Federal judge temporarily blocks RFK Jr.’s vaccine agenda – an epidemiologist answers questions parents may have |
Public health advocates have largely applauded a Massachusetts judge’s ruling on March 16, 2026, to temporarily block major changes to vaccine policy made by the Department of Health and Human Services since 2025.
The ruling pauses two major actions ushered in by HHS Secretary Robert F. Kennedy Jr. since he stepped into the role. First, it blocks Kennedy’s restructuring of a key vaccine panel called the Advisory Committee on Immunization Practices in June 2025. Second, it suspends HHS’s overhaul of the childhood vaccine schedule in January 2026, which cut the number of routine vaccinations children are recommended to receive from 17 to 11.
As an epidemiologist who studies vaccine hesitancy and a public-facing science communicator, I view these HHS actions as extremely damaging to public health, and I am relieved they have been paused, at least while legal proceedings are ongoing.
However, I also worry that this back-and-forth is detrimental to trust in science, especially for families who are already uneasy about vaccinating their kids or feel hesitant to do so.
What exactly happened?
The March 16 decision follows a lawsuit originally brought in July 2025 by six medical organizations, including the American Academy of Pediatrics. The medical organizations argued that HHS’s changes were implemented without following established legal and scientific processes.
The ruling........