TARGETING SCIENCERFK Jr’s Shakeup of Vaccine Advisory Committee Raises Worries About Scientific Integrity of Health Recommendations
HHS Secretary Robert F. Kennedy Jr. dismissed the immunization experts serving on the Advisory Committee on Immunization Practices, and replaced them with eight new members. The newly appointed members have expertise in psychiatry, neuroscience, epidemiology, biostatistics, and operations management. Many of them are vaccine skeptics who have actively spread vaccine-related misinformation, particularly relating to COVID-19 vaccines.
On June 11, 2025, Health Secretary Robert F. Kennedy Jr. announced a slate of eight new members to serve on the Advisory Committee on Immunization Practices, which advises the Centers for Disease Control and Prevention on national vaccine policy.
The announcement, made on the social media platform X, comes two days after Kennedy removed all 17 of the serving committee members. Kennedy called their replacements “a bold step in restoring public trust” rooted in “radical transparency and gold standard science.”
However, public health experts decried the removals, pointing to Kennedy’s promise not to change the committee and warning that the move politicizes its work and undermines its scientific integrity. Health experts have also noted that multiple new committee members appointed on June 11 have voiced anti-vaccine views that are not evidence-based.
The Conversation U.S. asked Santosh Kumar Gautam, an expert in global health policy at the University of Notre Dame, to explain how the vaccine committee’s guidance has shaped vaccine recommendations for the public, and what the changes might mean for peoples’ ability to access vaccines in the future.
What is the Advisory Committee on Immunization Practices?
The Advisory Committee on Immunization Practices, or ACIP, is a panel of experts appointed to advise the CDC on how to use vaccines to protect the health of people in the U.S. The committee’s job is to review multiple strands of scientific evidence to recommend which vaccines should be used, who should get them and when they should be given. Its guidance affects vaccine schedules for both children and adults, insurance coverage and public health policy across the country.
The committee was formed in 1964 to establish national vaccine policy as federal immunization programs began to expand. It can have up to 19 voting members, who are appointed by the secretary of Health and Human Services. Members are experts in areas such as medicine, public health and immunology. Member usually serve overlapping four-year terms to ensure continuity. All 17 previous members were appointed at different times during the Biden administration. Removing all members of the committee at once is unprecedented.
The group also includes nonvoting members from government health agencies, including the Food and Drug Administration and the National Institutes of Health. There are also representatives from more than 30 medical and public health organizations, such as the American Academy of Pediatrics and the American College of Physicians.
