Primate T-lymphotropic virus 1

**Definition:** A species in the family DELTARETROVIRUS comprising strains of different host species but arising from the same geographic origin. They include HUMAN T-LYMPHOTROPIC VIRUS 1 and SIMIAN T-LYMPHOTROPIC VIRUS 1.

**Tree numbers:** - B04.613.807.200.725 - B04.820.650.200.725

**Synonyms:** - T-Lymphotropic Virus 1, Primate - PTLV-1