Viiruste jaotus
deltaretrovirus MTLV-1 (in.T-rakulise lümfooni v)
G. epsilonretrovirus wall-eye dermal sarcoma virus
G. Lentivirus HIV-1
HIV-2
SIV
CAEV (caprine arthritis encephalit)
FIV (feline immunodeficiency v)
G. spumavirus
Tsirkulaarse dsRNA genoomiga viirused: Pararetroviirused
Ph: Hepadnaviridae G. Orthohepadnavirus HBV (Hepatiit B)
WHV (woodchuck hepatis v)
GSHV (ground squirrel hepatis v)
G. Avihepadnavirus DHBV (duck hepatis virus)
HHBV (heron hepatis virus)
Ph:Caulimoviridae G