HIV

**Definition:** Human immunodeficiency virus. A non-taxonomic and historical term referring to any of two species, specifically HIV-1 and/or HIV-2. Prior to 1986, this was called human T-lymphotropic virus type III/lymphadenopathy-associated virus (HTLV-III/LAV). From 1986-1990, it was an official species called HIV. Since 1991, HIV was no longer considered an official species name; the two species were designated HIV-1 and HIV-2.

**Tree numbers:** - B04.820.650.589.650.350

**Synonyms:** - HTLV-III - Human Immunodeficiency Virus - Immunodeficiency Virus, Human - Immunodeficiency Viruses, Human - Virus, Human Immunodeficiency - Viruses, Human Immunodeficiency - Human Immunodeficiency Viruses - Human T Cell Lymphotropic Virus Type III - Human T-Cell Lymphotropic Virus Type III - Human T-Cell Leukemia Virus Type III - LAV-HTLV-III - Lymphadenopathy-Associated Virus - Human T Lymphotropic Virus Type III - Human T-Lymphotropic Virus Type III - AIDS Virus - Acquired Immune Deficiency Syndrome Virus - Acquired Immunodeficiency Syndrome Virus