Peer-Reviewed Article: Pfizer’s mRNA Covid Jab has DNA Contamination, By Brian Simpson

In early April 2025, a bombshell dropped in the world of vaccine scepticism: a peer-reviewed paper, touted as the first of its kind, claimed to confirm that Pfizer's mRNA COVID-19 vaccine contains DNA contamination, including the controversial SV40 enhancer sequence:

https://www.sciencedirect.com/science/article/pii/S266667902400017X?via%3Dihub

The Vigilant Fox, a Substack outlet known for challenging mainstream narratives, breathlessly reported on the study, framing it as undeniable proof that the "pristine shot millions rolled up their sleeves for" was anything but.

https://www.vigilantfox.com/p/scientists-shocked-pfizer-mrna-dna-sv40

The article leans heavily on commentary from Dr. Mikolaj Raszek of Merogenomics, who unpacks the findings with a mix of scientific gravitas and palpable alarm.

The core claim is straightforward yet explosive: researchers found bacterial plasmid DNA—bits of genetic material used in the vaccine's production process—lingering in Pfizer's shots. Among these remnants, they identified the SV40 enhancer/promoter, a sequence tied to a monkey virus with a notorious past. The article asserts that this isn't just sloppy manufacturing; it's a potential health hazard. Raszek calls the SV40 component "extremely dangerous," hinting at risks like cancer or genetic disruption. The implication is clear: something sinister might be afoot, hidden in plain sight within the vials.

How did this happen? The Vigilant Fox walks us through the alleged production switcheroo. During Pfizer's initial clinical trials, the mRNA was crafted using a PCR process—clean, precise, and yielding that golden "95% efficacy" stat. But when it came time to scale up for billions of doses post-emergency approval, they pivoted to a messier method: bacterial plasmids. These circular DNA snippets, stuffed into bacteria to churn out mRNA, carried extras like spike protein genes, antibiotic resistance markers, and—crucially—the SV40 enhancer. The process was supposed to break down and purify this DNA, leaving only the mRNA behind in lipid nanoparticles. Instead, the article claims, Pfizer's cleanup was sloppy, leaving both mRNA and plasmid DNA in the final product.

The evidence, per the article, comes from a rigorous experiment. Researchers took four Pfizer vaccine vials—some monovalent (original strain), some bivalent (updated strains)—stored properly and unopened. They injected these into tough embryonic kidney cells and watched the fallout. The cells churned out spike protein, as expected, but also excreted it via exosomes—tiny cellular messengers that could spread it body-wide. The presence of SV40 sequences, the article suggests, ties this to Pfizer's specific formulation, amplifying the stakes.

The Vigilant Fox doesn't hold back on the drama. It cites Raszek predicting the paper's days are numbered before a retraction—"information that just simply does not look good for the company" rarely survives the scientific establishment's wrath, he muses. The piece ties this to a broader narrative: a Slovak official's earlier claim of DNA contamination turning people into "GMOs," and a growing global unease about mRNA vaccines. It's a call to arms for sceptics, a red flag waved at a public already wary of Big Pharma.

We await to see what becomes of this, since the authorities seem to be ok with DNA contamination.

https://www.vigilantfox.com/p/scientists-shocked-pfizer-mrna-dna-sv40

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