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.

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

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

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

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

CHICAGO (WLS) -- A sixth case of measles has been reported in Illinois for this year. Four of the cases were reported in ...

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

Cook County reports first measles cases of 2025, with two cases in Chicago and suburbs. Vaccination is the best way to ...

The cases are the first to be diagnosed in Cook County since March 8, 2024, when an outbreak of measles that began in a ...

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

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