Philadelphia's Measles Outbreak Expands

The Philadelphia Health Department reported on January 9, 2024, two additional confirmed measles cases, increasing the total number of confirmed measles cases to eight.

In response, the City is working to identify everyone who may have been exposed, checking their vaccine status, warning them that they may have been exposed, and issuing quarantine and exclusion recommendations where necessary.

Philadelphia has expanded the number of potential measles virus exposure locations and dates to account for what has been learned during the ongoing case investigation. 

The Health Department’s measles blog post contains the complete list of locations.

The Health Department continues to offer the measles, mumps, and rubella (MMR) vaccines for free at City Health Centers. And the City is offering walk-in MMR vaccinations at three City health centers for a limited time.

Philadelphia and Jefferson Health initially notified the public of this health risk on December 23, 2023.