Myocarditis is an inflammatory disease of the heart muscle (myocardium) that can result from a variety of causes. While most cases are produced by a viral infection, an inflammation of the heart muscle may also be instigated by toxins, drugs, and hypersensitive immune reactions.nflammation of the muscular walls of the heart. inflammation of the myocardium, the muscle of the heart, usually the result of viral infection (especially Coxsackie), sometimes during or after bacterial and other infections.
1 HIV is a virus that destroys your immune system. 2  AIDS is a condition that is caused by HIV. It is considered the final stage of HIV.  Symptoms for HIV and AIDs are different for each person, because the symptoms of each condition come from opportunistic infections.
HIV/AIDS. About HIV/AIDS. HIV is a virus spread through certain body fluids that attacks the bodyâs immune system, specifically the CD4 cells, often called T cells. Over time, HIV can destroy so many of these cells that the body canât fight off infections and disease. These special cells help the immune system fight off infections.