What are the symptoms and causes of acute myocarditis?

The most probable cause of acute myocarditis is a viral infection, especially parvovirus B19.
Other causes of myocarditis include autoimmune disease, drug hypersensitivity, and Chagas disease.
The symptoms of acute myocarditis include fever, rash, myalgia, arthralgia, fatigue, dyspnea, angina, and syncope.
The diagnosis of acute myocarditis is confirmed by elevated levels of cardiac injury markers, echocardiogram, and cardiac magnetic resonance imaging.