the root (no rank)
Viruses (domain)
ssRNA positive-strand viruses, no DNA stage (subkingdom)
Caliciviridae (family)
[hide inferior taxa]
Calicivirus (genus)
calicivirus CV23-OH (species)
calicivirus NB (species)
Lagovirus (genus)
Newbury agent 1 (species)
Norovirus (genus)
Sapovirus (genus)
Vesivirus (genus)