Judge Blocks RFK Jr.’s Vaccine Policy Changes

A Massachusetts federal judge blocked key parts of Health and Human Services Secretary Robert F. Kennedy Jr.’s reshaping of federal vaccine policy on March 16, 2026, citing likely violations of federal law. The ruling is a setback for the administration’s efforts to overhaul the nation’s immunization practices.

Ruling Details

District Judge Brian Murphy ruled in favor of the American Academy of Pediatrics and other medical groups, who argued that Kennedy’s changes to vaccine policy were “arbitrary and capricious” and violated the Administrative Procedure Act [1, 2]. Specifically, the judge found that the government bypassed the Advisory Committee on Immunization Practices (ACIP) when making changes to the childhood immunization schedule, undermining the integrity of the process.

ACIP Appointments Blocked

Judge Murphy also blocked 13 appointees selected by Kennedy to serve on the ACIP from continuing in their positions, pending further review. The plaintiffs argued that many of the new appointees lacked the necessary vaccine-related experience or expertise [3]. The judge noted that the defendants “provided no basis” for the court to assess the expertise of the new members [4].

Impact on Upcoming Meeting

The ruling effectively postponed a scheduled ACIP meeting set to take place on March 18-19, as any votes by the current committee were blocked. The meeting’s agenda included potential votes on COVID-19 vaccine injuries, long COVID issues, and the methodology for formulating future recommendations [3].

Administration Response

The Department of Health and Human Services (HHS) indicated its intention to appeal the ruling. HHS spokesperson Andrew Nixon stated the department expects the decision to be overturned, similar to previous attempts to challenge the Trump administration’s governing efforts [2].

Broader Implications

While the ruling doesn’t affect research funding or FDA approvals of new vaccines, it represents a significant victory for public health advocates and evidence-based medicine. Richard Hughes, a lawyer for the medical groups, called the decision “a significant victory for public health, evidence-based medicine, the rule of law, and the American people” [2]. The long-term implications of the ruling and the administration’s response remain to be seen.