| HTLV-II | Human T cell leukemia virus type II |
|---|---|
| HTLV-I | Human T cell leukemia-lymphoma virus type I |
| HTLV-I | Human T-cell lymphoma/leukemia virus type I |
| HTLV-III/LAV | human T cell lymphotropic virus type III/lymphadenopathy associated virus |
| HTLV-I | Human T cell leukemia virus I |