One-fifth of states have active measles outbreaks as confirmed cases nationwide keep ticking up, according to the U.S. Centers for Disease Control and Prevention.

A fourth case of measles has been reported in Illinois for this year, the state tracking dashboard showed. The exact location was not yet known.

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

Well, the measles case count in Illinois just ticked up again. According to the Illinois Department of Public Health, there ...