| endogenous mouse mammary tumor virus mtv1 | no rank | viruses and viroids | viruses | no rank | 114183 |
| exogenous mouse mammary tumor virus | no rank | viruses and viroids | viruses | no rank | 46608 |
| mouse mammary tumor virus | species | viruses and viroids | viruses | species | 11757 |
| mouse mammary tumor virus 17 | no rank | viruses and viroids | viruses | no rank | 160596 |