AIDS refers to the condition in which the patient develops any of 23 designated opportunistic infections: Candidiasis (esophagus, trachea, bronchial tube, and lungs) Cryptococcosis (except for lungs) Pneumocystis pneumonia Coccidioidomycosis (1. the whole body dissemination; 2. occurrences in the areas other than lungs, cervix, and hilar lymph nodes) Histoplasmosis (1. the whole body dissemination; 2. occurrences in the areas other than lungs, cervix, and hilar lymph nodes) Cryptosporidiosis (when diarrhea accompanies for the duration of a month or longer) Cerebral toxoplasmosis (except for infants aged less than a month) Isosporosis (when diarrhea accompanies for the duration of a month or longer) Atypical mycobacteriosis (1. the whole body dissemination 2. occurrences in the areas other than lungs, skin, cervix and, hilar lymph nodes) Purulent bacterial infections (two or more repeated occurrences of any of the following diseases due to purulent bacteria i.e., Haemophilus or Streptococcus: 1. septemia 2. pneumonia 3. meningitis 4. osteoarthritis) within two years in patients younger than 13 Active tuberculosis (pulmonary or extrapulmonary tuberculosis) Salmonella bacillemia (relapsing; expect the ones caused by salmonella typhi) Cytomegalovirus infections (except for an infant aged less than a month, and also except the one caused in the liver, spleen and lymph nodes) Herpes simplex virus infections (1. lasts over a month or longer on mucous membrane 2. skin ulcerations 3. accompanied by bronchitis, pneumonia, and esophagitis, but except for infants aged less than a month) Progressive multifocal leukoencephalopathy (PML) Kaposi's sarcoma Primary CNS lymphoma Non-Hodgkin's lymphoma (based on LSG classifications; 1. large cell immunoblastic 2. Burkitt type), Invasive cervical cancer Repetitive pneumonia Lymphoid interstitial pneumonia/pulmonary lymphoid hyperplasia (LIP/PLH complex, under 13 years old) HIV encephalopathy (dementia or subacute encephalitis) HIV marasmic syndrome (whole body weakness or slim disease)