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

The U.S. saw a small increase in measles cases this week, an indicator that outbreaks are slowing down, though exposures at a ...

It was not immediately clear where in Illinois the fourth case was reported, or what condition the patient is in.

What's happening with measles in the U.S ... We'll catch you up on the news you need to know with the Chicago Catch-Up newsletter. “On average, one infected person may infect about 15 other ...

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

As of May 8, the U.S. has logged more more than 1,000 measles cases across 31 states — compared to 285 cases in all of 2024.

State health officials say -no- measles cases have been reported in Iowa so far this year, but more than 900 cases are ...

Millions of Americans live with immune issues and depend on herd immunity to protect them from contagious diseases like ...

Americans worry about the Trump administration's ability to contain an ongoing outbreak of measles, while the vast majority ...

Measles is highly contagious among those who are unvaccinated and may have severe health consequences in children under age 5 years.

More than 1,000 measles cases have been confirmed across the U.S. this year, with major outbreaks in Texas, New Mexico, Kansas and eight other states.