In a new study from the Centers for Disease Control and Prevention, researchers found COVID-19 increases the risk of developing myocarditis (heart inflammation) much more than COVID-19 vaccination.
Heart inflammation has previously been linked to the Pfizer and Moderna COVID-19 vaccines themselves, particularly among adolescent boys and young men.
But the current finding suggests that the risk is far higher after infection with COVID-19.
In the study, the team analyzed hospital records from 1.5 million patients with COVID and 35 million without, to see what percentage had heart inflammation, and stratified them by age and sex.
They found overall, heart inflammation was uncommon among persons with and without COVID-19; however, COVID-19 was strongly linked to an increased risk for inflammation, with risk varying by age group.
The increased risk among COVID-19 patients was most pronounced in people under 16, who saw a 37-fold increased risk of heart inflammation compared to people of that age group who did not have the coronavirus.
This was followed by over-75s, 65 to 74-year-olds, and 50 to 64-year-olds.
The team says it might be related to viral infection of the heart, or, in under 16s, it could be related to the multi-system inflammatory syndrome.
A recent study published in the New England Journal of Medicine showed that messenger RNA vaccines increased the risk of myocarditis three-fold.
The researchers suggest that the benefits of COVID-19 vaccination outweigh the risks of vaccine-caused heart inflammation, even in the most at-risk group.
If you care about COVID, please read studies about vitamin D and COVID-19: What you need to know and findings of the key to suppressing COVID-19.
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