U.S. Health Secretary Rewrites Rules for Vaccine Advisory Panel

Kennedy broadens expertise requirements after judge ruled most members unqualified

Apr. 7, 2026 at 3:19am

Got story updates? Submit your updates here. ›

A minimalist design in the style of Keith Haring, where the outline of a syringe and vaccine vial glow with vibrant neon lines against a deep, dark background, emphasizing the essential role of vaccines in public health.Tensions over vaccine advisory panels could shape future public health policies.Boston Today

U.S. Health Secretary Robert F. Kennedy Jr. is rewriting the rules for membership on a key vaccine advisory panel, the Advisory Committee on Immunization Practices (ACIP), after a judge ruled that most of Kennedy's prior selections were unqualified and put their decisions on hold.

Why it matters

The ACIP is a powerful body that advises the CDC on vaccine policies, including the U.S. childhood immunization schedule. Kennedy, a longtime anti-vaccine activist, had previously removed all 17 independent experts on the panel and replaced them with members who shared his controversial views, prompting a legal challenge.

The details

In a March 16 decision, a federal judge concluded that Kennedy's reconstituted ACIP panel violated federal law by including members who lacked the required expertise in vaccine use, research, and immunization practices. The new ACIP charter published by the Department of Health and Human Services broadens the list of acceptable expertise, including specialists in biostatistics and toxicology, in an apparent effort to address the judge's concerns.

  • On March 16, a federal judge ruled that Kennedy's ACIP panel was unlawfully reconstituted.
  • On March 25, an attorney representing a vaccine-critical group sent a letter to Kennedy recommending changes to the ACIP charter.
  • On April 6, the Department of Health and Human Services published a renewed ACIP charter with broadened membership criteria.

The players

Robert F. Kennedy Jr.

The U.S. Health Secretary who rewrote the rules for membership on the ACIP panel, a longtime anti-vaccine activist.

Brian Murphy

A Boston-based U.S. District Judge who ruled that Kennedy's reconstituted ACIP panel was unlawful.

Andrew Nixon

A spokesperson for the Department of Health and Human Services who downplayed the significance of the ACIP charter changes.

Aaron Siri

An attorney representing the Informed Consent Action Network, a group critical of vaccine safety and mandates, who sent a letter to Kennedy recommending changes to the ACIP charter.

Got photos? Submit your photos here. ›

What they’re saying

“The ACIP charter renewal and publication 'are routine statutory requirements and do not signal any broader policy shift.'”

— Andrew Nixon, HHS spokesman

“All 13 of the ACIP members whose qualifications were challenged in Murphy's decision 'do have the requisite experience.'”

— Aaron Siri, Attorney representing Informed Consent Action Network

What’s next

The Trump administration has not yet appealed Judge Murphy's ruling, but still has 60 days to do so.

The takeaway

This case highlights the ongoing tensions between public health officials, vaccine advocates, and anti-vaccine activists over the composition and decision-making of influential advisory panels like the ACIP. The outcome could have significant implications for future vaccine policies and public trust.