TARGETING SCIENCEKennedy’s HHS Sent Congress ‘Junk Science’ To Defend Vaccine Changes, Experts Say

By Jackie Fortiér

Published 17 June 2025

A document the Department of Health and Human Services sent to lawmakers to support Secretary Robert F. Kennedy Jr.’s decision to change U.S. policy on covid vaccines cites scientific studies that are unpublished or under dispute and mischaracterizes others. One health expert called the document “willful medical disinformation,” adding: “It is so far out of left field that I find it insulting to our members of Congress that they would actually give them something like this.”

A document the Department of Health and Human Services sent to lawmakers to support Secretary Robert F. Kennedy Jr.’s decision to change U.S. policy on covid vaccines cites scientific studies that are unpublished or under dispute and mischaracterizes others.

One health expert called the document “willful medical disinformation” about the safety of covid vaccines for children and pregnant women.

“It is so far out of left field that I find it insulting to our members of Congress that they would actually give them something like this. Congress members are relying on these agencies to provide them with valid information, and it’s just not there,” said Mark Turrentine, a professor of obstetrics and gynecology at Baylor College of Medicine.

Kennedy, who was an anti-vaccine activist before taking a role in the Trump administration, announced May 27 that the Centers for Disease Control and Prevention would no longer recommend covid vaccines for pregnant women or healthy children, bypassing the agency’s formal process for adjusting its vaccine schedules for adults and kids. The announcement, made on the social platform X, has been met with outrage by many pediatricians and scientists.

The HHS document meant to support Kennedy’s decision, obtained by KFF Health News, was sent to members of Congress who questioned the science and process behind his move, according to one federal official who asked not to be identified because he wasn’t authorized to discuss the matter publicly.

The document has not been posted on the HHS website, though it is the first detailed explanation of Kennedy’s announcement from the agency.

 Titled “Covid Recommendation FAQ,” the document distorts some legitimate studies and cites others that are disputed and unpublished, medical experts say.

HHS director of communications Andrew Nixon told KFF Health News, “There is no distortion of the studies in this document. The underlying data speaks for itself, and it raises legitimate safety concerns. HHS will not ignore that evidence or downplay it. We will follow the data and the science.”

HHS did not respond to a request to name the author of the document.

One of the studies the HHS document cites is under investigation by its publisher regarding “potential issues with the research methodology and conclusions and author conflicts of interest,” according to a link on the study’s webpage.