| alphatron virus | isolate |  |  | isolate | 2755033 | 
| norovirus cat/giv.2/cu081210e/usa/2010 | isolate |  |  | isolate | 1160949 | 
| norovirus cat/gvi.2/te/77-13/ita | no rank |  |  | no rank | 1761663 | 
| norovirus cat/rj1018/bra/2014 | no rank |  |  | no rank | 1580883 | 
| norovirus giv | no rank | viruses and viroids | viruses | no rank | 262897 | 
| norovirus giv.2 | no rank |  |  | no rank | 1160948 | 
| norovirus gvi.1/ca/jpn/2012/m49-1 | no rank |  |  | no rank | 1577715 | 
| norwalk virus | species | viruses and viroids | viruses | species | 11983 |