mRNA Vaccine Misinformation 2025: Kennedy's $500M Defunding Based on False Claims

Kennedy's claims were immediately rejected by leading infectious disease experts:

"There was no factual basis to what he said yesterday. He comes across as an authority on vaccines, and he's not." Osterholm also rejected the idea that any vaccine needed to offer "perfect protection" to be worthwhile, calling that standard "absolutely ridiculous." He described the funding cuts as one of the worst decisions he has seen in 50 years of public health work. ^[4]

"This HHS announcement is an exercise in disinformation." Hotez said the mRNA COVID-19 vaccines "perform extremely well." ^[1]

"The notion that this vaccine is more dangerous than the virus is just fanciful." Offit noted that a vaccine's job is to "keep you out of the hospital, keep you out of the intensive care unit and keep you out of the morgue, and this vaccine performs very well in that regard." ^[1]

The efficacy of mRNA COVID-19 vaccines is among the most extensively documented in medical history:

In their peer-reviewed Phase 3 trials, the Pfizer-BioNTech and Moderna mRNA vaccines showed 95.0% and 94.1% efficacy, respectively, at preventing symptomatic COVID-19. ^[6][7]

A modeling study published in The Lancet Infectious Diseases (Imperial College London) estimated that COVID-19 vaccination prevented approximately 14.4 million deaths globally in the first year of rollout (Dec. 8, 2020 – Dec. 8, 2021) across 185 countries, based on official reported COVID-19 deaths — a figure the researchers said rose to 19.8 million when modeled against excess-mortality data. ^[8]

An analysis by STAT News found that the document HHS cited to justify the cuts traces back to "Toxic Shot: Facing the Dangers of the COVID 'Vaccines,'" a bibliography with a foreword by Sen. Ron Johnson (R-Wis.) — not a government scientific review. Its lead compiler is a dentist, not an immunologist, virologist, or vaccine expert, and it selectively cites lab studies on spike-protein harm from infection as if they were evidence against vaccination, even though many of the underlying papers concluded vaccination's benefits outweigh the risks of the virus itself. ^[13]

Robert F. Kennedy Jr. has been a prominent figure in the anti-vaccine movement for decades:

Kennedy has repeatedly claimed vaccines cause autism. FactCheck.org notes the claim has been contradicted by more than 40 high-quality studies involving over 5.6 million people, and its analysis of a 2025 CDC website revision suggesting a link found the revision itself "not evidence-based." ^[10]

Under Kennedy's HHS, the CDC reversed its long-standing "vaccines do not cause autism" language in late 2025 — a change STAT News reported bypassed the agency's normal scientific-review process. ^[11]

In 2021, Kennedy falsely claimed the COVID-19 vaccine was "the deadliest vaccine ever made." PolitiFact rated the claim "Pants on Fire!" — its lowest rating — finding it relied on misreading VAERS data, an open-access system where anyone can submit unverified reports that, per the CDC, "cannot be interpreted or used to reach conclusions about the existence, severity, frequency, or rates of problems associated with vaccines." ^[12]

On September 4, 2025, Kennedy testified before the Senate Finance Committee, defending the mRNA funding cuts and asserting that COVID-19 vaccine access remains unrestricted. PolitiFact live fact-checked the hearing and found several of his statements inaccurate or misleading, including his claim that "everybody can get the vaccine" — in practice, many people now face new barriers requiring off-label prescriptions. ^[5]

HHS's Biomedical Advanced Research and Development Authority (BARDA) terminated 22 mRNA vaccine development contracts and investments, together worth approximately $500 million. ^[2][3]

HHS Secretary Kennedy's claim that mRNA vaccines "fail to protect effectively" is FALSE.

The scientific record demonstrates: randomized controlled trials found the Pfizer-BioNTech and Moderna mRNA vaccines 95.0% and 94.1% effective, respectively, at preventing symptomatic COVID-19 ^[6][7]; and researchers estimate COVID-19 vaccination prevented roughly 14.4–19.8 million deaths worldwide in its first year alone ^[8].

Kennedy's decision to terminate $500 million in mRNA research funding rested on claims that infectious-disease experts have repeatedly rejected, calling the HHS announcement "an exercise in disinformation." ^[1][4]

For current guidance on COVID-19 vaccines, consult the CDC's official vaccine page. ^[9]