Travelers who went through Philadelphia International Airport earlier this month could have been exposed to measles, according to health officials.

“An individual with a suspected case of measles was present in the Philadelphia International Airport on two days and may have exposed many individuals,” Pennsylvania Secretary of Health Dr. Rachel Levine Levine said in a statement published by NJ.com.

The potential exposures occurred at the following locations and times:

Oct. 2, Terminal F from 6:30 PM to midnight
Oct. 3, Terminal F from 4:00 PM to midnight
Oct. 3, Terminal A from 8:30 PM to 11:30 PM
Oct. 3, Terminal A/B shuttle bus from 8:30 to 11:30 PM.

Measles symptoms can include rash, high fever, cough, runny nose and red, watery eyes.