| Definition: |
A Human immunodeficiency virus infectious disease that results_in reduction in the numbers of CD4-bearing helper T cells below 200 per microliter of blood or 14% of all lymphocytes thereby rendering the subject highly vulnerable to life-threatening infections and cancers, has_material_basis_in Human immunodeficiency virus 1 (Lentivirus humimdef1) or Human immunodeficiency virus 2 (Lentivirus humimdef2), which are transmitted_by sexual contact, transmitted_by transfer of blood, semen, vaginal fluid, pre-ejaculate, or breast milk, transmitted_by congenital method, and transmitted_by contaminated needles. Opportunistic infections are common in people with AIDS. |