HIV/AIDS - Description, Causes, Statistics

HIV/AIDS is an epidemic that affects both men and women of all ages. It has an impact on many people's lives either by themselves being infected, knowing someone who is infected, or being a health care worker. HIV is a virus that attacks the body's immune system. It also affects the blood cells (lymphocytes) and cells of the organs (bone marrow, spleen, liver, and lymph glands). It affects the lungs, central nervous system and gastrointestinal system. People begin with having the HIV virus. An HIV infected person is likely to stay fit and well for a long time.
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