Do covid injections cause cancer? A professor of biology gives her opinion
By Rhoda Wilson on November 10, 2025
Dr. Charlotte Kuperwasser, Professor in the Department of Developmental, Molecular and Chemical Biology at Tufts University, Massachusetts, describes three biologically plausible mechanisms that may link covid mRNA injections to cancer.
She also describes the patterns of cancers that are developing that, while not proving causation, should not be dismissed as merely coincidence.
The Third Rail: Covid-19 Vaccines and Cancer
By Charlotte Kuperwasser, as published by Brownstone Institute on 5 November 2025
Table of Contents
Introduction
What We Know and Don’t Know
Timing and Cancer Development
Patterns to Watch
Conclusion
About the Author
Introduction
I’m going to touch on a highly controversial subject, one that has become the third rail among cancer biologists and the broader medical community: the possible link between covid-19 vaccination and cancer. Because my laboratory’s mission is centred on cancer prevention, I cannot in good conscience ignore the elephant in the room.
As my colleague, internationally renowned cancer biologist Dr. Wafik El-Deiry, and I articulated in the September ACIP meeting on covid vaccines, nearly 50 publications have reported a temporal association between covid-19 mRNA vaccination and the onset of cancer. Epidemiological studies (one from Italy and one from South Korea) have also described increased cancer incidence among covid-vaccinated people compared to unvaccinated groups (albeit with caveats). These reports are mounting and it’s time we acknowledge that something meaningful may be occurring rather than dismissing them outright; this latter response seems to be the dominant reaction in academia, the media and by our regulatory agencies.
My goal here is to unpack the science and outline plausible biological mechanisms between the association of covid mRNA vaccination and cancer that warrant further and urgent investigation. The purpose is not to make claims either way but to frame the issue that must be addressed in hopes that open scientific discussion and more importantly, research funding can be directed towards this urgent and growing area of concern. The current climate has made it impossible for scientists to study this without fear of personal or professional repercussions.
What We Know and Don’t Know
At present, there are no published studies demonstrating a direct causal mechanism by which the mRNA vaccines induce cancer. However, that does not mean such a causal connection doesn’t exist. In fact, there are at least three biologically plausible mechanisms that, in my view, merit rigorous study and evaluation given their known links to causing cancer. I’ve written about these mechanisms before in other contexts, but here I’ll explain how they may apply to the Covid-19 mRNA vaccines.
more:
https://expose-news.com/2025/11/10/do-covid-injections-cause-cancer/