| human endogenous retrovirus | species | viruses and viroids | viruses | species | 11827 |
| human immunodeficiency virus 1 | species | viruses and viroids | viruses | species | 11676 |
| human immunodeficiency virus 2 | species | viruses and viroids | viruses | species | 11709 |
| mason-pfizer monkey virus | species | viruses and viroids | viruses | species | 11855 |
| primate t-lymphotropic virus 1 | species | viruses and viroids | viruses | species | 194440 |
| simian foamy virus | species | viruses and viroids | viruses | species | 11642 |
| simian immunodeficiency virus | species | viruses and viroids | viruses | species | 11723 |
| simian immunodeficiency virus - agm | no rank | viruses and viroids | viruses | no rank | 11726 |
| simian immunodeficiency virus sivsun | no rank | viruses and viroids | viruses | no rank | 330887 |
| simian t-lymphotropic virus 1 | no rank | viruses and viroids | viruses | no rank | 33747 |