The Illinois Department of Public Health (IDPH) is sounding the alarm on a potential measles exposure at Chicago O’Hare International Airport. Here's what you need to know.

The Chicago Department of Public Health is focusing increasing education about vaccines for children in pre-K settings.

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.

Measles cases surge in the U.S., with outbreaks across 31 jurisdictions. Experts warn of the virus's contagiousness and call for vaccination.

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

Measles cases have shown up in different parts of Illinois. While the outbreaks have been smaller than what some states are experiencing, many residents — including parents — are worried about the risks.

Measles cases in the U.S. have surpassed 900 as outbreaks continue to spread across the county, according to new CDC data published Friday.

In the U.S., death from neurologic or respiratory complications of measles occurs in one to three of every 1,000 cases, University of Chicago Medicine reports. There’s no specific treatment for ...