title: AIDS virus lurks past undetected stage.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000188:drug therapy / Q000635:transmission / Q000821:virology*; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D008297:Male; D011533:Proviruses; D012661:Semen / Q000821:virology*; D012725:Sexual Behavior; D014621:Vagina / Q000821:virology