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

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

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

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

Cases of the highly infectious disease measles are popping up in cities and states across the country, including in Illinois, ...

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

Two cases of measles have been reported in Cook County, according to the Chicago Department of Public Health and Cook County ...

People might have been exposed to the virus April 21-28 in Irving Park, at O’Hare Airport and in three southwest suburbs, ...

Most of the cases have been concentrated in West Texas, where a months-long outbreak has spread to nearby states and even neighboring Mexico. No cases of measles have been reported in ...

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

Illinois’ first measles case of the year was in an unvaccinated adult in downstate Marion, according to the state health department.

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