A 40-year-old woman from Jefferson County, Pennsylvania, died Saturday from complications associated with measles, county Coroner Greg Furlong confirmed. It is the third measles-related death reported in the state this year and the first outside Lancaster County.
Furlong said the woman was unvaccinated and developed symptoms after known exposures. He told The Philadelphia Inquirer that her death certificate lists acute on chronic hypoxemic and hypercapnic respiratory failure caused by suspected measles, chronic obstructive pulmonary disease and asthma, with supplemental oxygen dependence as a contributing condition.
One detail matters for how this case is counted. Family members told the coroner the woman declined testing for measles before she died, though she had been exposed to several people with confirmed and unconfirmed cases and developed a rash and fever several days before her death. Because there is no positive laboratory test, the death does not currently meet the state's definition of a measles-associated death, which requires clinical evidence of infection plus a positive lab result. The Pennsylvania Department of Health said it is reviewing the case and has not issued its own determination.
Adults with Chronic Lung Disease Are Part of the Toll
Measles is often filed away as a childhood illness. Jefferson County officials went out of their way to correct that framing. Chief Deputy Coroner Jason Stiver said in the coroner's office notice that "many people associate measles with a childhood illness, but it can lead to severe complications in individuals of any age."
Pneumonia is the most common cause of death from measles, and people who already have reduced lung capacity have less margin when a viral infection settles into the chest. Dr. Paul Offit, who directs the Vaccine Education Center at Children's Hospital of Philadelphia, told the Inquirer that a patient with both COPD and asthma was "particularly compromised" and could well die from the virus.
Measles spreads through the air and can linger in a room for up to two hours after an infected person leaves. It can infect as many as nine out of 10 unvaccinated people who are exposed. Roughly one in five people who contract measles is hospitalized, and the state health department puts the death rate at one to three patients per 1,000 cases.
Lancaster Leads, but the Map Now Covers 37 Counties
The Pennsylvania Department of Health's statewide measles update reported 676 confirmed cases across 37 of the state's 67 counties as of Sept. 11, including 52 confirmed in the two days since Sept. 9. A total of 124 people have been hospitalized. Lancaster County remains the center of the outbreak. Jefferson County, where Saturday's death occurred, had reported 26 cases through Sept. 11. For scale, Pennsylvania recorded 16 measles cases in all of 2025.
The state also disclosed that four people with confirmed measles, three adults and one child in Centre, Jefferson, Lancaster and Lycoming counties, had been appropriately vaccinated for their ages. None were hospitalized. That group represents less than one percent of the state total. Two MMR doses are about 97 percent effective, and the department said breakthrough cases are expected in an outbreak this large. Nationally, about 3 percent of this year's cases have occurred in fully vaccinated people.
The CDC's national measles case count stood at 3,294 confirmed cases as of Sept. 10, the largest U.S. total since 1991. Ninety-five percent of those cases are linked to an outbreak.
State health officials have administered nearly 4,300 MMR doses at 130 pop-up clinics in affected communities since the outbreak began in late April, part of more than 6,300 doses given at state health centers this year. Providers across the state typically administer about 25,000 MMR doses in a month. In August, they gave more than 46,000.
Checking a Household's Vaccine Records This Week
Families in the 37 affected counties can take a few concrete steps. Confirm that everyone in the household has two documented MMR doses, and ask a pediatrician about an early dose at 6 months for infants living in or traveling to outbreak counties. Adults who are unsure of their status can ask a clinician whether another dose or a titer test makes sense.
MMR vaccine is available through health care providers, county and municipal health departments, state health centers, federally qualified health centers, and the Vaccines for Children program. The state runs a toll-free hotline at 877-PA-HEALTH and maintains a measles dashboard with county-level counts.
Symptoms usually start seven to 21 days after exposure, beginning with fever, cough, runny nose, and red, watery eyes, followed by a rash that starts on the head and spreads downward. Anyone with those symptoms should call a provider before walking into a waiting room so the office can prepare an isolation room. People with COPD, asthma or weakened immune systems, and infants too young for vaccination, should seek guidance promptly rather than waiting to see whether symptoms improve.
The gap between state and federal reporting remains unresolved. The CDC has not listed any measles deaths for 2026, noting that the National Center for Health Statistics has no 2026 death records with measles as the underlying cause and that it is working with the Council of State and Territorial Epidemiologists on a standardized case definition. CDC Director Dr. Erica Schwartz said in a statement shared with CNN that the agency had not been notified by Pennsylvania officials of this death and that the state has not requested a CDC Epi-Aid, which would deploy federal epidemiologists. State officials have said they provided the required epidemiological data on the two earlier deaths.
Key Questions Answered
What happened? The Jefferson County Coroner's Office reported that a 40-year-old unvaccinated woman died Saturday, Sept. 12, from complications associated with measles. It is the third measles-related death reported in Pennsylvania in 2026.
Has the state confirmed the cause? No. The Pennsylvania Department of Health said it is reviewing the case. The woman was never tested, so her death certificate lists suspected measles alongside COPD and asthma.
How large is the outbreak? The state reported 676 confirmed cases across 37 counties and 124 hospitalizations as of Sept. 11. Lancaster County remains the center of the outbreak.
Who faces the highest risk? Unvaccinated people of any age, infants under 12 months, pregnant people, adults with chronic lung disease, and anyone with a weakened immune system.
Do vaccinated people get measles? Rarely. Four of Pennsylvania's 676 cases were in fully vaccinated people, and none were hospitalized. Two MMR doses are about 97 percent effective.
Where can families get vaccinated? Through health care providers, county and municipal health departments, state health centers, federally qualified health centers, and the Vaccines for Children program. The state hotline is 877-PA-HEALTH.
What should someone do if exposed? Call a clinician or the state hotline before visiting a waiting room, and seek urgent care for difficulty breathing or rapid worsening. This article is general information and is not a diagnosis.
