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

Hong Hin Kim, Min-Ho Kim, Myeong Geun Choi, Eun Mi Chun, September 2025

This large-scale population based study was done in Seoul, South Korea with data from 2021 through 2023 involving 8.4 million people.

Overall risk of cancer was 27% higher in vaccinated vs. unvaccinated (HR 1.27, 95% CI 1.21-1.33).

Lung cancer risk increased by 53% (HR 1.53, 95% CI 1.25-1.87).

Prostate cancer risk increased by 69% (HR 1.69, 95% CI 1.35-2.11).

Thyroid cancer risk increased by 35% (HR 1.35, 95% CI 1.21-1.52).

Stomach cancer risk increased by 34% (HR 1.34, 95% CI 1.13-1.58).

Colorectal cancer risk increased by 28% (HR 1.28, 95% CI 1.12-1.47).

Breast cancer risk increased by 20% (HR 1.20, 95% CI 1.07-1.34).

Vaccine Platform

cDNA vaccines (eg. AstraZenica) increased overall risk of cancer by 47% (HR 1.47, 95% CI 1.39-1.56).

mRNA vaccines (eg. Pfizer/Moderna) increased overall risk of cancer by 20% (HR 1.20, 95% CI 1.14-1.26).

Mixed schedules increased overall risk of cancer by 34% (HR 1.34, 95% CI 1.21-1.48).

Booster Dose Risk

Booster doses increased the risk of stomach cancer by 23% (HR 1.23, p=0.041).

Booster doses increased the risk of pancreatic cancer by 125% (HR 2.25, p<0.001).

Overall Trends

All demographic groups, including young adults, had a higher incidence of cancer. The mean age of individuals in this study was 44yo.

Men had a higher risk for stomach and lung cancers.

Women had a higher risk for thyroid and colorectal cancers.

https://pubmed.ncbi.nlm.nih.gov/41013858

https://biomarkerres.biomedcentral.com/articles/10.1186/s40364-025-00831-w

Millions of people today are suffering from Long COVID and COVID Shot Injury. Unfortunately, many hospital affiliated physicians are ignorant of the underlying causes or in complete denial that COVID Shots have any side effects at all. Thus, they are at a loss as to how to truly help their patients. The key to treating Long COVID and COVID Shot Injury is to understand the underlying problem in both – the spike protein.

Spike protein is the part of the SARS-CoV-2 virus that attaches to and infects human cells. It is incredibly toxic to the human body resulting in massive inflammation, broad scale antibody production, and microscopic clots, just to name a few of its effects. It’s the reason COVID was so deadly in its initial form. The mRNA shots that most people received codes for this spike protein. This genetic material spreads throughout all of our organ systems and turns our own cells into spike protein factories. Then our immune system comes into contact with the spike protein, makes antibodies to it, and that is what they hoped would save the day – that these anti-spike antibodies would prevent you from getting COVID, spreading COVID, and get us out of the pandemic. Well, as you can see in the data from my previous posts, it was a total disaster. Not only did they not prevent COVID, they made it more likely to get COVID. Further, they were incredibly dangerous with side effects including myocarditis, heart attack, stroke, turbo cancers, and blood clots.

The key to treating Long COVID and COVID Shot Injury is to mitigate the spike protein and its toxic effects. In my opinion, the two best treatment protocols for this immense problem are the protocols from Independent Medical Alliance developed by a team of physicians led by Paul Marik, MD and Pierre Kory, MD, and the McCullough Protocol developed by Peter McCullough, MD. I have had the honor to personally meet all three of these incredible physicians and have successfully used their protocols in treating thousands of patients over the past 4 years.

As the veil of censorship and ignorance is slowly lifted, it is my hope that all of our colleagues join us in fighting this pre-eminent problem of our time.

COVID-19 vaccination, all-cause mortality, and hospitalization for cancer: 30-month cohort study in an Italian province

Cecilia Acuti Martellucci 1, Angelo Capodici 1, Graziella Soldato 2, Matteo Fiore 1, Enrico Zauli 3, Roberto Carota 2, Marco De Benedictis 2, Graziano Di Marco 2, Rossano Di Luzio 2, Maria Elena Flacco 4, Lamberto Manzoli 1

This study was done in the province of Pescara, Italy involving about 300,000 residents. It was conducted from June 2021 through December 2023 and published in July 2025. It is consistent with other reports over the past few years showing an increased risk for cancer from COVID shots. Here are some of its findings.

Overall cancer risk increased 23% (HR 1.23, 95% CI 1.11-1.37).

Breast cancer risk increased 54% (HR 1.54, 95% CI 1.10-2.26).

Bladder cancer risk increased 62% (HR 1.62, 95% CI 1.07-2.445).

Colon-rectum cancer risk increased 35% (HR 1.35, 95% CI 1.01-1.80).

The following cancers had increased risk with COVID shots but were not statistically significant: hematological, uterine, ovarian, thyroid, and prostate.

https://pubmed.ncbi.nlm.nih.gov/40881928

In a previous study published in 2024, Akkus et al demonstrated a link between the COVID shots and colon cancer.

Types and Rates of COVID-19 Vaccination in Patients With Newly Diagnosed Microsatellite Stable and Instable Non-Metastatic Colon Cancer

Erman Akkus 1,✉, Bahar Karaoglan 1, Cihangir Akyol 2, Ali Ekrem Ünal 3, Mehmet Ayhan Kuzu 2, Berna Savaş 4, Güngör Utkan 1

In particular, the authors studied microsatellite instability-high (MSI-H) colon cancer, named because of the instability of the tumors cells due to genetic mutations. The study ran from June 2021 through June 2023 and was published in June 2024. Two COVID shots were used: Pfizer and CoronaVac. CoronaVac was an inactivated SARS-CoV-2 virus vaccine developed in China and available to several countries during the pandemic including Turkey.

The Pfizer shot was associated with a greater than 500% increased risk of developing MSI-H colon cancer (OR 6.39, 95% CI 1.55-26.26, p = 0.01).

No such increased risk was found with CoronaVac.

https://pmc.ncbi.nlm.nih.gov/articles/PMC11227084

Finally, there is a recently published paper by Marik et al, COVID-19 mRNA-Induced “Turbo Cancers”. How do these shots cause cancer? The authors review the mechanisms involved. At the end of the paper, they offer suggestions for preventative measures.

https://journalofindependentmedicine.org/articles/v01n03a02

Association Between COVID-19 Vaccination and Neuropsychiatric Conditions James A Thorp, MD 1, Claire Rogers, MSPAS, PA-C *2, Kirstin Cosgrove, CCRA 3 Steven Hatfill, MD M Med 4, Peter Breggin, MD 5, Drew Pinsky, MD 6, Peter A McCullough, MD, MPH 7

This study collected data from the CDC, FDA and VAERS database from 1990 through 2024. It was published in June 2025. Its findings are alarming to say the least. It used Proportional Reporting Ratios (PRRs) to compare numbers of Adverse Events reports after COVID shots with reports after influenza vaccinations and total vaccinations. A PRR of 1 means the number of reports were equal with both drugs. A PRR of 2 means there were twice as many reports in the study drug compared to the comparison drug. The CDC and FDA define a PRR of 2 or greater as the safety threshold to investigate a potential danger in the study drug.

ALL of the following Adverse Events had a PRR of far greater than 2. As you can see, many were greater than 100 (100 times as many reports compared to the comparison drug).

Multiple other studies have demonstrated the same catastrophic results.

https://pubmed.ncbi.nlm.nih.gov/39560882

https://pubmed.ncbi.nlm.nih.gov/38806183

https://pubmed.ncbi.nlm.nih.gov/38834668

Yes, COVID was a stressful time. But stress is not the primary reason our neurologists, psychiatrists, and psychologists have been so busy these past 5 years…

https://ijirms.in/index.php/ijirms/article/view/2090

COVID-19 Vaccines: A Risk Factor for Cerebral Thrombotic Syndromes Claire Rogers 1,*, James A Thorp 2,3, Kirstin Cosgrove 4 and Peter A McCullough 5

https://www.ijirms.in/index.php/ijirms/article/view/1982

This study used data from CDC, FDA, and VAERS databases from 1990 through 2023. It compared reports of Adverse Events after COVID shots compared to those after influenza vaccines and to all other vaccines. It did this by using Proportional Reporting Ratio (PRR). PRRs are a statistical measure to help detect whether a specific adverse event from one drug is reported more often compared to another. It is commonly used to identify potential safety signals. A PRR of 1 means the Adverse Event was reported at the same rate for both drugs. A PRR of 2 means the Adverse Event was reported twice as often in the subject drug compared to the comparison drug. Indeed, a PRR of 2 is the usual cut off to trigger a safety signal.

Cerebral Venous Thrombosis was reported 2000 times more often after COVID shots compared to influenza vaccinations (PRR 2070: 95% CI, 955-4490, p < 0.0001).

Cerebral Arterial Thrombosis was reported 1000 times more often after COVID shots compared to influenza vaccinations (PRR 1120: 95% CI, 152-8280, p < 0.0001).

Total Cerebral Thrombosis was reported 1000 times more often after COVID shots compared to influenza vaccinations (PRR 1120: 95% CI, 723-1730, p < 0.0001).

Atrial fibrillation was reported 100 times more often after COVID shots compared to all other vaccines (PRR 123: (95% CI, 88.3-172, p << 0.0001).

Further, the “Pfizer post-marketing analysis done from December 10, 2020 to February 28, 2021 [documented] 42,086 casualties including 1223 deaths in just the first 10 weeks of rollout.”*

*BNT162b2 5.3.6 CUMULATIVE ANALYSIS OF POST-AUTHORIZATION ADVERSE EVENT REPORTS OF PF-07302048 (BNT162B2) RECEIVED THROUGH 28-FEB-2021. Report prepared by Worldwide Safety Pfizer for the Federal Drug Administration and approved on April 30, 2021.https://phmpt.org/wp- content/uploads/2021/11/5.3.6-postmarketing-experience.pdf. (Accessed June 15, 2023).

By the way, this 10 week analysis is part of the Pfizer data that the FDA requested to stay sealed for 75 years. Well, they lost that lawsuit and in January 2022 a federal judge ruled that the FDA must expedite the release of these documents.

https://www.ijirms.in/index.php/ijirms/article/view/1982

Apparent risks of postural orthostatic tachycardia syndrome diagnoses after COVID-19 vaccination and SARS-Cov-2 Infection Alan C. Kwan 1 , Joseph E. Ebinger 1, Janet Wei1, Catherine N. Le2, Jillian R. Oft2, Rachel Zabner2, Debbie Teodorescu1, Patrick G. Botting1, Jesse Navarrette1, David Ouyang 1, Matthew Driver1, Brian Claggett3, Brittany N. Weber3, Peng-Sheng Chen1 & Susan Cheng 1

This study was done in Los Angeles and Boston in 2022 and involved 284,592 vaccinated patients. Patients received Pfizer (62%), Moderna (31%), or Johnson & Johnson (6.9%) [less than 0.1% received another product such has AstraZeneca or Novavax]. They compared medical diagnoses that occurred within 90 days after vaccination compared to the 90 days before vaccination. The three diagnoses that had the highest post-vaccination odds were myocarditis, dysautonomia, and POTS.

Myocarditis risk increased by 157% [OR 2.57 (95% CI: 1.02-6.77, p = 0.046)].

Dysautonomia risk increased by 124% [OR 2.24 (95% CI: 1.30-3.87, p = 0.002)].

POTS risk increased by 52% [OR 1.52 (95% CI: 1.36-1.71, p < 0.001)].

Note the gender differences. Myocarditis was more common in males. POTS was more common in females.

https://pubmed.ncbi.nlm.nih.gov/37303827

COVID-19 Vaccination and Cardiovascular Events: A Systematic Review and Bayesian Multivariate Meta-Analysis of Preventive Benefits and Risks Karimi, Raheleh1,2; Norozirad, Mina3; Esmaeili, Foad4; Mansourian, Marjan2,5; Marateb, Hamid R.6,7,8 International Journal of Preventive Medicine 16():14, March 2025. | DOI: 10.4103/ijpvm.ijpvm_260_24

This was a large meta-analysis reviewing 15 studies involving about 85 million people (45 million vaccinated, 40 million unvaccinated) from multiple countries across Asia, Europe, and North America. It was published in March 2025. Few controlled Moderna studies were available, so this study focused on the Pfizer (BNT162b2) and Astra Zeneca (ChAdOx1) shots.

Figure 4: Subgroup analysis for arrhythmia, MI, CVD, and Stroke events following COVID-19 vaccination

Karimi, Raheleh1,2; Norozirad, Mina3; Esmaeili, Foad4; Mansourian, Marjan2,5; Marateb, Hamid R.6,7,8

COVID shots increased the risk of the following events/diseases:

Coronary Artery Disease (CAD)

Overall: 70% increased risk [OR 1.70 (95% CrI: 1.11-2.57)]

Pfizer: 64% increased risk [OR 1.64 (95% CrI: 1.06-2.55)]

2nd dose all vaccines: 244% increased risk [OR 3.44 (95% CrI: 1.99-5.98)]

Myocardial Infarction (MI)

2nd dose all vaccines: 286% increased risk [OR 3.86 (95% CrI: 2.28-6.60)]

Pfizer: 87% increased risk [OR 1.87 (95% CrI: 1.22-2.89)]

Pfizer 2nd dose: 284% increased risk [OR 3.84 (95% CrI: 2.21-6.66)]

Stroke

Pfizer: 109% increased risk [OR 2.09 (95% CrI: 1.36-3.21)]

Pfizer 1st dose: 269% increased risk [OR 3.69 (95% CRI: 2.13-6.37)]

All vaccines 1st dose: 240% increased risk [OR 3.40 (95% CrI: 1.98-5.86)}

Arrhythmia

All vaccines 1st dose: 199% increased risk {OR 2.99 (95% CrI: 1.20-7.44)]

AZ: 711% increased risk [OR 8.11 (95% CrI: 3.67-17.99)]

AZ 1st dose: 389% increased risk [OR 4.89 (95% CRI: 1.21-19.38)]

How can anyone look at this data and say the COVID shots are safe? They are not safe. They are dangerous and they are deadly…

https://pubmed.ncbi.nlm.nih.gov/40191438

A review study was done in 2023, analyzing all published autopsies related to COVID-19 vaccination. In total 44 papers representing 325 autopsy cases were studied.

The most implicated organ system was the cardiovascular system (49%).

Most deaths occurred within a week from last shot administration.

240 deaths (73.9%) were independently adjudicated as directly due to or significantly contributed to by the COVID shots.

The primary causes of death included: cardiac (35%), pulmonary embolism (12.5%), myocardial infarction (12%), VITT (7.9%), myocarditis (7.1%), multisystem inflammatory syndrome (4.6%), and cerebral hemorrhage (3.8%).

openvaers.com/covid-data/mortality

VAERS is the vaccine adverse event reporting system managed by the CDC and FDA. It is a voluntary reporting system, thus its numbers grossly underestimate the true number. Case reports are carefully vetted by the CDC before they are added to the database. Submitting a false report is against federal law, a felony, and punishable by fine and imprisonment. As you can see the total number of reports of death associated with vaccination was quite low for many years – until 2021. No previous vaccine has ever been associated with nearly as many deaths as the COVID shots. Indeed, the COVID shots have resulted in more reports of death than all other vaccines combined.

Earlier this year, the Centers for Disease Control and Prevention (CDC) removed COVID shot recommendations for all healthy children. Well, just this week the American Academy of Pediatrics (AAP) rejected this recommendation and advised COVID shots for all children 6 months and older. What’s going on here? I didn’t think you were allowed to reject CDC guidelines, especially guidelines about COVID. Why the discrepancy? Hmm…? Sometimes sense can be made by following the money. According to AAP’s own website, their top corporate sponsors are Merck, Sanofi, Moderna, and Pfizer…

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