Covid injections linked to significant increases in stroke, heart attacks, coronary artery disease and arrhythmia, a new study of 85 million people finds

A study published in the International Journal of Preventative Medicine in March analysed the outcomes of other studies, which evaluated a combined total of 85 million people.  It showed a link between covid injections and an increase in various conditions: stroke (+240%), heart attack (+286%), coronary artery disease (+244%) and arrhythmia (+199%).

This study adds to the ever-growing evidence of covid vaccine harms.

A study titled ‘COVID-19 Vaccination and Cardiovascular Events: A Systematic Review and Bayesian Multivariate Meta-Analysis of Preventive Benefits and Risks’ was published in the International Journal of Preventative Medicine on 14 March 2025.  The aim of the study was to analyse the available literature to establish if there was a link between covid “vaccines” and cardiovascular conditions.

That study notes that “to date, more than 11.8 billion vaccine doses have been distributed globally” and concerns have been raised regarding the potential health risks linked to covid injections.

Previous systematic reviews and meta-analyses had mainly focused on issues like myocarditis and pericarditis and had not fully explored the connection between covid injections and other cardiovascular complications. So, the authors wrote, “in this study, our goal is to present a strong Bayesian multivariate meta-analysis model to examine the link between vaccine-related cardiovascular events.”

Bayesian multivariate meta-analysis is a statistical method that combines evidence from multiple studies involving several comparisons among groups based on a single outcome. This method treats both data and model parameters as random variables, allowing for the integration of prior knowledge and assumptions when calculating the meta-analysis.

The study conducted a thorough search of prominent electronic databases, including PubMed, Web of Science, Scopus, Cochrane Library and Google Scholar, until 22 October 2023 to retrieve all relevant publications related to covid vaccination and cardiovascular events.

The researchers included all studies on humans that focused on adverse events, specifically cardiovascular events, occurring after covid vaccination, and excluded narrative and systematic reviews, case reports and original papers that lacked available data, as well as articles written in languages other than English. The quality of the included articles was assessed by two reviewers independently.

The researchers identified 1,266 articles related to the search criteria, and after a thorough examination, 15 studies remained, with 11 controlled studies chosen for the primary analysis and 4 studies without a control group included in the secondary analysis.

The selected studies analysed the outcomes of different doses of covid injections, including Pfizer’s BNT162b2 vaccine, AstraZeneca’s ChAdOx1 vaccine and other vaccines, with a total of 37,774,228 people receiving the first dose, 8,076,761 receiving the second dose and 199,021 receiving the third dose.

The results of the primary analysis suggest that the risk of cardiovascular events varies depending on the type and dose of the covid injection, with the BNT162b2 vaccine associated with an increased risk of coronary artery disease (“CAD”), myocardial infarction and stroke, and the ChAdOx1 vaccine associated with an increased risk of arrhythmia.  The second dose of the covid “vaccine” exhibited a higher risk of myocardial infarction and CAD, while the third dose had no impact on myocardial infarction and decreased the risk of stroke.

The analysis revealed that, except for the case of CAD related to Asian countries, no significant findings were noted based on geographical region, suggesting that the risk of cardiovascular events associated with covid vaccination is not significantly influenced by geographical location.

The secondary analysis, which involved synthesising the findings of six independent studies conducted in the United States, compared the BNT162b2 vaccine and Moderna’s mRNA-1273 vaccine.  It found no significant difference between the two vaccines regarding the odds of cardiovascular consequences, indicating that both types of mRNA vaccines have similar effects on cardiovascular health.

The authors conclude: “The findings of the present study may help public health policy for future pandemics, consider CAD in the context of covid-19 vaccination, and assess the cardiac condition before the choice of vaccine is offered to adults. To minimise such risks, it is recommended that comprehensive preclinical and clinical studies be conducted to assess the cardiovascular safety of new vaccines, including large-scale trials involving diverse populations.”

It is in the details of the findings that the true horrors associated with the injections are found. The study’s outcomes and quality assessment results are detailed in tables supplementary to the paper.  In an article published by Activist Post, epidemiologist Nicholas Hulscher summarised what these tables showed.

Increased Risks Following Covid-19 Vaccination 

(Compared to unvaccinated/control group)

Coronary Artery Disease (CAD):

• Overall: OR 1.70 (95% CrI: 1.11–2.57) → 70% increased risk
• BNT162b2 (Pfizer): OR 1.64 (95% CrI: 1.06–2.55) → 64% increased risk
• Second dose (all vaccines): OR 3.44 (95% CrI: 1.99–5.98) → 244% increased risk

Related: A Catastrophic Confirmation: New Study Links COVID-19 Vaccines to Serious Adverse Events, James Lyons-Weiler, 11 March 2025

Myocardial Infarction (MI):

• Second dose (all vaccines): OR 3.86 (95% CrI: 2.28–6.60) → 286% increased risk
• BNT162b2 (Pfizer): OR 1.87 (95% CrI: 1.22–2.89) → 87% increased risk
• Second dose of BNT162b2: OR 3.84 (95% CrI: 2.21–6.66) → 284% increased risk

Stroke:

• BNT162b2 (Pfizer): OR 2.09 (95% CrI: 1.36–3.21) → 109% increased risk
• First dose of BNT162b2: OR 3.69 (95% CrI: 2.13–6.37) → 269% increased risk
• First dose (any vaccine): OR 3.40 (95% CrI: 1.98–5.86) → 240% increased risk

Arrhythmia:

• First dose (any vaccine): OR 2.99 (95% CrI: 1.20–7.44) → 199% increased risk
• ChAdOx1 (AstraZeneca): OR 8.11 95% CrI: 3.67–17.99) → 711% increased risk
• First dose of ChAdOx1: OR 4.89 (95% CrI: 1.21–19.38) → 389% increased risk

This large-scale analysis of over 85 million people shows that covid-19 vaccines are associated with significantly increased risks of stroke, heart attack, coronary artery disease and arrhythmia. Pfizer’s mRNA injections (BNT162b2) were specifically linked to substantial increases in stroke, myocardial infarction and coronary artery disease – particularly following the first and second doses. Arrhythmia risk was elevated following the first dose of any vaccine, with the strongest signal observed after AstraZeneca’s ChAdOx1.

As each day passes, a new study is published that reveals the serious harms of the covid-19 genetic countermeasures. They must be removed from global markets immediately.

85-Million-Person Study Finds Increased Risks of Stroke, Heart Attack, Coronary Artery Disease, and Arrhythmia Following Covid-19 Vaccination, Activist Post, 6 May 2025

In a Twitter post, Hulscher pointed out that the study above is one of four landmark studies that demonstrate covid mRNA injections are not safe for human use.

Hulscher has also reported that – extrapolating results from a study published last month which was headed by MIT Professor Retsef Levi and Florida Surgeon General Dr. Joseph Ladapo – a conservative estimate of the number of Americans who have died from Pfizer’s covid injection alone is 470,000. 

“It’s important to note that the [estimate is based on a comparison] to another extraordinarily dangerous mRNA injection [Moderna]. Thus, the estimate of 470,000 American deaths is highly conservative, as the true increase in mortality compared to being unvaccinated is likely much higher,” Hulscher said.

Adding, “This also means that the VAERS extrapolation of over 600,000 US covid-19 vaccine deaths is not only highly plausible, but a conservative estimate as well.”

“The deadly covid-19 mRNA injections, still being administered to millions of American children, are responsible for more American casualties than World War I, World War II and the Vietnam War combined,” he said.