| MDV | Marek disease virus; mean dye [bolus] velocity; mucosal disease virus |
|---|---|
| MLV | Moloney leukemia virus; multilaminar vesicle; murine leukemia virus |
| MSV | maximum sustained level of ventilation; mean scale value; mean spatial velocity; Moloney sarcoma vir... |
| MTV | mammary tumor virus; metatarsus varus; mouse mammary tumor virus |
| RSV | respiratory syncytial virus; right subclavian vein; Rous sarcoma virus |