Montgomery County officials have released additional details about the region’s first 2025 confirmed case of measles, including the places the unvaccinated child visited before their emergency room diagnosis.

A confirmed case of measles in an unvaccinated child is under investigation by Montgomery County health officials.

Health officials in Montgomery County, Pennsylvania, are investigating one confirmed case of measles in an unvaccinated child, county officials said Sunday. Montgomery County Office of Public Health investigators are working with the child's guardians and health care providers for contact tracing and notifying anyone who might have been exposed to the virus,

In the last year, several cases of measles have been identified in the Philadelphia region; last winter, a measles outbreak sickened nine people and sent six to the hospital in Philadelphia.

Pennsylvania has reported its first confirmed measles case of the year in an unvaccinated child from Montgomery County.