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RFK Jr.’s Vaccine U-Turn and Agency Shake-Up Fuel HHS Controversy

His endorsement of the MMR vaccine shows a sharp break with his past stance following his dismissal of CDC immunization advisers.

© Photo by Chip Somodevilla/Getty Images
(R) U.S. Secretary of Health and Human Services Robert F. Kennedy Jr. attends President Donald Trump's address to a joint session of Congress at the U.S. Capitol on March 04, 2025 in Washington, D.C. (L) Bill Nye attends the arrivals of Sierra Club's 2025 Trail Blazers Ball at the Skirball Cultural Center in Los Angeles, CA on April 2, 2025
Bill Nye speaks onstage during Global Citizen NOW at Spring Studios on April 30, 2025 in New York City. Inset Secretary of Health and Human Services (HHS), Robert F. Kennedy Jr. (Noam Galai/Getty Images for Global Citizen)  (Getty)
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Overview

  • He endorsed the MMR vaccine during a measles outbreak in Texas, marking a notable reversal from his long-held anti-vaccine position.
  • He dismissed all 17 members of the CDC’s Advisory Committee on Immunization Practices, raising alarms over the agency’s vaccine policymaking.
  • Under his leadership, the FDA has begun using artificial intelligence tools to streamline drug approvals, drawing criticism over AI reliability.
  • He unveiled plans to investigate the causes of autism as part of his Make America Healthy Again agenda despite halting key clinical trials and vaccine research.
  • Science educator Bill Nye publicly rebuked Kennedy’s frequent anti-vaccine texts, underscoring his widening rift with scientific experts.