[viruses]
   Realm Riboviria
     Order Picornavirales
       Family Picornaviridae
         Genus Kobuvirus
           1 Aichivirus Aᵀ
           2 Aichivirus B
           3 Aichivirus C
           4 Aichivirus D
           5 Aichivirus E
           6 Aichivirus F