The
definition of AIDS has changed over the years. Currently,
an AIDS diagnosis (indicating that the person has reached
the late stages of the disease) is given to people with
HIV who have counts below 200 CD4+ cells/mm3 (also known
as T cells or T4 cells, which are the main target of HIV)
or when they become diagnosed with at least one of the following
diseases: Pneumocystis Carinii Pneumonia (PCP), Kaposi's
Sarcoma (KS), HIV Wasting Syndrome, Non-Hodgkin's lymphoma,
Cryptococcosis, extrapulmonary HIV encephalopathy (AIDS
dementia), Mycobacterium, Avium Intracellulare (MAC or MAI),
Candidiasis of the esophagus, trachea, bronqui, or lungs,
Cryptosporidiosis, chronic intestinal Tuberculosis, Herpes
Simplex virus infection
Progressive
Multiphocal Leukoencephalopathy (PML), Primary lymphoma
of the brain, Toxoplasmosis of the brain, Histoplasmosis,
Isoporidiasis, chronic intestinal, Coccidioidomycosis, Salmonella
septicemia, Bacterial infections, recurrent, <13 years
Lymphoid
intersticial pneumonia/pulmonary lymphoid hyperplasia, <13
years, Recurrent bacterial pneumonia (two or more episodes
in one year) or Invasive cervical cancer.