Apparently, this question is now under scientific investigation. But, if so, why was there no discovery of this in animal models, and even in the trials? Could it be due to Operation Warp Speed, the desire by Trump to be “father of the vaccine,” to get a quick fix for a problem that should have been dealt with by alternative strategies? Really, while most vaccine critics zero in on Fauci and Big Pharma, there is a mountain of responsibility here that needs to be plastered on Trump. But, the Covid vax critical movement is very pro-Trump still, as they see, rightly so, the Biden regime as pure Satanic, so Trump gets away with it. He had the resources as president to expose the whole plandemic, but did not, and continues to support it, indicating he is part of the Covid New World Order.
https://www.infowars.com/posts/covid-vaccine-link-to-myocarditis-probed-by-investigators/