Fact Check: Dr Peter McCullough claims mrna vaccine has long term problems

Fact Check: Dr Peter McCullough claims mrna vaccine has long term problems

Published August 10, 2025
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VERDICT
Partially True

# Fact-Check: "Dr. Peter McCullough claims mRNA vaccine has long-term problems" ## What We Know Dr. Peter McCullough, a cardiologist known for promot...

Fact-Check: "Dr. Peter McCullough claims mRNA vaccine has long-term problems"

What We Know

Dr. Peter McCullough, a cardiologist known for promoting controversial views on COVID-19 and vaccines, has made several claims regarding the long-term effects of mRNA vaccines. In a recent presentation at the European Parliament, he asserted that mRNA vaccines have caused a "second wave of injury" and that patients did not receive proper treatment for COVID-19. McCullough's statements suggest that mRNA and the spike protein produced by the vaccines persist in the body, leading to adverse health effects (AFP Fact Check).

However, scientific consensus indicates that while mRNA vaccines can have side effects, the claims of widespread long-term health issues are not supported by robust evidence. The European Medicines Agency (EMA) has stated that there is "no evidence of an increase in deaths related to COVID-19 vaccination in any age group" and that the vaccines have saved millions of lives (AFP Fact Check). Furthermore, experts clarify that mRNA is naturally fragile and breaks down quickly in the body, typically within days (AFP Fact Check).

Analysis

Dr. McCullough's claims about the mRNA vaccine's long-term effects lack substantial scientific backing. For instance, he argues that the mRNA and spike protein remain in the body for extended periods, which contradicts findings from experts who state that the mRNA is broken down rapidly and that any remaining spike protein fragments do not pose health risks (AFP Fact Check).

While McCullough cites studies to support his assertions, many of these studies have been criticized for misrepresentation or lack of context. For example, a study he referenced regarding mRNA persistence was clarified by one of its authors, who stated that there is no evidence for long-term persistence of mRNA beyond 28 days (AFP Fact Check). Additionally, the claims of increased cardiovascular risks associated with the vaccines are contested by health authorities, which note that the risks of myocarditis from COVID-19 infection are significantly higher than those from vaccination (AFP Fact Check).

The reliability of McCullough's sources is also questionable. His presentations often draw from a limited selection of studies that align with his views, while disregarding the broader scientific consensus that supports the safety and efficacy of mRNA vaccines (Science Feedback).

Conclusion

The claim that Dr. Peter McCullough makes regarding long-term problems associated with mRNA vaccines is Partially True. While it is accurate that some individuals may experience adverse effects from vaccines, the broader assertion that mRNA vaccines cause widespread long-term health issues is not supported by the majority of scientific evidence. The consensus among health authorities and experts is that the benefits of vaccination far outweigh the risks, and the claims made by McCullough often lack the necessary scientific rigor and context.

Sources

  1. US cardiologist makes sweeping false claims about effects of COVID-19 vaccinations
  2. Dr. McCullough Drops the Hammer in the Senate — FDA Concedes with Expanded Myocarditis Warning
  3. Published studies misrepresented by cardiologist Peter McCullough
  4. Peter McCullough Archives - FactCheck.org
  5. Retracted study provides 'greatest hits' of vaccine misinfo
  6. Cardiologist’s false claims used to promote fake COVID-19 vaccine recall
  7. Covid Vaccine Spike Proteins Cause Heart Damage Claim by US Doctor Peter McCullough

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Fact Check: Dr Peter McCullough claims mrna vaccine has long term problems | TruthOrFake Blog