| berne virus | no rank | viruses and viroids | viruses | no rank | 11156 |
| cardiovirus a | species | | | species | 1821749 |
| encephalomyocarditis virus | no rank | viruses and viroids | viruses | no rank | 12104 |
| encephalomyocarditis virus type 2 | species | | | species | 1214956 |
| ljungan virus | species | viruses and viroids | viruses | species | 172314 |
| murine norovirus | no rank | viruses and viroids | viruses | no rank | 357231 |
| murine norovirus 1 | no rank | viruses and viroids | viruses | no rank | 223997 |
| norwalk virus | species | viruses and viroids | viruses | species | 11983 |
| rabbit hemorrhagic disease virus | species | viruses and viroids | viruses | species | 11976 |
| rodent coronavirus | species | | | species | 2050018 |