HHS Appeals Court Ruling That Blocked Kennedy's Vaccine Policy Changes

The Department of Health and Human Services has appealed a March 16, 2026 federal court ruling by Judge Brian E. Murphy that blocked health secretary Robert F. Kennedy Jr.'s changes to federal vaccine policy, including his reconstitution of the Advisory Committee on Immunization Practices. The American Association of Pediatrics and other medical organizations sued, arguing Kennedy violated the Administrative Procedures Act and government policies requiring specific expertise for committee members. The Department of Justice filed its appeal to the First Circuit on April 29, 2026, though the brief notice does not outline specific legal arguments. Meanwhile, Kennedy's vaccine-skeptical group Children's Health Defense has unsuccessfully sought to join the case, and HHS revised the committee charter in April to add expertise categories like toxicology and pediatric neurodevelopment that some experts say respond to the lawsuit's criticisms.

Federal Court Ruling Blocking Kennedy's Vaccine Policy Changes

• ▪The American Association of Pediatrics filed a lawsuit along with several other professional organizations and several anonymous women.
• ▪Federal judge Brian E. Murphy issued the preliminary ruling on March 16, 2026.
• ▪Federal judge Brian E. Murphy issued a preliminary ruling in March 2026 that Robert F. Kennedy Jr.'s moves were likely illegal.
• ▪The organizations argued that Robert F. Kennedy Jr.'s health department violated the Administrative Procedures Act in reconstituting a federal vaccine advisory committee and changing the childhood vaccine schedule.
• ▪A federal judge issued a ruling that stalled many of health secretary Robert F. Kennedy Jr.'s changes to federal vaccine policy.

Department of Justice Appeal and Legal Arguments

• ▪Children's Health Defense is a vaccine-skeptical group founded by Robert F. Kennedy Jr.
• ▪The Department of Justice opposed Children's Health Defense's motion to enter the suit.
• ▪Reports indicated that the White House has been steering Robert F. Kennedy Jr. and other officials away from focusing on vaccines.
• ▪The Department of Justice filed an appeal on Wednesday, April 29, 2026.
• ▪Richard Hughes is a lawyer at Epstein Becker Green representing the American Association of Pediatrics.
• ▪Children's Health Defense petitioned the court to enter the case involving the American Association of Pediatrics lawsuit.
• ▪The Department of Justice is appealing the ruling to the United States Court of Appeals for the First Circuit.

Revised ACIP Charter and Expertise Requirements

• ▪The revised Advisory Committee on Immunization Practices charter added toxicology as a type of expertise relevant to the committee.
• ▪The Advisory Committee on Immunization Practices charter was revised earlier in April 2026.
• ▪The revised Advisory Committee on Immunization Practices charter added knowledge about recovery from serious vaccine injuries as a type of expertise relevant to the committee.
• ▪The revised Advisory Committee on Immunization Practices charter added several organizations that will serve as liaison members that share some of Robert F. Kennedy Jr.'s views on vaccines.
• ▪Children's Health Defense argued that the renewed Advisory Committee on Immunization Practices charter changed the course of the trial.

Perspective of American Association of Pediatrics and allied organizations

• ▪Richard Hughes expressed disappointment that the Department of Justice filed a notice of appeal against the ruling blocking Robert F. Kennedy Jr.'s vaccine policy changes.

Perspective of Children's Health Defense

• ▪Children's Health Defense contended that under the renewed charter, every Advisory Committee on Immunization Practices member the court found unqualified now satisfies at least one listed expertise.

Perspective of Department of Justice

• ▪The Department of Justice opposed Children's Health Defense's motion to enter the lawsuit involving Robert F. Kennedy Jr.'s vaccine policy changes.

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