Full Breakdown
Pennsylvania Measles Outbreak Leads to First Deaths in 35 Years
8/29/2026, 12:16:41 AM
Outbreak Overview and Fatalities
In spring 2026 a measles outbreak began in southeastern Lancaster County and spread to 28 Pennsylvania counties. State health officials confirmed two “measles-associated” deaths among unvaccinated Lancaster residents—the first measles deaths in the Commonwealth in 35 years and the first reported in the United States this year. Hospitalizations have risen to roughly one in six confirmed cases.
Timeline of Key Developments
- April 2026 – Outbreak identified in Lancaster County.
- August 25 2026 – Two measles-associated deaths announced.
- August 28 2026 – Confirmed cases rose to 460 statewide, an increase of 36 from two days earlier.
Vaccination Gaps and Spread
Pennsylvania’s kindergarten MMR coverage fell to 93.2 % for the 2025-2026 school year, down from 93.7 % the prior year. In Lancaster County the rate dropped to 87.6 %, below the 95 % herd-immunity threshold. As of late August the state reported between 393 and 460 laboratory-confirmed cases, with Lancaster accounting for about half of all infections. Nationwide, the CDC recorded 2,777 measles cases as of August 20 2026, the highest annual total since 1991.
Official Statements & Responses
Pennsylvania Secretary of Health Dr. She clarified that “measles-associated” denotes laboratory or epidemiologic evidence of infection, even when a coroner does not list measles as the immediate cause of death.
Governor Josh Shapiro warned that “this is a serious and a growing problem across the country and right here in our commonwealth,” blaming misinformation for declining vaccination rates and urging residents to get vaccinated.
U.S. Health and Human Services Secretary Robert F. Kennedy Jr. said “We’re trying to get information about those two casualties” and suggested the announcements might have been premature.
The CDC said it is working with state and local officials to verify the circumstances of the deaths and to support the outbreak response.
Criticism & Opposition
Infectious-disease specialist Dr. Amesh Adalja criticized the state’s limited disclosure, saying “I think they lost credibility by how they handled it,” and warned that the information vacuum fuels anti-vaccine activism.
Conflicting Reports & Gaps
Lancaster County Coroner Dr. Stephen Diamantoni reported no record of any measles deaths, describing the infant’s death as a “traumatic rupture of the spleen” with measles antibodies present but not deemed the cause. State officials maintain that both decedents tested positive for measles and that the classification follows standard public-health terminology. Secretary Kennedy has suggested the deaths could have been “altogether fabricated” by a gubernatorial aide, a claim the health department has denied. The CDC’s ongoing review has highlighted these discrepancies without yet reaching a conclusion.
Verbatim Quotes
- “The MMR vaccine provides the most effective protection against measles and helps prevent its spread,” — U.S. Department
- “This is a serious and a growing problem across the country and right here in our commonwealth,” — Gov. Josh Shapiro
- “We're trying to get information about those two casualties,” — Robert F. Kennedy, health secretary
- “I think they lost credibility by how they handled it,” — Dr. Amesh Adalja
What’s Next
The Pan American Health Organization will meet in November to consider whether the United States has lost its measles-elimination status. Pennsylvania plans additional pop-up vaccination clinics in high-risk counties throughout the fall.
