AcquiredImmuneDeficiencysyndrome(AIDS),THESECONDAFFILIATEDHOSPITAL,CQUMSZHOUZHI周智,Definition,AIDSisafatalchronicinfectiousdiseasecausedbytheHumanImmunodeficiencyVirus(HIV),transmittedmainlythroughsexualcontactsandbodyfluids,characterizedpathologicallybyselectivedepletionofhelperT(CD4+)lymphocytesandimpairmentofcell-mediatedimmunity,andclinicallybysevereopportunisticinfectionsandmalignancies.,Classification:HIV-1andHIV-2,belongtofamilyRetroviridae,subfamilyLentivirus,andwerediscoveredin1983and19
