Major medical groups seek court order to restore childhood vaccine schedule

Seven medical organizations and a pregnant physician amended a federal lawsuit on Jan. 20, 2026 to ask a U.S. court to undo recent Health and Human Services and Centers for Disease Control and Prevention changes to the childhood immunization schedule and to block a forthcoming meeting of the CDC’s vaccine advisory committee.

The plaintiffs named in the amended complaint include the American Academy of Pediatrics, the American College of Physicians, the American Public Health Association, the Infectious Diseases Society of America, the Massachusetts Public Health Alliance, the Society for Maternal‑Fetal Medicine and a pregnant physician. Their filing asks a federal judge to restore the immunization schedule to the form it took on April 15, 2025 and characterizes the overhaul as “the most egregious of the Defendants’ actions to date,” arguing the changes “have not been reasonably explained.”

The legal challenge escalates a dispute that began with a July 2025 suit over HHS and ACIP changes to COVID‑19 vaccine recommendations. Plaintiffs amended that complaint in January to add new claims targeting a broader revision that reduced routine childhood vaccine recommendations from 17 to 11. Under the revised schedule, vaccines that previously carried universal routine recommendations, including those against influenza, rotavirus, hepatitis A, hepatitis B, some forms of meningitis and respiratory syncytial virus (RSV), were reclassified so that protection is recommended only for certain high‑risk groups or under “shared decision‑making” between clinician and patient or family.

Acting CDC Director Jim O’Neill said in a Jan. 5 agency release that he signed a decision memorandum accepting the assessment’s recommendations and that “the data support a more focused schedule that protects children from the most serious infectious diseases while improving clarity, adherence, and public confidence.” Plaintiffs counter that the move will cause confusion for families, limit access to lifesaving vaccines and weaken population immunity. AAP President Andrew D. Racine, MD, PhD, FAAP, is quoted in the amended complaint saying federal decisions have abandoned rigorous standards, “causing unnecessary confusion for families, compromising access to lifesaving vaccines and weakening community protection.”

The complaint targets HHS and officials including Health Secretary Robert F. Kennedy Jr., and challenges actions by the CDC and its Advisory Committee on Immunization Practices. Plaintiffs note that Secretary Kennedy substantially reconstituted ACIP in June 2025, removing the committee’s 17 sitting members and replacing them with 14 advisors, some of whom have publicly questioned aspects of vaccine research. ACIP, under its new composition, voted last year to weaken several universal recommendations and said it will continue reassessing long‑established vaccine data.

An additional legal hurdle for the government came last week when a federal judge in western Massachusetts denied HHS’s motion to dismiss the original suit. The court has scheduled a preliminary‑injunction hearing for Feb. 13, 2026, putting the altered childhood schedule and the next ACIP meeting directly before a federal judge.

HHS has defended its actions. An HHS spokesman, Andrew Nixon, told reporters that the medical organizations “continue with their attempts to hinder this administration’s work through procedural and legal challenges,” and that the vaccine advisory committee “continues to operate lawfully and transparently.” HHS and CDC officials have also indicated that insurance coverage for the vaccines will remain in place, meaning parents who choose vaccination can still access these products without out‑of‑pocket costs.

The case raises immediate public health and equity questions: plaintiffs warn that narrowing routine recommendations and shifting to shared decision‑making could erect new access barriers and deepen disparities in childhood immunization, while the administration argues the changes improve clarity and confidence. The Feb. 13 hearing will test how courts balance agency authority, scientific process and community protection in guiding childhood vaccination policy.