Pennsylvania’s health department has confirmed four measles-associated deaths in the outbreak now running through Lancaster County and thirty-seven other counties.
The Centers for Disease Control and Prevention’s national measles page does not list any of them. In the column where those deaths would appear, the agency has placed an asterisk and a note saying available information does not establish whether measles caused or contributed to them. The practical consequence has gone almost entirely unstated in the coverage of this outbreak: the national measles death toll that news organizations, including this one, have been citing all year is no longer a medical count. It is the output of a dispute, and the losing side is the state doing the counting.
Where the Outbreak Actually Stands
This is the largest measles outbreak in the United States right now and Pennsylvania’s largest in more than three decades. The state had confirmed 693 cases across 38 counties as of mid-September, with 133 hospitalizations. The curve is what alarms epidemiologists: 393 cases by August 25, 540 by September 3, 624 by September 9, 693 by September 14. That is a case count that roughly doubled inside three weeks.
Lancaster County is the center of it, with 324 cases, followed by Mifflin County with 93 and Chester County with 72. The county is home to the largest Mennonite community in the country and one of the largest Amish populations, and vaccination coverage there sits below the 95 percent threshold that stops measles from moving. The Pittsburgh Post-Gazette’s reporting from inside the community documented how the outbreak spread and why containment has been so difficult. Nearly every confirmed case has been in someone unvaccinated.
The four people who died:
- Two infants, both too young to have received a first dose
- An 18-year-old, unvaccinated
- A 40-year-old woman, unvaccinated, whose death a county coroner attributed to measles complications on September 13
How the Count Split in Two
The sequence matters, because it shows the disagreement widening rather than resolving.
Pennsylvania announced its first two measles-related deaths in late August. CDC political leadership publicly questioned the state’s determinations and the deaths did not go onto the federal dashboard. The Philadelphia Inquirer documented the omission persisting through the agency’s weekly updates in early September, and STAT reported on the internal fight over whether to publish them. The Center for Infectious Disease Research and Policy at the University of Minnesota had already noted that these were the first measles-related deaths recorded in the country this year, which is precisely why the national number mattered.
Then came the coroner’s finding on September 13 and two more deaths announced on September 15. CDC Director Erica Schwartz ordered the deaths kept out of the agency’s weekly measles update. NBC News has described the result as an escalating standoff between the CDC and Pennsylvania, and the word is not an exaggeration. A federal health agency publicly refusing to accept a state’s and a county coroner’s cause-of-death determinations is close to unprecedented in American public health.
The technical dispute is narrower than it sounds and that is what makes the CDC’s position hard to defend. The term Pennsylvania is using, measles-associated death, is not a euphemism invented for this outbreak. Matthew Ferrari, the Penn State epidemiologist, has pointed out that it is a long-standing classification used by both the World Health Organization and the CDC itself. The agency is not applying a stricter standard than the states. It is applying a different standard than it used last year.
The Hostage Is the Outbreak Response
On September 17, Pennsylvania sent a letter to the CDC requesting an Epi-Aid, the mechanism by which a state asks for federal epidemiologists on the ground during an emergency. The state attached a condition: it would withdraw the request if the CDC did not recognize the four deaths. Health Secretary Debra Bogen’s stated reasoning was that the agency’s refusal to publicly acknowledge the deaths undermines the state’s response, which is true, because public health messaging in a vaccine-hesitant community depends on the federal government and the state saying the same thing.
The response from the Department of Health and Human Services was that the CDC will not allow Governor Josh Shapiro to politicize the process and will not submit to political blackmail that conditions critical public health assistance. Al Jazeera reported the exchange in full.
So the current state of American measles policy is that a state with the country’s worst outbreak and a federal agency with the expertise to help are trading the deployment of that expertise against a line item on a webpage, while cases in Lancaster County keep climbing.
Our Position
The CDC created this and the CDC can end it. An agency that departs from its own long-standing case definition, in the middle of the outbreak that definition exists to measure, is not exercising scientific caution. Caution would be publishing the state’s figure with the agency’s stated reservation attached, which is what an asterisk is normally for. Suppressing the number entirely while the reservations stay vague is a communications decision, and the only thing it reliably accomplishes is making the vaccine look less necessary than it is in the one community where that message will get people killed. Erica Schwartz gave the order and owns the outcome.
Pennsylvania’s move deserves its own criticism, and we are not going to pretend otherwise. Conditioning a request for outbreak assistance on a data concession is leverage, and the people it puts at risk are residents of Lancaster and Mifflin counties who have no stake in a federal-state argument about nomenclature. Bogen and Shapiro should send the Epi-Aid request unconditionally and fight the death-count question separately and loudly. Being right about the science does not make it wise to bet an outbreak response on winning the argument.
But the asymmetry is real and it should be said plainly. One party here is a state health department reporting deaths its coroners certified. The other is a federal agency that has decided, after the fact, that those certifications do not count, and that has the power to withhold help while it says so. Those are not equivalent positions and no amount of both-sidesing the standoff makes them equivalent.
What Happens Next
Watch the CDC’s weekly measles update. If the asterisk is still there after another death is certified, the agency has effectively established that it will no longer publish state-reported measles mortality, and every national figure downstream of it becomes unusable for the rest of this outbreak. Watch, too, whether Pennsylvania actually withdraws the Epi-Aid request or quietly lets it stand. The federal posture on vaccines has been drifting for over a year now, from Robert F. Kennedy Jr.’s congressional testimony on outbreaks and vaccine rollbacks to the gap this summer between what the CDC’s own leadership was telling parents and what the White House was drafting. A fight over four death certificates is where that drift stops being abstract.