Revamped ACIP Panel Begins Review of Longstanding Vaccine Policies

Health and Human Services Secretary Robert F. Kennedy Jr. has initiated sweeping changes to the Advisory Committee on Immunization Practices (ACIP), replacing all prior members earlier this month. The newly appointed panel held its first meeting on Wednesday, signaling a shift in focus toward reviewing long-approved vaccines and reevaluating the U.S. childhood immunization schedule.

The ACIP advises the Centers for Disease Control and Prevention (CDC) on vaccine recommendations, eligibility, and insurance coverage. Kennedy’s appointments have sparked controversy due to the inclusion of vaccine skeptics and critics, such as Dr. Robert Malone.

Focus on Systematic Vaccine Review

The new ACIP chair, Dr. Martin Kulldorff, announced the formation of work groups to carry out targeted evaluations. One group will assess the current childhood vaccination schedule, while another will focus on vaccines that have not been reviewed in more than seven years.

Dr. Kulldorff specifically mentioned the hepatitis B vaccine, which is routinely administered to newborns, as a candidate for review. He also indicated that the panel could reexamine the combined measles, mumps, and rubella (MMR) vaccine and the chickenpox vaccine, both of which have faced scrutiny from vaccine skeptics.

“This was supposed to be a regular practice of the ACIP, but it has not been done in a thorough and systematic way. We will change that,” said Kulldorff.

Pushback from Medical Community

The American Academy of Pediatrics (AAP) did not participate in the ACIP meeting. Dr. Sean O’Leary, an infectious disease specialist with the AAP, denounced the new panel, calling it “illegitimate” and expressing concern over its credibility and direction.

According to O’Leary, the idea of revisiting the childhood vaccine schedule is a long-standing tactic of the anti-vaccine movement. He noted that vaccines are continuously monitored through real-time safety and disease surveillance systems and that the AAP will continue to issue independent vaccine guidance.

“If this were to continue, the medical providers, public health professionals, the entire country is no longer going to trust ACIP. That’s clear,” O’Leary said.

Ongoing Review of Other Vaccines

During the meeting in Atlanta, the ACIP reviewed data on COVID-19 and RSV vaccines. A vote on the latter was postponed until the next day. Thursday’s session will also cover influenza vaccines and other immunizations.

All ACIP recommendations must be approved by the CDC director before they become official federal policy.

Kulldorff emphasized a balanced approach to evaluating vaccines: “Vaccines are not all good or bad. If you think that all vaccines are safe and effective and want them all, or if you think that all vaccines are dangerous and don’t want any of them, then you don’t have much use for us.”

He added, “But if you wish to know which vaccines are suitable for you and your children and at what ages, then we will provide you with evidence-based recommendations.”

Resignation of Appointee and Financial Disclosures

Ahead of the meeting, Dr. Michael Ross, one of Kennedy’s appointees, stepped down. An HHS spokesperson said the withdrawal occurred during a financial disclosure review but provided no additional details. Ross previously served on another CDC advisory panel on women’s health.

At the time of the meeting, the CDC’s conflict of interest webpage listed only one disclosure among the new members — Dr. Cody Meissner.

During the session, ACIP member Vicky Pebsworth disclosed stock ownership in healthcare sector funds that include vaccine manufacturers. She stated that her holdings were below the federal threshold for a conflict of interest.

Kennedy justified the dismissal of the previous panel members by alleging “persistent conflicts of interest,” although HHS and CDC advisory committees are subject to longstanding, rigorous conflict-of-interest policies.

Profiles of New Panel Members

Several of Kennedy’s appointees have expressed controversial views on vaccination:

• Dr. Robert Malone has claimed to be a key figure in the development of mRNA vaccines but has since made disproven statements regarding the safety of COVID-19 shots.

• Retsef Levi has posted on social media falsely linking mRNA vaccines to serious harm and death, particularly among young people.

• Vicky Pebsworth is associated with the National Vaccine Information Center, a group widely criticized for promoting vaccine misinformation.

These appointments raise questions about the future direction of the committee and the scientific basis for its forthcoming recommendations.

Conclusion

The sweeping changes to ACIP under Secretary Robert F. Kennedy Jr. mark a turning point in U.S. vaccine policy oversight. With the inclusion of several known vaccine skeptics and the intent to reevaluate long-established recommendations, the committee’s work is likely to face continued scrutiny from public health organizations. The long-term implications of these changes remain uncertain, but trust in ACIP’s decisions will be a critical factor in maintaining public confidence in immunization efforts across the country.

FAQs

What is the ACIP?

The Advisory Committee on Immunization Practices (ACIP) is a panel of independent experts that provides guidance to the CDC on vaccine recommendations and immunization schedules.

Why were all ACIP members replaced?

Health and Human Services Secretary Robert F. Kennedy Jr. replaced all members, citing concerns over conflicts of interest. However, existing policies already govern such issues.

What changes will the new ACIP consider?

The panel plans to review the childhood vaccine schedule and older vaccine recommendations that have not been systematically revisited in recent years.

Who are some of the new appointees?

New members include Dr. Robert Malone, Retsef Levi, and Vicky Pebsworth — all of whom have made controversial or skeptical statements about vaccine safety and effectiveness.

Why is the American Academy of Pediatrics not participating?

The AAP has stated it views the new ACIP panel as illegitimate and will continue issuing independent immunization schedules for children.

Will ACIP’s recommendations still need CDC approval?

Yes. Any changes recommended by ACIP must be approved by the CDC director before becoming official policy.