08/05/2026
🚨 New peer-reviewed evidence linking mRNA COVID-19 vaccines to cancer recurrence and increased incidence raises urgent questions.
A case from Kochi Medical School, Japan, published in the Journal of Dermatological Science, details an 85-year-old woman in remission from breast cancer for over a year.
One month after her sixth mRNA vaccine dose in early 2023, she developed aggressive metastatic skin lesions.
Biopsies confirmed invasive ductal carcinoma with high mitotic activity.
Immunohistochemistry revealed SARS-CoV-2 spike protein in nearly all tumor cells’ cytoplasm and nuclei—a novel finding.
No nucleocapsid protein was detected, confirming the vaccine as the spike source, not a natural infection.
Professor Shigetoshi Sano, the lead author, stated, “The presence of spike protein but not nucleocapsid protein in cancer cells is a novel finding… strongly suggesting a potential link between mRNA vaccines and cancer progression/metastasis.”
The study proposes several mechanisms for this link.
Vaccine mRNA or plasmid DNA could integrate into host DNA, disrupting tumor suppressor genes like TP53.
Spike protein may upregulate PD-L1, suppressing immune responses, and inhibit Type I interferons, weakening anti-tumor defenses.
It may also activate estrogen receptors, potentially fueling hormone-sensitive cancers like breast and ovarian.
Large-scale epidemiological data amplify these concerns.
A 2024 South Korean study in Biomarker Research, analyzing 8.4 million adults, found a 27% higher cancer incidence in vaccinated versus unvaccinated groups (HR 1.27, 95% CI: 1.21–1.33) within one year.
Specific increases included:
• Prostate: 69% (HR 1.69, 95% CI: 1.35–2.11)
• Lung: 53% (HR 1.53, 95% CI: 1.25–1.87)
• Thyroid: 35% (HR 1.35, 95% CI: 1.21–1.51)
• Gastric: 34% (HR 1.34, 95% CI: 1.13–1.58)
• Colorectal: 28% (HR 1.28, 95% CI: 1.12–1.47)
• Breast: 20% (HR 1.20, 95% CI: 1.07–1.34)
mRNA vaccines showed a 20% risk increase (HR 1.20, 95% CI: 1.14–1.26), with stronger signals for breast, colorectal, lung, and thyroid cancers.
Booster doses heightened risks, notably for pancreatic (125%, HR 2.25, p