what is myocarditis ?
What is myocarditis? Myocarditis is an inflammation of the heart muscle. Myocardium is the muscle of the heart, and â-itisâ means inflammation. Myocarditis occurs when a virus (or, more rarely, a bacteria or fungus) infects the body, and one of the places that it attacks is the heart. Myocarditis can also be caused by an adverse reaction to certain medicines, such as chemotherapy drugs, and exposure to some chemicals.