Health officials are warning of two recent possible measles exposures in Philadelphia.
The Philadelphia Department of Public Health announced on Saturday that a possible measles exposure took place at Philadelphia International Airport in Terminals B and F and the connecting areas adjacent to terminals C, D and E. The health department said the exposure occurred between Sunday, Sept. 13, at 7:25 p.m. and Monday, Sept. 14, at 12:05 a.m.
The health department said the person traveling through PHL with measles didn’t leave the airport.
City health officials also reported a possible measles exposure at Children’s Hospital of Philadelphia between 9:30 a.m. and 4:15 p.m. on Friday, Sept. 11 at CHOP’s main building, including the neonatal intensive care unit and the cafeteria.
Health officials said the cases are not connected.
The possible Philadelphia exposures come as Pennsylvania is experiencing the worst measles outbreak in the country. State health officials last week confirmed two additional measles-associated deaths in Pennsylvania, bringing the total number in the state this year to four. According to the Pennsylvania Department of Health, both individuals were unvaccinated.
As of Friday, the state health department confirmed 767 measles cases in 38 of the state’s 67 counties, with 93 new cases reported in the last week. Of those cases, 150 involved hospitalizations. Vaccinated individuals accounted for just four of those 767 measles cases.
By comparison, there were 16 reported cases of measles in Pennsylvania in 2025, and six in 2024.
Amid Pennsylvania’s measles outbreak, Gov. Josh Shapiro has clashed publicly with US Health Secretary Robert F. Kennedy Jr. over vaccine misinformation and his decision to change childhood vaccine schedules—something many doctors, healthcare experts, and government officials disagree with.
The measles, mumps and rubella (MMR) vaccine has been administered to protect children and adults for decades. Two doses (one between 12 and 15 months of age, the second between ages 4 and 6) provide about 97% protection against measles, according to the American Medical Association.
While speaking last week at a conference of an anti-vaccine activist group he once chaired, Kennedy told the hundreds in attendance that they had a friend in President Donald Trump’s White House.
