Measles Deaths in Pennsylvania: Two Unvaccinated Residents Die as Outbreak Passes 390 Cases

For the first time in more than three decades, measles has killed someone in Pennsylvania. Two people, actually. The state Department of Health confirmed both measles deaths on Tuesday, August 25, 2026, and said each victim had been living in Lancaster County. Nobody else in the country has died of it this year, which makes these the first measles deaths in Pennsylvania in 35 years and the first anywhere in the United States in 2026.

Neither person had been vaccinated. Had either received the two-dose MMR course, which health officials put at roughly 97 percent effective for life, the infection would most likely never have taken hold. Within hours the story was everywhere, from AP News (apnews.com) and Reuters through to CNN and NBC Philadelphia, and by the next morning searches for phrases like “measles deaths pennsylvania” and “measles pennsylvania” had climbed close to 300 percent on Google Trends.

What the Pennsylvania Department of Health Confirmed

Dr. Debra Bogen, the state’s Secretary of Health, delivered the news at a media briefing on August 25, confirming two measles deaths among Lancaster County residents, neither of them vaccinated against measles.

That was more or less where the disclosure stopped. Asked about ages and identities, Bogen declined, pointing to medical privacy rules and the wishes of the families involved.

The silence has had consequences. Several news roundup sites have implied that children were among the dead, though nothing official supports that. Until the department says more, anyone writing about these Pennsylvania measles deaths should treat the ages as unknown.

“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.” – Dr. Debra Bogen, Pennsylvania Secretary of Health

The Pennsylvania Measles Outbreak by the Numbers

Both deaths landed in the middle of the worst measles outbreak Pennsylvania has seen in a generation. State tallies as of August 25, 2026 looked like this:

• 393 measles cases statewide, spanning 28 to 29 counties
• 185 infections in Lancaster County alone, nearly half the state total
• Roughly 37 diagnoses in neighboring Chester County
• 86 fresh cases logged during the previous week
• 70 residents hospitalized for measles complications
• About one in five Pennsylvania measles patients needing hospital care

Buried in that list is the figure that matters most: not a single person diagnosed with measles in Pennsylvania this year had been fully vaccinated. Every confirmed infection turned up in somebody unvaccinated or only partly protected. There isn’t much left to explain.

Only two states are running higher measles case counts than Pennsylvania for 2026.

Where the Outbreak Started and Why It Spread

Tracing the outbreak backward leads to around April 2026 in Lancaster County. Health officials were chasing a possible exposure in Lebanon County by May 6, then another in Lancaster County on May 29. It kept widening through the summer, and by the time cases had turned up statewide, a separate cluster had surfaced out west in Erie County.

Most infections have hit Pennsylvania’s plain community, the traditional Anabaptist groups, Amish and Mennonite families among them, settled thickly across Lancaster and Chester counties, where vaccine uptake has trailed the state average for years. The 2025 outbreak took the same shape through Texas and New Mexico, killing two children and one adult.

None of this would matter much if measles behaved like an ordinary respiratory bug, but it doesn’t. One infected person typically hands it to 12 to 18 people who lack immunity, and the virus hangs in a room’s air for up to two hours after that person walks out. Worse still, somebody is shedding it for about four days before the rash gives them away. Where enough neighbors lack cover, a single imported case is all it takes.

The Vaccination Gap Behind the Pennsylvania Measles Deaths

Holding measles off takes roughly 95 percent two-dose MMR coverage across a community. Slip beneath that mark and herd immunity stops working, letting the virus move at will. Pennsylvania has slipped, and Lancaster County has fallen a good deal further.

• Pennsylvania kindergarten MMR coverage measured 95.2 percent in 2019-20. Today it sits at 92.4 percent.
• Lancaster County child coverage reached 95.5 percent back in 2017. By 2025 it had slid to 87.6 percent.
• Nationwide, 4.2 percent of kindergartners, roughly 155,000 children, held at least one vaccine exemption during 2025-26, up from 3.6 percent a year earlier, per CDC.

Eight years of drift wiped out nearly eight percentage points of coverage in Lancaster County, and the virus moved straight into the opening. Governor Josh Shapiro blamed false claims circulating online, which he said “scares a parent who’s just trying to do the right thing by their kids.”

Measles Symptoms: What to Watch For

Because measles all but vanished from Pennsylvania for a generation, plenty of parents, and a fair number of younger doctors, have never laid eyes on a case. Catching measles symptoms early matters for the patient, and for everybody that patient might otherwise infect.

Signs usually surface somewhere between 7 and 21 days after exposure, and they tend to arrive in a set order:

• High fever leads, sometimes spiking above 104 degrees
• Cough, runny nose and red, watery eyes follow, the classic “three C’s” of measles
• Koplik spots appear next, tiny white flecks inside the mouth, a day or two ahead of the rash
• A blotchy red rash begins at the hairline and face, then travels downward

Somebody with measles stays contagious from roughly four days before the rash appears until four days after, which is why isolation matters across that stretch.

What does the killing, though, is the complications. Pneumonia accounts for most measles deaths in children, encephalitis or brain swelling comes next, and ear infections can leave a child deaf for good. More rarely, a brain condition called SSPE surfaces years after apparent recovery, and that one is always fatal. Measles also wipes out whatever immune memory the body had built up, leaving survivors exposed to unrelated infections long afterward.

Historically the disease kills one to three people per thousand it infects. Set against 393 confirmed cases in Pennsylvania, two measles deaths sits inside that band, which is the point health officials keep returning to.

A Record Year for Measles Across the Country

These Pennsylvania measles deaths didn’t happen in a vacuum. The country is grinding through its worst measles year in over three decades. CDC counts had reached 2,777 confirmed cases nationwide by August 20, 2026, already past the 2,289 logged across all of 2025, with four months still to run. No year since 1991 has been worse.

Nationally, 94 percent of this year’s patients were unvaccinated or of unknown status. Children five and under account for 19 percent of cases, kids and teenagers for about two thirds. Add the three deaths from 2025, two children in Texas and one adult in New Mexico, and the country has buried five measles victims in two years.

There’s a further cost that gets less attention. The United States declared measles eliminated in 2000, and losing that designation takes only one chain of spread running unbroken past twelve months. Outbreak activity hasn’t paused since early 2025. In November 2026 the Pan American Health Organization reviews whether it still stands.

How Pennsylvania Is Responding

State and county teams moved quickly once the scale became clear. Pop-up MMR clinics have opened across Lancaster County and elsewhere in the Commonwealth, clinicians received a health alert designated PA-HAN 733, and a public hotline went live at 1-877-PA-HEALTH (1-877-724-3258).

There are signs it’s working. Some 35,000 MMR doses went into arms across Pennsylvania last month, well above a normal baseline nearer 25,000.

Medical leaders haven’t been especially diplomatic about it. Dr. Andrew Racine, who heads the American Academy of Pediatrics, called it “heartbreaking to witness deaths from a disease that is preventable.” Dr. Paul Offit, of the Vaccine Education Center at Children’s Hospital of Philadelphia, said flatly that he could not believe “we’ve had two deaths in this Commonwealth from something that is completely preventable.”

What Pennsylvania Residents Should Do Now

The guidance itself isn’t complicated. MMR comes in two doses, the first at 12 to 15 months, the second between ages four and six. Together they run to about 97 percent protection for life, while one dose alone gets you roughly 93 percent.

• Dig out your family’s vaccine records, particularly for any children under six.
• Adults who aren’t sure of their status can get vaccinated or ask for an immunity check.
• If you suspect measles, phone ahead before turning up at a clinic or ER, so staff can isolate you rather than expose a waiting room.
• If you’re unvaccinated and think you’ve been exposed, call your doctor straight away. An MMR dose within 72 hours can prevent or soften the illness.

The Bottom Line

Two residents of Lancaster County died of something a vaccine prevents 97 percent of the time. Theirs were the first measles deaths in Pennsylvania in 35 years and the first anywhere in the United States during 2026, arriving after eight years of steadily falling vaccination rates in their own county.

This Pennsylvania measles outbreak isn’t finished either. With 86 new cases inside a single week, and that elimination review waiting in November, the figures above will be out of date before long. The math underneath them won’t move. Measles comes back wherever immunity drops below about 95 percent.

Sources

• Pennsylvania Department of Health – official press release, August 25, 2026
• AP News (apnews.com) – Two people in Pennsylvania die from measles
• Reuters – Pennsylvania reports two deaths from measles
• CIDRAP, University of Minnesota – Measles-related deaths in Pennsylvania mark first 2 US fatalities this year
• WHYY – Two unvaccinated Pennsylvanians die after contracting measles as cases grow
• CBS Philadelphia – PA health department reports 2 measles deaths in Lancaster County
• NBC News – Two unvaccinated people die of measles in Pennsylvania outbreak
• CNN – Two unvaccinated people in Pennsylvania are first measles-related deaths in US this year
• Newsweek – Map shows where measles cases are spiking in Pennsylvania
• NBC Philadelphia – First measles deaths reported in PA for first time in 35 years
• Pennsylvania Capital-Star – Pennsylvania reports nation’s first confirmed measles-related deaths in 2026
• CDC – Measles Cases and Outbreaks
• Johns Hopkins Bloomberg School of Public Health – 2026 US measles cases surpass 2025 level
• Lancaster County, PA – Official measles information page