Experts warn that genetic fragments in inoculations might overstimulate the immune system, potentially leading to cancer
Pfizer’s mRNA Covid-19 vaccines contain residual DNA levels exceeding regulatory safety limits, according to a peer-reviewed study published this week in the Journal of High School Science.
The research was conducted by student scientists at the US Food and Drug Administration’s (FDA) White Oak Campus lab in Maryland.
Residual DNA refers to small pieces of genetic material that may remain in vaccines or medicines after manufacturing. These fragments come from the cells or processes used to make the products.
World Health Organization (WHO) guidelines state that a single vaccine dose should not contain more than 10 nanograms of residual DNA. The study, however, found levels in Pfizer’s vaccines exceeding this limit by six to 470 times.
Researchers analyzed vaccines obtained from BEI Resources, a supplier linked to the National Institute of Allergy and Infectious Diseases. They used NanoDrop and Qubit methods to measure DNA levels. Both methods showed contamination above acceptable thresholds. Residual DNA was found in six vials from two different vaccine lots.
While the study stated that health risks posed by the DNA fragments are “currently unknown,” researchers warned that, in theory, they could integrate into human DNA and increase the risk of gene mutations. They also raised concerns that the fragments may contain oncogenes, which could lead to cancer. The authors recommended further testing to assess the potential risks.
The FDA has not yet commented on the findings. While reports of DNA contamination in Covid-19 vaccines have been circulating for years, US regulatory authorities have repeatedly brushed them off, stating that they pose no health risks.
Kevin McKernan, founder of Medicinal Genomics, described the findings as a “bombshell,” and warned that DNA fragments might overstimulate the immune system, potentially “fueling cancer growth.”
“Repeated exposure to foreign DNA through Covid-19 boosters may amplify this risk over time, creating conditions conducive to cancer development,” McKernan said in an interview with Maryanne Demasi, an Australia-based investigative journalist who first drew public attention to the study.
Nikolai Petrovsky, professor of immunology and head of Vaxine, an Australian biotechnology company, said the findings were a “smoking gun” and needed urgent attention from regulators. Petrovsky also accused the FDA of withholding information from the public, saying that the study “clearly shows the FDA was aware of these data,” given that it was conducted in its own lab under the supervision of its own scientists.
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