"COVID-19 vaccines and boosters — both mRNA and non-mRNA — pose an increased risk of six types of cancer and a 27% higher risk of cancer overall, according to a recent South Korean study of over 8 million people...
According to the study, COVID-19 vaccines and boosters are associated with a higher risk of breast, colorectal, gastric, lung, prostate and thyroid cancer, across all vaccine types and age groups.
Mainstream medical commentators were quick to dismiss the findings, with MedPageToday describing it as 'flawed.' But other medical and scientific experts disagreed.
'In plain terms: both major COVID-19 vaccine platforms appear to be carcinogenic,' epidemiologist Nicolas Hulscher wrote in a post on Substack.
Dr. Angus Dalgleish, a medical oncologist, told The Defender the study builds on other recent findings but 'is the first to show that cDNA [non-mRNA] and mRNA vaccines are associated with cancer risk, suggesting that the spike protein is directly carcinogenic.'
Medical commentator John Campbell, Ph.D., said this week on his YouTube show that the research marks 'the largest-scale study so far' examining the association between the COVID-19 shots and cancer...
According to the study, while the carcinogenic potential of the SARS-CoV-2 virus responsible for COVID-19 'has been hypothetically proposed,' there has been little research on the potential cancer risk from COVID-19 vaccines.
The researchers said the 'shared structures' contained within the SARS-CoV-2 virus and the COVID-19 vaccines, including the spike protein, might mean that the COVID-19 shots are associated with cancer risks.
The study used data from 2021-2023 for over 8.4 million people in South Korea’s National Health Insurance Service database. The sample was split into two groups based on vaccination status. The vaccinated sample was further split into booster and non-booster groups.
Researchers tracked the patients for one year. The vaccinated group was tracked following vaccination. The results showed a statistically significant higher risk of cancer in the vaccinated group, including:
- Overall cancer: 27% higher risk
- Breast cancer: 20% higher risk
- Colorectal cancer: 28% higher risk
- Gastric cancer: 34% higher risk
- Lung cancer: 53% higher risk
- Prostate cancer: 69% higher risk
- Thyroid cancer: 35% higher risk
The statistical analysis of the results showed that there is a '1 in 1,000 chance that this result arose by chance,' Campbell said...
'The elevated cancer risks were not confined to one vaccine platform,” Hulscher wrote. 'Each vaccine type was associated with a measurable increase in overall cancer — and each had specific cancer sites driving the signal. In other words, no vaccine technology was free of cancer risk in this dataset.'"
Link to original study: https://biomarkerres.biomedcentral.com/articles/10.1186/s40364-025-00831-w
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