Researchers found SV40 promoter sequences and excess DNA contamination in mRNA COVID vaccines, exceeding FDA limits by up to 627-fold — documented evidence
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Genomics researcher Kevin McKernan identified SV40 promoter-enhancer sequences and residual plasmid DNA in Pfizer and Moderna mRNA vaccines. A peer-reviewed study in Autoimmunity found DNA exceeded FDA regulatory limits by 36-153x for Pfizer and 112-627x for Moderna using fluorometry. Two of six Pfizer lots exceeded regulatory limits for SV40 sequences specifically. Regulators have not mandated recalls despite the findings.

Researchers found SV40 promoter sequences and excess DNA contamination in mRNA COVID vaccines, exceeding FDA limits by up to 627-fold

HEALTH·April 10, 2023·By Kevin McKernan·2.9K upvotes·198 comments
What They Said Was Crazy
We found DNA contamination levels in the COVID mRNA vaccines that far exceed the FDA's own regulatory limits, including sequences from the SV40 promoter-enhancer-ori.
Kevin McKernanApril 10, 2023Source

📄 The Receipts

Quantification of residual plasmid DNA and SV40 promoter-enhancer sequences
www.tandfonline.com/doi/full/10.1080/08916934.2025...
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Quantification of residual plasmid DNA and SV40 promoter-enhancer sequences

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