2nd study finds Covid ‘vaccines’ increase risk of 6 major cancers

Written by Ian Brighthope on October 2, 2025. Posted in Current News

A large-scale South Korean study involving 8.4 million adults found that COVID-19 vaccination is associated with increased risks of multiple cancers, corroborating an earlier Italian study

Conducted using the Korean National Health Insurance database from 2021–2023, the study analyzed cancer incidence over one year, comparing vaccinated and unvaccinated groups.

After adjusting for factors like age, sex, comorbidities, income, and prior COVID-19 infection, the study reported a 27 percent higher overall cancer risk in vaccinated individuals (HR 1.27).

Specific cancers with elevated risks included lung (53 percent), prostate (69 percent), thyroid (35 percent), gastric (34 percent), colorectal (28 percent), and breast (20 percent).

The increased risk was consistent across vaccine platforms: cDNA vaccines (e.g., AstraZeneca) showed a 47 percent higher overall cancer risk, mRNA vaccines (e.g., Pfizer/Moderna) 20 percent, and mixed schedules 34 percent.

Booster doses were linked to a 23 percent higher risk of gastric cancer and a 125 percent higher risk of pancreatic cancer.

The elevated cancer risk was observed across all demographics, with women and the elderly showing the highest burden, though younger adults and men also faced increased risks for specific cancers.

This study aligns with a prior Italian study (~300,000 people) that found increased risks for overall cancer, breast, bladder, and colorectal cancers.

The consistent findings across both studies suggest that both mRNA and viral-vector COVID-19 vaccines is carcinogenic, prompting calls for further investigation and potential market withdrawal of these vaccines.

Today on behalf of my professional friends and medical colleagues, I declare the mRNA vaccines to be class one carcinogens.

See more here substack.com

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