HIV / AIDS ““ A perspective
AIDS is caused by the Human immunodeficiency virus (HIV), which damages the body's defense system. People infected with HIV usually live for years without any signs of the disease. They may look and feel healthy, but they can still pass on the virus to others.
HIV is a retrovirus with two primary types: HIV-1 and HIV-2. There are many strains of both types and all mutate rapidly, which has made it particularly difficult for researchers to find an effective vaccine or treatment for the virus. HIV infection is often mostly or entirely asymptomatic