Introduction Cases of myocarditis and pericarditis have been reported in diverse parts of the world since vaccination against the new coronavirus began with messenger RNA (mRNA) vaccines, mainly those produced by Pfizer-BioNTech. The pathophysiology of this vaccine-induced pathology is not yet fully understood, but it may be related to the active component of the vaccine (the mRNA sequence that encodes the SARS-CoV-2 spike protein) or to the immune system response that is triggered after vaccination . What is known so […]