Myocarditis

Inflammation of the myocardium potentially leading to myocyte injury, impaired contractility, arrhythmias, and acute or chronic heart failure. Possible causes are viral infections (adenovirus, influenza, COVID-19, parvovirus B19, EBV, herpes simplex), bacterial infections (staphylococcus, streptococcus, diphtheria, Lyme disease), parasitic/fungal infections (Trypanosoma cruzi), toxins (cocaine, amphetamine, heavy metals, carbon monoxide, chemotherapy, vaccines), or autoimmune disease (SLE, sarcoidosis).