If you have traveled recently through the Philadelphia International Airport you may have been exposed to measles. Secretary of Health Dr. Rachel Levine and Philadelphia Department of Public Health Commissioner Dr. Thomas Farley Friday alerted residents who visited the Philadelphia International Airport on October 2 and on October 3 they may have been exposed to measles. The potential exposures occurred at the following locations and times: Wednesday, Oct. 2, Terminal F from 6:30 p.m. to 12:00 a.m. Thursday, Oct. 3, Terminal F from 4:00 p.m. to 12:00 a.m. Thursday, Oct. 3, Terminal A from 8:30 p.m. to 11:30 p.m. Thursday, Oct. 3, Terminal A/B shuttle bus from 8:30 p.m. to 11:30 p.m. "An individual with a suspected case of measles was present in the Philadelphia International Airport on two days and may have exposed many individuals," Secretary Levine said. "The Department of Health is working with the county and municipal health departments to notify Pennsylvanians who were on flights with the suspected case, but other individuals may have been exposed to the airport during the identified times. To date, 15 cases of measles have been confirmed in Pennsylvania in 2019. More than 1,200 cases have been reported in the United States in 2019. This is the greatest number of cases reported in the U.S. since 1992. Measles is a highly contagious but vaccine-preventable disease that spreads through coughing, sneezing or other contacts with the mucus or saliva of an infected person. Symptoms typically appear one to three weeks after exposure and include rash; high fever; cough; and red, watery eyes. According to Centers for Disease Prevention and Control (CDC) those most at-risk are: Infants less than one year of age who are too young to have received the measles, mumps and rubella (MMR) vaccine; Individuals who refused vaccination; and Individuals from parts of the world where there is low vaccination coverage or circulating measles. Additionally, even if you were vaccinated, you may still be at risk if you were vaccinated with an inactivated vaccine, which was used from 1963 through 1967, and have not been revaccinated; or you were born after 1957 and have only received one dose of MMR vaccine.