murid betaherpesvirus 3 murid betaherpesvirus 3 murid betaherpesvirus 3 (muhv-3) is a species of virus in the genus roseolovirus, subfamily betaherpesvirinae, family herpesviridae, and order herpesvirales. murid betaherpesvirus 3 virus classification (unranked): virus realm: duplodnaviria kingdom: heunggongvirae phylum: peploviricota class: herviviricetes order: herpesvirales family: herpesviridae genus: roseolovirus species: murid betaherpesvirus 3