Acquired immunodeficiency syndrome aids is a chronic potentially life threatening condition caused by the human immunodeficiency virus hiv by damaging your immune system hiv interferes with your bodys ability to fight infection and disease hiv is a sexually transmitted infection sti it can also be spread by contact with infected . Aids acquired immune deficiency syndrome is the final and most serious stage of hiv disease which causes severe damage to the immune system the centers for disease control has defined aids as beginning when a person with hiv infection has a cd4 cell also called t cell a type of immune cell count below 200. Aids stands for acquired immunodeficiency syndrome aids is an advanced stage of infection with the human immunodeficiency virus hiv usually spreads from person to person through contact with infected sexual secretions or blood people with aids have weakened immune systems that make them vulnerable to medical conditions and infections for people infected with hiv the risk of
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