The Covid-19 virus is now known to target an enzyme that is highly expressed by the cardiac cells that comprise the heart.
Covid-19 targets the angiotensin-converting enzyme 2 (ACE2) receptor as a means of infiltrating body cells. The ACE2 enzyme is utilised by many organs, but perhaps most concerning is its high expression in the heart.
In cases in which Covid-19 successfully spreads to the heart, it can cause a vast array of damage, from necrosis of cardiac cells, to acute or protracted heart failure. Furthermore these symptoms are not limited to severe cases of Covid-19, with signs of cardiac damage even presenting in those who experienced mild to no symptoms traditional symptoms.