Measles Outbreak in Pennsylvania
The Pennsylvania Department of Health (DoH) reported on Friday that there had been 55 new measles cases in the state since Wednesday. Officials are actively working to manage an outbreak that has affected numerous counties.
According to a news release from the DoH, there have been 890 confirmed cases of measles across 39 counties this year. The outbreak has also led to 173 hospitalizations and, distressingly, four deaths associated with measles.
Health officials noted that fewer than 1% of those who contracted measles had been vaccinated. Additionally, state data indicates that 31% of the cases involve individuals under the age of 18.
In the update, the DoH stated it is “proactively working with residents, community organizations, and healthcare providers to combat the measles outbreak through access to fact-based information and the MMR vaccine.”
This announcement came on the heels of remarks from Robert F. Kennedy Jr., the health secretary under the Trump administration, who raised doubts on social media about the reported deaths, suggesting they may have been politically motivated fabrications.
In late August, the new director of the CDC ordered that two measles-related deaths from Pennsylvania would not be included in the national count while the agency was seeking further information about those cases.
As for the outbreak’s statistics, Lancaster County in Pennsylvania has recorded the highest number of cases this year, tallying 359 positive cases, based on state data.
Since the outbreak began in late April, health officials have administered over 5,300 MMR vaccinations at various pop-up clinics in affected areas. They also mentioned that more clinics are planned in the weeks ahead, depending on community demand.
So far, staff members at state health centers have given out more than 7,900 doses of the MMR vaccine this year, reflecting an increased interest from residents.
The DoH emphasized that the “best protection against measles remains getting fully vaccinated,” highlighting that the MMR vaccine provides a 97% chance of lifelong immunity.
Measles is a particularly contagious virus that can lead to significant health issues. Although deaths from measles are rare, they occur in about one to three individuals per 1,000 cases.
After being declared eliminated from the U.S. in 2000, the virus has made a comeback in communities with low vaccination rates.
According to the CDC, measles spreads primarily through respiratory droplets from coughing and sneezing and can survive in the air for up to two hours after an infected person has left the area.
Symptoms typically appear seven to 14 days following infection, including high fever, cough, runny nose, and red, watery eyes, followed by a characteristic rash.
The CDC recommends that two doses of the MMR vaccine offer the best protection against measles.
As of September 24, there have been over 3,659 confirmed measles cases reported across the U.S. this year, compared to a total of 2,289 cases throughout 2025.
