Very Disturbing. Korean study followed 8.4 million people and showed 27% increase of cancer in those who received the COVID shot.
New South Korean Study Indicates COVID Vax Increases Risk of Cancers
Very Disturbing. Korean study followed 8.4 million people and showed 27% increase of cancer in those who received the COVID shot.
Expert Critiques of the Study
Experts have strongly criticized this study as methodologically flawed and insufficient to support claims of a causal link between COVID-19 vaccines and cancer. Key issues include:
• Healthy user and screening bias: Vaccinated individuals are more likely to seek routine health screenings (e.g., for breast, colorectal, or prostate cancers), leading to higher detection rates that mimic increased risk. The study did not adequately control for this or other confounders like family history or screening frequency.
• Short follow-up period: The 1-year (and even 1-month) observation window is biologically implausible for detecting vaccine-induced cancers, as most cancers develop over years or decades.
• Lack of rigor: Published as a brief “correspondence” rather than full original research, with methods buried in supplements; authors’ expertise is in orthopedics and pulmonology, not epidemiology or vaccinology.
• No population-level signal: If vaccines truly increased cancer risk, global cancer rates would show a clear surge post-vaccination rollout, which they do not.
One expert noted that the findings likely reflect “unmasking” (pre-existing conditions detected during vaccination visits) rather than causation. Overall, the study “proves nothing” about vaccines causing cancer and could fuel harmful misinformation.
Broader Evidence Refuting a Link Between COVID-19 Vaccines and Cancer
Large-scale clinical trials, real-world surveillance, and reviews from authoritative bodies consistently show no evidence that COVID-19 vaccines (including mRNA types) cause cancer, accelerate its growth, or lead to recurrence. Key points include:
• Safety in trials and monitoring: Involving tens of thousands, trials for Pfizer/BioNTech and Moderna vaccines found rare serious side effects, with billions of doses administered globally under systems like VAERS showing no cancer signal. Vaccines have prevented millions of COVID-19 deaths, including among cancer patients.
• No biological plausibility for “turbo cancer” claims: Misinformation about mRNA “integrating into DNA” or suppressing immunity is debunked; modifications like N1-methylpseudouridine stabilize mRNA without promoting tumors (e.g., mouse studies show unmodified mRNA reduces cancer growth, while modified has neutral effects). No animal or human studies link these to cancer.
• Benefits for cancer patients: The National Cancer Institute (NCI), CDC, and American Cancer Society recommend vaccination for those with cancer, as it reduces hospitalization and death risk by up to 90% in this high-risk group, even if immune responses are somewhat weaker during treatment. Vaccines do not interfere with cancer therapies or biomarkers.
• Ongoing research: Studies in blood cancers, solid tumors, and post-transplant patients confirm vaccines’ protective role, with boosters improving responses; no increased cancer incidence observed in vaccinated cohorts.
In summary, while the South Korean study suggests associations, its flaws make it unreliable for confirming causation. Overwhelming evidence from rigorous sources refutes any increased cancer risk from COVID-19 vaccines, emphasizing their safety and necessity, especially for vulnerable populations.
A long list of criticisms without a single link offered. Do you have any links to these “expert critiques”?
I would start here: https://www.medpagetoday.com/infectiousdisease/covid19vaccine/117731. I’m happy to discuss any particulars. There are some very serious flaws in the mythology, but of course that doesn’t mean there is no relationship. But it doesn’t mean there is a relationship either. It’s just a hypothesis now waiting for a better test — or a series of better tests. Thanks for posting the article. I’ve already offered my opinion on what harms the actual living virus does — for many it’s scary stuff. But we should absolutely not take the vaccine safety for granted. I don’t think they’re doing that — although it might seem so. I think many people are looking into potential harms, and researchers are encouraged in my experience to look for those, not hide them. I hope my criticism of this study’s methods doesn’t make it seem like I’m trying to run cover for the vaccine. That would not be true. I take the vaccine — but always wishing I didn’t feel that I had to. What a horrible shame how the virus was unleashed on us. Great blog. Thanks again.