AIDS and Its Causes In June 1981, the centers for The Disease Control of the United States reported that five young homosexual men in the Los Angels area had contracted Pneumocystis Carinii pneumonia( a kind of pneumonia that is particularly found in AIDS patient). 2 of the patients had died. This report signalled the begninning of an epidemic of a viral disease characterized by immunosuppression associated with opportunistic infection( an infection caused by a microrganism that does not normally produce disease in human; it occurs in persons with abnomality functioning immune system), secondary neoplasms( any abnormal growth of new tissue, benign o