bidensovirus
bidnavirus
betapapillomavirus
betaretrovirus
porprismacovirus
ssDNA
betanodavirus
alfamovirus
alphaherpesvirus
solendovirus
marnavirus
protoparvovirus
mardivirus
betaherpesvirus
prymnesiovirus
cuevavirus
aquabirnavirus
bocaparvovirus
megrivirus
suipoxvirus
betasatellite
prasinovirus
sea star-associated densovirus
pasivirus
foveavirus
pelarspovirus
podovirus
teschovirus
levivirus
ambidensovirus
raphidovirus
nanovirus
phaeovirus
betapartitivirus
varicellovirus
deltabaculovirus
gammapapillomavirus
carmovirus
nebovirus
smacovirus
fraservirus
amdovirus
orthohepadnavirus
turncurtovirus
avibirnavirus
deltaretrovirus
velarivirus
lagovirus
genomovirus
quadrivirus