafayette Counties.

Children, elderly neighbors, and immunocompromised community members are counting on all of us to take this measles outbreak seriously.

MADISON, Wis. — The measles outbreak in southwest Wisconsin increased on Friday to 155 confirmed and 6 probable cases. The total number of cases in Iowa County remained at 62, Grant County has 20 confirmed, and Lafayette County has 73 confirmed, and 6 probable cases.

MADISON (WKOW) — Measles cases in southwestern Wisconsin have increased by 10 since Friday's report. The number of confirmed cases in that region went from 92 to 102, according to the Wisconsin Department of Health Services measles data dashboard.

The number of active cases in the latest measles outbreak continues to rise. Wisconsin now has 159 confirmed cases in 2026, with 157 active — all of which in Lafayette, Iowa and Grant counties. Of the 159 total confirmed cases,