This episode of TWiV presents a critical clinical update, expressing deep alarm over a perceived assault on science and public health. Dr. Daniel Griffin and Vincent Racaniello highlight the controversial June 2025 ACIP meeting, where unsubstantiated claims and political influence reportedly led to unscientific recommendations regarding vaccine policies, including the re-evaluation of routine childhood immunizations and calls for thimerosal-free flu vaccines, despite scientific consensus. The hosts strongly criticize the proposed US withdrawal from GAVI, which endangers global childhood vaccination efforts and contributes to resurgent outbreaks like polio. Additionally, the episode offers updates on current respiratory virus activity (RSV, influenza, SARS-CoV-2), new therapeutic approvals, emerging variants, and a re-evaluation of COVID-19 vaccine risks versus the higher risks of infection, before addressing long COVID treatments and listener medical questions.
Exploring the Assault on Science and Key Health Updates
1:47 The "Attack on Science": The episode opens with concerns about a growing disregard for scientific evidence, exemplified by RFK Jr.'s false claims about vaccine testing, which are directly countered by a comprehensive database of 340+ randomized controlled trials for licensed vaccines.
2:40 Controversial ACIP Meeting Outcomes: The June 2025 Advisory Committee on Immunization Practices (ACIP) meeting saw the introduction of new anti-vaccine working groups and a presentation by an anti-vaccine advocate that cited a non-existent study on thimerosal, later removed by the CDC.
9:39 Unscientific Recommendations: Despite rebuttals from CDC scientists, the ACIP chair permitted and validated unscientific arguments, leading to votes recommending thimerosal-free flu vaccines for all age groups, a stance unsupported by scientific data and potentially detrimental to global vaccine access.
17:14 Public Opinion on Vaccines: A Harvard survey indicates strong public trust (94-98%) in the efficacy and safety of routine childhood vaccines and their societal importance, though trust in government approval agencies is slightly lower (82%).
19:04 Threat to Global Health: GAVI Funding Withdrawal: RFK Jr.'s declaration to withdraw the US's $1.2 billion pledge to GAVI (the global vaccine alliance) is criticized for undermining international vaccination programs and contributing to resurgent outbreaks, such as significant polio cases in Papua New Guinea and Pakistan.
22:50 Alarming Avian Flu Situation: The US faces its "worst animal health emergency" with over 175 million birds culled due to H5N1 since 2020, and Cambodia has reported its fifth human death this year, prompting the USDA to consider poultry vaccination.
24:35 Measles Resurgence and Flu Season Impact: The US has recorded 1,214 confirmed measles cases across 36 jurisdictions this year, nearing a record, while the recent flu season saw nearly 250 pediatric deaths, primarily among unvaccinated children.
29:09 Reframing COVID-19 Vaccine Risks: The discussion highlights that the risk of myocarditis from COVID-19 vaccines (e.g., Moderna's ~65 cases/million, usually mild) is significantly lower (7-16 times) and less severe than the risk of myocarditis from COVID-19 infection itself.
34:55 Long COVID Treatment and Research: The episode delves into long COVID, presenting a study on metabolic changes in children with MIS-C. It also examines a randomized trial for Stellate Ganglion Block for smell distortion (parosmia), which showed a substantial placebo effect but no superiority over saline.
46:00 Listener Medical Q&A: Daniel addresses questions including the rare phenomenon of HIV post-treatment controllers, details on Moderna's new, less reactogenic COVID vaccine, and the controversial use of metformin for long COVID prevention (not a standard or widely recommended treatment).