This paper has been submitted to and passed peer review, for publication in a medical journal. However, after that process, I withdrew it from consideration, due to the current accelerating aggression toward and censorship of vaccine criticism in the US. Therefore, I am posting it on Substack, so that I alone receive any criticism directed against this paper or myself. Abstract This paper addresses the question of prevalence of COVID vaccine-associated myocarditis, as well as known mechanisms of spike protein-induced myocarditis, considering the epidemiological consequences of mass vaccination with spike protein-generating COVID vaccines, such as are being deployed throughout the...