"In patients with vaccine-associated myocarditis, elevated levels of spike protein were detected in their blood and on myocardial tissue. Studies in animal models and ex vivo human samples show a connection between myocarditis and the activation of specific immune pathways [...] triggered by mRNA COVID-19 vaccines."
From: "Conclusions by Causal Category", page 6 in the PDF version available as free download
From: "Conclusions by Causal Category", page 6 in the PDF version available as free download