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| - Last Updated on July 2, 2025 by Dr Priyamvada
Quick Take
A social media post raises concerns about COVID and heart attack risks. The video claims that Big Pharma created the COVID-19 virus and that creating the COVID vaccines was even worse. After fact-checking, we found that the claim is mostly false.
The Claim
The Instagram video states: “The worst thing that the Big Pharma has ever done to humanity is the creation of COVID-19 virus, and it’s an even worse vaccine which has caused micro clotting in the blood of the population, which is increasing the number of strokes, massive cardiac arrests, and heart attacks.” It further claims that vitamin C can dissolve blood clots, ozone therapy can nullify vaccine effects, and the heart has become weaker due to the vaccine, advising against straining it.
Fact Check
Did Big Pharma create COVID-19?
No. There is no credible evidence that pharmaceutical companies created the COVID-19 virus, SARS-CoV-2. Scientific consensus, supported by studies, suggests the virus likely originated naturally, possibly from bats, and was first identified in Wuhan, China, in late 2019. Research published in journals like Nature confirms SARS-CoV-2 is a naturally evolved strain, not a lab-made product. Conspiracy theories, such as those in the 2020 video Plandemic, claiming Big Pharma engineered the virus, have been widely debunked as misinformation.
COVID and heart attack: Is there a real connection?
Rarely, and only with specific vaccines. Certain COVID-19 vaccines, such as AstraZeneca and Johnson & Johnson (adenovirus vector vaccines), have been linked to a rare condition called thrombosis with thrombocytopenia syndrome (TTS), involving blood clots and low platelet levels. Blood clots can lead to serious conditions like heart attacks and strokes, but this risk is extremely uncommon. For example, in the U.S., only 60 cases of TTS were reported among over 18 million J&J vaccine recipients, with 9 deaths. The risk is estimated at 5.8 per million for women and 2.2 per million for men. In contrast, COVID-19 infection itself poses a much higher risk of blood clots, which can contribute to heart attacks. mRNA vaccines (Pfizer-BioNTech and Moderna) have not been linked to TTS. The benefits of vaccination far outweigh these rare risks.
Vaccine Type|
Risk of Blood Clots|
Frequency|
AstraZeneca|
TTS (rare)|
<1 in 100,000|
J&J|
TTS (rare)|
5.8 per million (women), 2.2 per million (men)|
mRNA (Pfizer, Moderna)|
No link to TTS|
Not applicable|
Is there a rise in heart attacks post-COVID?
Yes, but it’s linked to the virus, not the vaccine. Studies have shown that COVID-19 infection can increase the risk of COVID-related heart issues, including heart attacks, even after recovery. For example, a 2022 study found that survivors of COVID-19 have a higher risk of cardiovascular problems, such as post-COVID heart attack, in the months following infection. This is because the virus can cause inflammation and damage to blood vessels, increasing the likelihood of heart-related issues. Vaccination significantly reduces the risk of severe COVID-19 and its long-term complications, including heart attacks.
Similarly, there is widespread misinformation related to COVID-related heart issues. For example, some claim that COVID-19 vaccines increase the risk of heart attacks by 500%. Others also allege that these vaccines are causing neurological issues and a new type of heart attack. However, these are all misleading.
Can vitamin C treat vaccine side effects?
No. Vitamin C is important for immune health and tissue repair, but there is no evidence it can dissolve blood clots, whether caused by vaccines or other factors. A 2015 study suggests high-dose vitamin C may even promote clotting by affecting red blood cells. Claims that a 1970s study showed vitamin C dissolves clots lack credible references and are not supported by modern research. Natural remedies cannot replace prescription treatments for blood clots or COVID-related heart issues.
Is ozone therapy a vaccine antidote?
No. Ozone therapy, which involves administering ozone gas, has been explored as a potential treatment for COVID-19 pneumonia due to its anti-inflammatory and antiviral properties. Studies, such as one in Frontiers in Public Health (2020), suggest it may help reduce oxidative stress in severe COVID-19 cases. However, there is no scientific evidence that ozone therapy can counteract or nullify the effects of COVID-19 vaccines. Claims about reversing vaccine side effects, including those related to heart attacks, are unsupported and misleading.
COVID vaccine and cardiac events: What do we know?
No, but there is a rare risk of myocarditis. mRNA COVID-19 vaccines (Pfizer-BioNTech and Moderna) have a rare association with myocarditis, an inflammation of the heart muscle, particularly in young males under 25, often after the second dose. Myocarditis is not the same as a heart attack, which involves blocked blood flow to the heart. The CDC reports these COVID vaccine and cardiac events are rare, with most cases occurring within 7 days of vaccination and resolving quickly with mild symptoms. For example, a 2021 study found a low incidence of myocarditis post-vaccination, with most patients recovering fully. The risk of myocarditis from COVID-19 infection is significantly higher and more severe, contributing to COVID-related heart issues. The vaccine does not cause widespread heart weakening.
Condition|
Risk Post-Vaccination|
Risk Post-COVID-19 Infection|
Myocarditis|
Rare, mostly mild|
Higher, more severe|
Recovery|
Typically full|
May involve long-term issues|
The claims in the Instagram video are largely false. There is no evidence that Big Pharma created the COVID-19 virus, a claim rooted in debunked conspiracy theories. While rare side effects like blood clots and myocarditis are associated with certain vaccines, these are far less common and severe than the risks of COVID-19 infection itself, which can lead to significant COVID-related heart issues, including post-COVID heart attack. Vitamin C and ozone therapy do not counteract vaccine effects, and the heart does not weaken broadly due to vaccination. We hope this fact-check helps alleviate fears about COVID and heart attack risks and provides clear, evidence-based information. Trust reliable sources like the WHO or CDC for accurate health guidance to make informed decisions.
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