Health officials in Montgomery County are investigating and contact tracing after a child was diagnosed with measles.

The first case of measles of measles for 2025 has been confirmed and though there is no sign of measles in Lehigh Valley, the local health networks are preparing for the worst.

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.

A patient who came to a hospital emergency room in Montgomery County is Pennsylvania's first confirmed measles case this year amid a national surge of the highly contagious virus, according to health officials.

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

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.

Montgomery County health officials continue contact tracing efforts after an unvaccinated Montgomery County baby contracted a case of measles over the weekend.

The Montgomery County Department of Health and Human Services' Office of Public Health is investigating a confirmed case of measles in an unvaccinated Montgomery County child.

The unvaccinated child visited the Children's Hospital of Philadelphia's King of Prussia campus emergency room on Feb. 26, the county's Department of Health said.