Vaccine cancer risk

Do not introduce Digital ID cards,

1-year risks of cancers associated with COVID-19 vaccination: a large population-based cohort study in South Korea

Large-scale population-based retrospective study in South Korea

To estimate the cumulative incidences and subsequent risks of overall cancers 1 year after COVID-19 vaccination.

Data N= 8,407,849

Between 2021 and 2023

Korean National Health Insurance database.

The participants were categorized into two groups based on their COVID-19 vaccination status.

Cancers significantly increased, 1 year post-vaccination

Thyroid HR, 1.351

(95% CI, 1.206–1.514)

Gastric HR, 1.335

(95% CI, 1.130–1.576)

Colorectal HR, 1.283

(95% CI, 1.122–1.468)

Lung HR, 1.533

(95% CI, 1.254–1.874)

Breast HR, 1.197

(95% CI, 1.069–1.340)

Prostate HR, 1.687

(95% CI, 1.348–2.111)

cDNA vaccines

Associated with the increased risks of:

Thyroid, gastric, colorectal, lung, prostate cancers

mRNA vaccines

Linked to the increased risks of:

Thyroid, colorectal, lung, breast cancers

Heterologous vaccination

Related to the increased risks of:

Thyroid, breast cancers.

Observed associations between COVID-19 vaccination and cancer incidence

Vaccinated men

More vulnerable to gastric and lung cancers

Vaccinated women

More susceptible to thyroid and colorectal cancers.

Population under 65

More vulnerable to thyroid and breast cancers

Population over 75

More susceptible to prostate cancer

COVID-19 vaccination-associated cancer risk was likely more elevated among individuals aged ≤ 65

(except prostate cancer)

Booster doses

Gastric and pancreatic cancers

Mechanisms from the paper

Renin–angiotensin–aldosterone system

Mutagenicity

Inflammatory cascade

Underlying molecular mechanisms

And he causeth all, both small and great, rich and poor, free and bond, to receive a mark in their right hand, or in their foreheads:

And that no man might buy or sell, save he that had the mark, or the name of the beast, or the number of his name.

Here is wisdom. Let him that hath understanding count the number of the beast: for it is the number of a man; and his number is Six hundred threescore and six.