This is a very unusual situation in that the video had been on YouTube for almost 18 months and received over 18,000 views.
Here is a study about vaccination and myocarditis.
Maybe you know it already ?
Autopsy-based histopathological characterization of myocarditis after anti-SARS-CoV-2-vaccination
Constantin Schwab, Lisa Maria Domke, …Peter Schirmacher
https://link.springer.com/article/10.1007/s00392-022-02129-5
Here is a study about vaccination and myocarditis.
Maybe you know it already ?
Autopsy-based histopathological characterization of myocarditis after anti-SARS-CoV-2-vaccination
Constantin Schwab, Lisa Maria Domke, …Peter Schirmacher
https://link.springer.com/article/10.1007/s00392-022-02129-5