New analysis of data from the Illinois Board of Education found less than half of Chicago Public Schools had herd immunity ...

New analysis found that less than half of Chicago Public Schools have herd immunity against the measles as of 2025. More than ...

A Sun-Times analysis of state data found the rate of vaccinations has dropped sharply from the rate in 2019, when 90% of ...

The U.S. surpassed 1,000 measles cases Friday, even as Texas posted one of its lowest counts of newly confirmed cases since ...

Two measles cases have been confirmed in Cook County amid the latest 2025 outbreak, public health officials announced ...

A confirmed case of measles found in the Chicago O'Hare airport has put Tippecanoe County health officials on alert ahead of ...

The U.S. has surpassed 1,000 measles cases for the first time in five years, according to new data from the CDC published Friday.

As measles cases are on the rise in the United States, Chicago has reported the city's first case of the year.

The Illinois Department of Public Health (IDPH) is sounding the alarm on a potential measles exposure at Chicago O’Hare ...

The Chicago Department of Public Health and Cook County Department of Public Health have identified two confirmed cases of measles. These are the first two cases in Cook County this year. One case was ...

The Cook County cases follow the first case of measles this year in Illinois in an unvaccinated adult in Marion, reported ...

One case was detected in a Chicago resident who recently traveled through O'Hare Airport. The other case was reported in a ...