Risk of Myopericarditis Not Higher After COVID-19 Vaccination

Maria Weiß

April 27, 2022

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This article was originally published in German on Coliquio.

Researchers have raised concerns about a potentially increased risk of myopericarditis in connection with COVID-19 vaccination, but new data provide an all-clear signal. A meta-analysis of 22 studies has revealed that the rate of myopericarditis is no higher after COVID-19 vaccination as after other common vaccinations and that it may be lower in some cases.

For their analysis, Ryan Ruiyang Ling, MBBS, a student at the Yong Loo Lin School of Medicine at the National University of Singapore, and his team evaluated data from four international databases. In addition to COVID-19 vaccinations (n = 395 million, 300 million of which are mRNA vaccines), they examined data for vaccinations against smallpox (n = 2.9 million), influenza (n = 1.5 million), and other infectious diseases (n = 5.5 million) that were administered between January 1947 and December 2021.

The total incidence of myopericarditis per million COVID-19 vaccinations was 18 cases. This was significantly lower than for the other vaccines, for which there was an average of 56 cases/million vaccine doses. At 132 cases/million vaccine doses, smallpox vaccination was determined to have the highest risk.

For people younger than 30 years (40.9 cases/million vaccine doses) and for men (23 cases/million), the risk of myopericarditis after COVID-19 vaccination was somewhat higher. Also, a somewhat higher risk was noticed in association with mRNA vaccines (22.6 cases/million) and with second vaccinations (31.1 cases/million) in comparison with all COVID-19 vaccinations in the general population. More than 90% of those who developed myocarditis after vaccination with an mRNA vaccine were men whose average age was 25 years.

One limitation of the study was that the analysis included a low proportion of persons younger than 12 years, which calls the transferability of the results for this age group into question. The risk does not seem to be higher for vaccinated people older than 12 years than with other vaccinations, and the benefits of the vaccination far outweigh the risk, the authors say. An explanation for the myocarditis cases, even with other vaccinations, could be a general post-vaccination inflammatory reaction, which in rare cases can affect the heart.

Kommentar zum obigen Artikel aus MEDSCAPE:

Die Häufigkeit von Myocarditis betrug in diesen Studien 18 Fälle pro 1 Million Covid-Impfungen gegenüber durchschnittlich 56 Fällen bei anderen Impfungen. Das Risiko anderer Impfungen lag am höchsten bei  Windpocken-Impfungen mit durchschnittlich 132 Fällen.

So gesehen scheint das durchschnittliche Myocarditis-Risiko von 18 Fällen pro 1 Million  Covid-Impfungen überraschend gering. Wie steht es aber mit dem Risiko-Nutzen-Verhältnis in dieser Hinsicht? Wie gut schützt die Covid-Impfung, wie gut schützen alle übrigen Impfungen gegen den Tod auf dem Sportplatz, wenn diese doch alle unbestreitbar künstliche Todesfälle sind ? - Hierüber sagen diese Statistiken nichts! Ist man also ein Impf-Gegner, wenn man bei dieser relativen, aber leider rein theoretischen  Sicherheit der Covid-Impfungen seinen inneren Frieden nicht findet, angesichts der grotesken Meldungen von Sportlern, die aufällig häüfig auf dem Sportplatz tot zusammenbrechen? - Kommt man da nicht eher auf die Frage: Wieviel schöner wäre die Welt ohne überhaupt jegliche Impfungen? Brauchen wir denn überhaupt diese Impfungen?