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Vaccines and myocarditis

Updated: Aug 8, 2023

The topic of myocarditis risk linked to Covid vaccines has seized the nation's attention, prompting us to delve deeper into understanding. Myocarditis, a straightforward term for inflammation of the heart muscles, isn't a newcomer introduced by vaccines. It has existed as long as hearts have rhythmically beat within our bodies. Even before the pandemic era, this condition touched 0.02% of the global population – a mere 22 in every 100,000 individuals. Let's shine a closer light on myocarditis:

🫀 Who's at Risk?

While anyone can be affected, myocarditis does display a slight preference for young and middle-aged men.

🫀 What Triggers Myocarditis?

Causes are diverse – viruses, bacteria, fungi, parasites, drugs, vaccines, and, intriguingly, our immune system turning against our own heart muscles (also known as autoimmune disease).

🫀 Symptoms to Watch:

Fatigue, muscle aches, fever, chest pain, shortness of breath, and a rapid heartbeat.

🫀 Serious Implications:

Serious complications could include heart failure (affecting around 30% of those impacted, with variations in duration), unstable heart rhythms, and, in a tiny fraction (<5%), sudden death.

🫀 How Rare is Death from Myocarditis?

Exceedingly rare – just 0.16 patients per 100,000 patient-years.

🫀 Navigating Prevention:

If symptoms like chest pain, shortness of breath, or rapid heartbeat emerge, medical attention is a must. Also, consider avoiding competitive sports for a minimum of three months.

Now, for the million-dollar question: Does the Covid vaccine heighten the risk of contracting this condition?

Let's comb through the reported incidences of myocarditis post m RNA Covid vaccination:

For males aged 12-29: 4.6 cases per 100,000.

For males aged 30 and above: 0.24 cases per 100,000.

For females aged 12-29: 0.42 cases per 100,000.

For females aged 30 and above: 0.1 cases per 100,000.

Significantly, no deaths were reported, and most cases were self-limiting.

While the incidence appears slightly higher among younger males, an argument can be made regarding their relatively lower risk of severe Covid complications, potentially suggesting that the vaccine's benefits might not overshadow the risk.

Let's explore the validity of this notion. Examining the risk of Covid-related complications in this group, for instance:

In males aged 12-29, 100,000 Covid vaccine doses could prevent 56 hospitalizations, 13.8 ICU admissions, and 0.6 deaths.

Keep in mind, Covid infection itself can also lead to myocarditis, with reported incidents ranging from 0% to 7.6%, averaging at 2.3% based on various studies.

The dilemma lies before you: vaccine or virus? Your thoughts and comments are most welcome.

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