Acquired Immunodeficiency Syndrome

An acquired defect of cellular immunity associated with infection by the human immunodeficiency virus (HIV), a CD4-positive T-lymphocyte count under 200 cells/microliter or less than 14% of total lymphocytes, and increased susceptibility to opportunistic infections and malignant neoplasms. Clinical manifestations also include emaciation (wasting) and dementia. These elements reflect criteria for AIDS as defined by the CDC in 1993.

Also Known As:

AIDS; Acquired Immune Deficiency Syndrome; Acquired Immuno-Deficiency Syndrome; Acquired Immuno Deficiency Syndrome; Acquired Immuno-Deficiency Syndromes; Acquired Immunodeficiency Syndromes; Immuno-Deficiency Syndrome, Acquired; Immuno-Deficiency Syndromes, Acquired; Immunodeficiency Syndromes, Acquired; Syndrome, Acquired Immuno-Deficiency; Syndrome, Acquired Immunodeficiency; Syndromes, Acquired Immuno-Deficiency; Syndromes, Acquired Immunodeficiency; Immunodeficiency Syndrome, Acquired; Immunologic Deficiency Syndrome, Acquired

Infections: 526564
- Virus Diseases: 41777
  - RNA Virus Infections: 303
    - Retroviridae Infections: 332
      - Lentivirus Infections: 239
        HIV Infections: 25254
        Acquired Immunodeficiency Syndrome: 43330
  - Viral Sexually Transmitted Diseases: 13
    - HIV Infections: 25254
      - Acquired Immunodeficiency Syndrome: 43330
  - Slow Virus Diseases: 9
    - Acquired Immunodeficiency Syndrome: 43330
- Communicable Diseases: 25324
  - Sexually Transmitted Diseases: 11501
    - Viral Sexually Transmitted Diseases: 13
      - HIV Infections: 25254
        Acquired Immunodeficiency Syndrome: 43330
  - Blood-Borne Infections: 257
    - HIV Infections: 25254
      - Acquired Immunodeficiency Syndrome: 43330
- Sexually Transmitted Diseases: 11501
  - Viral Sexually Transmitted Diseases: 13
    - HIV Infections: 25254
      - Acquired Immunodeficiency Syndrome: 43330
Urogenital Diseases: 126
- Genital Diseases: 114
  - Sexually Transmitted Diseases: 11501
    - Viral Sexually Transmitted Diseases: 13
      - HIV Infections: 25254
        Acquired Immunodeficiency Syndrome: 43330
Immune System Diseases: 4321
- Immunologic Deficiency Syndromes: 91
  - HIV Infections: 25254
    - Acquired Immunodeficiency Syndrome: 43330

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