Avian leucosis sarcoma virus (ALSV)
Human T-lymphotropic virus (HTLV)
Avian reticuloendotheliosis virus
Feline leukemia
Feline sarcoma virus
Human immunodeficiency virus (HIV)
Caprine arthritis-encephalitis virus (CAEV)
Rous sarcoma virus
Feline immunodeficiency virus (FIV)
Murine leukemia
Bovine leukemia virus
Meadi-visna virus
Avian myeloblastosis virus
