Major US airport on red alert as passenger is diagnosed with world’s most infectious disease

An infected individual spent time in Terminal 1 on April 22-23 between 10am and 8pm, potentially exposing hundreds to the highly contagious disease.

The patient, who had received one dose of the MMR vaccine, developed a rash on April 25 and later tested positive for measles. They are currently isolating at home while health authorities investigate the case.

A second measles case emerged days later in the same Illinois county.