Israeli study of almost 200,000 Covid positive cases and 600,000 non positive control cases, all before vaccines were introduced, concluded that Covid infection was not associated with increased myocarditis and pericarditis.
Post COVID-19 infection was not associated with either myocarditis (aHR 1.08; 95% CI 0.45 to 2.56) or pericarditis (aHR 0.53; 95% CI 0.25 to 1.13). We did not observe an increased incidence of neither pericarditis nor myocarditis in adult patients recovering from COVID-19 infection.
In other words, the Covid vaccines deserve a special place for causing heart damage. Even the Novavax vaccine may be associated with heart inflammation.