There are no more doubts! Dozens and dozens of medical studies published in the most authoritative scientific journals in the world (even those that initially defended the efficacy and safety of Covid vaccines) confirm that the heart and the immune system are the main target-organs of adverse reactions from mRNA genetic serums (or less widespread mDNA).
In September 2023, the European Medicines Agency (EMA, the European Unions drug regulatory body), was forced to admit a correlation between Covid vaccines and lethal myocarditis (inflammation of the middle wall of the heart muscle) or pericarditis (inflammation of the external cardiac membrane).