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Court blocks sweeping changes to US vaccine guidelines
A federal judge in Massachusetts ruled Monday that the Trump administration overstepped legal boundaries by attempting to revamp childhood immunization requirements, delivering a setback to Health and Human Services Secretary Robert F. Kennedy Jr.
Background: Kennedy's regulatory push
Since assuming office a year ago, Kennedy has sought to roll back vaccine mandates, reducing the recommended number of childhood shots from 17 to 11. His efforts included dismissing the entire membership of the Advisory Committee on Immunization Practices (ACIP), a panel of independent experts that advises the Centers for Disease Control and Prevention (CDC) on vaccine schedules.
Kennedy replaced the committee with appointees who have publicly questioned vaccine safety, many of whom had no prior involvement with ACIP. The move drew sharp criticism from medical organizations, which argued the changes lacked scientific backing.
Legal challenge and ruling
The American Academy of Pediatrics and other medical groups filed a lawsuit, contending the administration violated federal procedures. U.S. District Judge Brian Murphy sided with the plaintiffs, writing in a 45-page decision that the government had abandoned established scientific and legal protocols.
"The Government has disregarded methods codified into law, undermining the integrity of its actions."
Judge Brian Murphy, U.S. District Court for the District of Massachusetts
Murphy also suspended Kennedy's appointments to ACIP, citing a lack of the "rigorous screening" typically required for panel members. The ruling further noted that the administration bypassed ACIP entirely in revising vaccine schedules, calling it a "technical, procedural failure."
Immediate fallout
The Department of Health and Human Services (HHS) confirmed that a Wednesday meeting of ACIP has been postponed. An HHS spokesperson, Andrew Nixon, stated the agency plans to appeal, framing the decision as another attempt to obstruct the Trump administration's agenda.
Medical groups praised the ruling. The American Medical Association, the largest U.S. organization of physicians, called it "an important step toward protecting the health of Americans, particularly children."
Public health concerns
The policy changes have sown confusion among parents and healthcare providers, particularly regarding insurance coverage for vaccines long considered essential to public health. Some states are now urging providers to adhere to pre-Kennedy immunization schedules, while medical associations have issued independent recommendations to counter the administration's revisions.
One of the most contentious changes involved removing the longstanding recommendation that all newborns receive hepatitis B vaccination. Critics argue such shifts endanger children by deviating from evidence-based practices.
Next steps
The Trump administration is expected to challenge the ruling in a higher court. Meanwhile, the legal setback leaves the future of U.S. vaccine policy in limbo as stakeholders await further developments.