Pennsylvania confirms measles-related deaths for first time in 35 years

The Pennsylvania Department of Health confirmed on Tuesday that two unvaccinated Lancaster County residents have died from measles-associated causes.

The fatalities mark the first measles-related deaths recorded in Pennsylvania in 35 years.

The state has confirmed 393 measles cases across 29 counties thus far in 2026. Health officials emphasized that receiving two doses of the MMR vaccine provides 97% lifetime protection against the virus.

Pennsylvania Secretary of Health Dr. Debra Bogen expressed sympathy for the families while highlighting the safety of immunization.

“My deepest sympathies are with the loved ones who are facing this unimaginable loss,” Bogen said. “Because measles was largely eliminated in the Commonwealth for more than three decades, people are not familiar with this disease and don’t fully understand the potential severity of the illness. We want to ensure every Pennsylvanian has the information they need to protect themselves, their loved ones and their communities. As a physician, I want to make sure that people understand that the MMR vaccine is safe and provides the best protection we have against measles.”

Measles can cause severe health complications, including pneumonia and brain swelling, with nearly 20% of infected individuals requiring hospitalization. Fatalities occur in one to three patients per 1,000 cases. The virus spreads through breathing, coughing or sneezing, remaining infectious in the air and on surfaces for up to 2 hours.

Early symptoms include fever, cough, runny nose and red, watery eyes, followed days later by a rash starting on the head and spreading downward. Symptoms typically appear seven to 21 days after exposure. State health officials advised anyone experiencing symptoms or suspecting exposure to contact a health care provider or call the Department of Health toll-free hotline at 877-PA-HEALTH (877-724-3258).

To protect family privacy, state officials stated no further identifying details about the deceased residents will be released.

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