Measles alert issued for anyone who traveled through Chicago O'Hare airport

A measles alert was issued Monday, four days after a passenger diagnosed with the highly contagious virus traveled through the Chicago O'Hare International Airport.  According to the Illinois Department of Health, somewhere between the hours of 6:30 a.m. and 1 p.m. on January 10, "a passenger on an international flight with a confirmed case of measles arrived in Terminal 5." That person then left the airport on a domestic flight from Terminal 1. The statement warned that the passenger "was infectious" that day and "may have traveled to other parts of the airport." The health department says if you were infected you could develop symptoms as late as January 31, 2018.