Alarming COVID Jab Contamination Shocks Scientists


by Dr. Joseph Mercola, Mercola:

  • In early April 2023, microbiologist Kevin McKernan detailed finding massive DNA contamination in Pfizer’s and Moderna’s bivalent COVID booster shots. The highest level of DNA contamination found was 30%, meaning nearly one-third of the content of the shot was plasmid DNA, the presence of which dramatically increases the likelihood of DNA integration and cancer


  • An in vitro experiment found that the modified RNA in the Pfizer jab has the ability to enter human liver cells and reverse transcribe into DNA in as little as six hours post-exposure
  • The lipid nanoparticles that the mRNA and DNA contaminants are encased in facilitate getting the DNA inside the cell. Once it’s in the cytoplasm, bits of DNA can enter the nucleus by random chance
  • Mice injected with the COVID mRNA shot passed on their acquired immune traits — both good and bad — to offspring, which not only suggests that the mRNA can enter the nucleus of the cell, but also that it can be permanently integrated into chromosomal DNA and have intergenerational effects
  • Pfizer’s bivalent jab has also been found to contain simian virus 40 (SV40) promoter, an oncogenic piece of the virus’ DNA known to drive very aggressive gene expression. Combined with pieces of DNA, the presence of SV40 promoter make the risk of cancer all the more likely
  • The SV40 promoter is a sequence used in gene therapy to drive DNA into the nucleus of cells. If the shots aren’t supposed to alter the human genome, why do they contain bits of DNA and an SV40 promoter that can drive that DNA into the nucleus?

In early April 2023, microbiologist Kevin McKernan — a former researcher and team leader for the MIT Human Genome project1 — posted a preprint paper2 detailing massive DNA contamination in Pfizer’s and Moderna’s bivalent COVID booster shots.3,4,5,6 As explained in the abstract:7

“Several methods were deployed to assess the nucleic acid composition of four expired vials of the Moderna and Pfizer bivalent mRNA vaccines. Two vials from each vendor were evaluated …

Multiple assays support DNA contamination that exceeds the European Medicines Agency (EMA) 330ng/mg requirement and the FDAs 10ng/dose requirements …”

The highest level of DNA contamination found was 30%, meaning nearly one-third of the content of certain vials was plasmid DNA, the presence of which dramatically increases the likelihood of genomic integration and cancer.

What this means, in plain English, is that the shots could potentially alter your DNA, which is something vaccine makers, health authorities and fact checkers have vehemently denied and written off as “impossible.” Yet here we are, with inconvenient facts staring us in the face yet again.

Regulatory Agencies Were Aware of the Problem

In a May 20, 2023, Substack article,8 McKernan pointed out that regulatory agencies were clearly aware of this problem early on, as Pfizer submitted documents to the European Medicines Agency (EMA) showing sampled lots had a broad range of double-stranded DNA (dsDNA) in them.

The EMA’s limit for dsDNA is 330 nanograms per milligram (ng/mg), and Pfizer’s data show sampled lots had anywhere from 1 ng/mg to 815 ng/mg of DNA. And, according to McKernan,9 the EMA’s limit may be too high to begin with, as “lower limits should be applied if the DNA is packaged in transfection ready lipid nanoparticles,” as they are in the shots.

In a sane regulatory environment, this kind of contamination would have resulted in a massive recall, considering the known and suspected dangers of dsDNA contaminants. Yet nothing was done about it.

Since McKernan’s paper was posted, others have confirmed the presence of dsDNA contaminants in the COVID shots. To be clear, DNA should not be present in a commercial product that has been made under good manufacturing practices.

Obviously, Pfizer and Moderna have not perfected their commercial process, or have taken shortcuts they shouldn’t have. As a result, countless millions have been injected with unnecessarily risky COVID shots.

DNA Contamination Confirmed

University of South Carolina professor Phillip Buckhaults has since confirmed the presence of dsDNA in the COVID shots. September 13, 2023, he testified10 to this before the South Carolina Senate Medical Affairs Ad-Hoc Committee on the Department of Health and Environmental Control (DHEC).

Buckhaults is a molecular biologist and cancer geneticist with extensive experience in DNA sequencing, and initially set out to debunk McKernan’s claims. To his shock, he replicated McKernan’s findings instead.

In his testimony, he explained how these DNA contaminants can integrate into your genome and disrupt the function of other genes, either long term or permanently, and may be passed on to offspring for generations.

He told the senators he was “alarmed about this DNA being in the vaccine,” as “there is a very real hazard” of the dsDNA integrating into a person’s genome and becoming a “permanent fixture of the cell” that can result in autoimmune problems and cancers.11

Buckhaults suspects high levels of DNA contaminants may also be causing some of the more serious side effects of the jabs, such as lethal cardiac arrest.12 Of the two lots he analyzed, he found between 5 nanograms and 20 ng of plasmid DNA — ranging from one to 200 base pairs long — per 300 microliter dose, and he points out that having a multitude of tiny fragments is far riskier than having one big piece of DNA.13

The risk of genome integration by dsDNA has been known for decades,14 so the individuals who decided to allow this contamination to remain cannot claim they didn’t know public health would be put at risk.

Buckhaults stressed that we need to collect and analyze DNA from various tissues of those who have received the COVID jabs — at least a few hundred people — to determine whether genomic integration is taking place, and what changes are occurring.

He also explained how the DNA contamination occurred in the first place. In summary, the products used during the clinical trials and the commercial products were not made in the identical way. The commercial product grew the modified RNA using a mix of DNA plasmid and E. coli, and the DNA were not properly filtered out — a clear sign of poor manufacturing processes.

COVID Shots May Cause Cancer in Several Ways

The presence of DNA isn’t the only way in which the mRNA COVID shots can cause cancer. mRNA can also reverse transcribe into DNA under the right circumstances. For example, one in vitro experiment,15,16 published in 2022, demonstrated that the modified RNA in the Pfizer jab has the ability to enter human liver cells and reverse transcribe into DNA in as little as six hours post-exposure. As reported in that peer-reviewed study:17

“… a recent study showed that SARS-CoV-2 RNA can be reverse-transcribed and integrated into the genome of human cells. In this study, we investigated the effect of BNT162b2 on the human liver cell line Huh7 in vitro. Huh7 cells were exposed to BNT162b2, and quantitative PCR was performed on RNA extracted from the cells.

We detected high levels of BNT162b2 in Huh7 cells and changes in gene expression of long interspersed nuclear element-1 (LINE-1), which is an endogenous reverse transcriptase.

Immunohistochemistry using antibody binding to LINE-1 open reading frame-1 RNA-binding protein (ORFp1) on Huh7 cells treated with BNT162b2 indicated increased nucleus distribution of LINE-1 …

Our results indicate a fast up-take of BNT162b2 into human liver cell line Huh7, leading to changes in LINE-1 expression and distribution. We also show that BNT162b2 mRNA is reverse transcribed intracellularly into DNA in as fast as 6 h upon BNT162b2 exposure.”

COVID Jab mRNA Can Enter the Cell Nucleus

According to a 2022 study,18 both the SARS-CoV-2 spike protein and the spike protein mRNA translocated into the nucleus of infected human cells. According to the authors, “the nuclear translocation of both S mRNA and S protein reveals a novel pathogenic feature of SARS-CoV-2.”

If the spike mRNA in the natural virus (and I use that term loosely, considering SARS-CoV-2 was most likely manmade) can enter human cells, might the mRNA in the COVID shots do the same? Probably.

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