Systematic Review of COVID-19 and COVID-19 mRNA Vaccine Myocarditis in Athletes: Incidence, Diagnosis, Prognosis, and Return-to-Play Principles.

Objective: The purpose of this systematic review is to evaluate the original peer-reviewed studies on athletes who developed myocarditis after coronavirus disease (COVID-19) infection or after COVID-19 mRNA vaccination. Both entities likely have an immunologic component. We discuss elite, professional, college, and adolescent athletes.