In a move that has sparked widespread concern among public health experts, the newly reshaped vaccine advisory panel under U.S. Health Secretary Robert F. Kennedy Jr. is set to hold its first meeting next week. The agenda, however, signals a dramatic departure from expected priorities. While discussions will touch on COVID-19 vaccines, the panel is not slated to vote on their use. Instead, it will focus on fall flu shots, respiratory syncytial virus (RSV) vaccines, and most notably, a contentious vote on thimerosal, a mercury-based preservative long targeted by anti-vaccine groups.The omission of HPV and meningococcal vaccine proposals two staples of adolescent immunization backed by decades of medical research has triggered alarm among pediatricians, immunologists, and healthcare policy advocates.Last week, RFK Jr., a longtime critic of vaccine mandates and a central figure in the anti-vaccine movement before his appointment under the Trump administration, abruptly disbanded the 17-member Advisory Committee on Immunization Practices (ACIP). In their place, he handpicked eight new members—several of whom have public ties to vaccine skepticism or have voiced criticism of pandemic-related health measures.While the official purpose of ACIP is to offer scientifically grounded recommendations on how to use FDA-approved vaccines, the first meeting’s limited scope has left many wondering whether politics is now outpacing public health.“It’s deeply troubling to see high-impact vaccines like HPV and meningococcal being pushed aside,” Dr. Susan Kressly, president of the American Academy of Pediatrics told AP. “These aren’t fringe topics. They are central to the health of children and young adults.”What the Panel Will and Won’t Discuss?According to the published agenda, the committee will not vote on COVID-19 vaccine guidance, although a discussion will open the session. Instead, voting items will include:Updated recommendations for the fall influenza vaccineRSV vaccine use in pregnant women and young childrenA pivotal vote on thimerosal, a preservative found in multi-dose flu shot vialsConspicuously missing are agenda items related to HPV (human papillomavirus) and meningococcal vaccines, both of which were expected to be up for review this month. These vaccines are crucial tools in preventing cervical cancer, genital warts, and bacterial meningitis—diseases that disproportionately affect teens and young adults.Historically, the committee’s recommendations are submitted to the CDC director for review and approval, and have been widely adopted by private insurance companies to determine vaccine coverage. However, with the CDC currently lacking a director, final decisions are going directly to Kennedy—raising concerns about potential conflicts of interest and non-evidence-based policymaking.Also Read: Kennedy Names New Vaccine Advisers Among Whom Are Anti-Vaxxers And Those Who Spread MisinformationThe 'Flu Vaccine' Thimerosal Debate ResurfacesAmong the most controversial items on the agenda is thimerosal, a compound that has long been a lightning rod in vaccine safety debates. Introduced in the 1930s to prevent bacterial contamination in multi-dose vials, thimerosal contains a form of ethylmercury. Despite studies confirming it is safe at the trace levels used in vaccines, it was heavily scrutinized in the 1990s and 2000s due to fears of a link to autism.Kennedy has long alleged that thimerosal contributes to developmental disorders—claims that have been widely debunked by peer-reviewed studies and public health authorities. Since 2001, nearly all vaccines recommended for U.S. children under six have been thimerosal-free, with the exception of some multi-dose influenza shots. Single-dose flu shots, which constitute the bulk of U.S. supply today, contain no thimerosal.The decision to revisit thimerosal has been read by many experts as a symbolic win for vaccine skeptics. We’ve moved on from this debate scientifically, but bringing it back to the table politicizes science that’s already settled.In response to the panel's formation and its narrow agenda, over 30 medical and public health organizations have voiced concerns. A major point of contention was Kennedy’s recent announcement that COVID-19 vaccines would no longer be routinely recommended for pregnant women, prompting groups to call on insurers to continue coverage regardless of the panel’s recommendations. Among the new panel members are individuals who have:Criticized mRNA vaccines despite contributing to their researchPublicly opposed lockdowns and public health mandatesLed organizations flagged for spreading vaccine misinformationThe changes have led some within the medical community to question whether professional organizations like the American Academy of Pediatrics (AAP) may begin issuing guidance that diverges from federal recommendations for the first time in decades.“Public trust hinges on consistency, transparency, and evidence,” said Dr. Kressly. “If that breaks down, we risk confusion, declining vaccination rates, and ultimately, the return of preventable diseases.”Public Health Implications: What’s at Stake?The sidelining of HPV and meningitis vaccines may seem procedural, but the ripple effects could be profound. Both vaccines have decades of efficacy data and are cornerstones of adolescent preventive care. The HPV vaccine, in particular, is recognized globally for its role in reducing cervical and other cancers, with the CDC, WHO, and FDA supporting its widespread use.Meningococcal vaccines are critical in protecting against fast-spreading and potentially deadly bacterial infections in young adults, particularly in school and college settings.Delaying or weakening guidance on these vaccines could:Undermine insurance coverage decisionsSow confusion among pediatricians and familiesContribute to declining vaccination rates in youthWhile the outcome of the thimerosal vote may be symbolic, the direction of the new panel under RFK Jr. is anything but. The current agenda marks a departure from a decades-long legacy of data-driven, consensus-based immunization policy in the U.S.As the world watches, many experts warn that political influence over vaccine science could compromise decades of progress.This isn’t just about thimerosal or flu shots, it’s about whether America remains a leader in evidence-based public health or veers toward populist pseudoscience.