It is a picornavirus , the prototypical member of the genus Aphthovirus .
The foot - and - mouth disease virus ( FMDV ) is the pathogen that causes foot - and - mouth disease .
foot - and - mouth disease virus is a pathogen , the prototypical member of the genus Aphthovirus .
The foot - and - mouth disease virus ( FMDV ) is the pathogen that causes foot - and - mouth disease .