Wednesday's paper reported Pennsylvania's first two measles deaths in 35 years as a clash between Gov. Josh Shapiro and Health and Human Services Secretary Robert F. Kennedy Jr. — a two-sided political fight over vaccine messaging. New reporting from CIDRAP shows that frame was incomplete. What actually unfolded over the following day was a three-way dispute in which the CDC publicly contradicted Pennsylvania's own health department, and Pennsylvania publicly contradicted the CDC right back.

The new information at the center of the dispute concerns one of the two deaths specifically. The Lancaster County coroner told the Philadelphia Inquirer that a newborn died shortly after birth from a laceration of the spleen, and that a postmortem test of the baby's lung tissue showed a measles infection acquired before birth. [1] Pennsylvania's Department of Health had previously disclosed only that both victims were unvaccinated Lancaster County residents, citing patient privacy, and using the term "measles-associated" to describe deaths where laboratory or epidemiologic evidence of measles is present even when a coroner has not determined measles to be the immediate cause of death. [1]

That additional detail is what Kennedy seized on. In a post on X, Kennedy alleged the deaths were fabricated and accused Shapiro of fearmongering and "the weaponization of infectious disease fears for political gain." [2] The CDC followed with its own post the same afternoon, stating it is "working to determine what actually occurred" and directly disputing Pennsylvania's cooperation: "These discrepancies raise important questions, particularly because the Governor's Office has not provided CDC with information relevant to the outbreak and has declined our offers of assistance." [2] Pennsylvania's health secretary, Dr. Debra Bogen, had posted the day before that her staff meets regularly with the CDC — "as recently as that afternoon" — to discuss the outbreak, adding: "I deeply appreciate the supportive working relationship between the PA DOH and CDC professional staff." [2] The two federal and state health agencies are now on the public record directly contradicting each other about whether basic coordination between them is even taking place, independent of whatever Kennedy alleged about the deaths themselves.

Medical experts CIDRAP consulted split their criticism across all three parties rather than taking a side. Amesh Adalja, an infectious disease physician at the Johns Hopkins Center for Health Security, said measles does not typically rupture the spleen, though it's possible the virus played a role by infecting the organ in utero and making it more fragile during delivery — while cautioning that the academic literature on this specific mechanism is sparse. [1] Adalja was critical of Pennsylvania's initial disclosure as much as Kennedy's response to it: the state's original announcement gave no indication either death might have involved a contributing cause beyond measles, which Adalja called "an unforced error" that "provided ammunition" for Kennedy's fabrication claim. "Either you believe measles caused these deaths and you show your evidence, or you do not yet know and you publish the timeline on which you will," Adalja said. [1] Paul Offit, director of the Vaccine Education Center at Children's Hospital of Philadelphia, told the Inquirer the coroner's additional detail didn't add much context, but that state health officials had told him "these patients would not have died were it not for measles." [1] Jess Steier of Unbiased Science was more direct about Kennedy specifically: "It baffles me that Secretary Kennedy chose this moment to do anything other than underscore the critical importance of MMR vaccination in the name of public health, to prevent further tragedies." [1]

Wednesday's coverage treated the elimination-status question — whether the U.S. loses its formal measles-elimination designation at a November international review — as the story underneath the political clash. That underlying trend has not improved: CDC data show non-medical vaccine exemptions in Pennsylvania have tripled since the 2016-17 school year, and Adalja noted the new K-12 school year is starting now, bringing large numbers of unvaccinated children together at exactly the moment measles remains airborne-transmissible for up to two hours in a room after an infected person leaves it. [1] What Thursday's reporting adds is that the political dispute obscuring that trend is not simply Democrat versus Republican, or governor versus secretary. It is now a federal health agency and a state health department publicly disputing whether they are even talking to each other, while the disease both claim to be managing keeps spreading in the gap between their statements.

-- NORA WHITFIELD, Chicago