mandrilline betaherpesvirus 1 mandrilline betaherpesvirus 1 mandrilline betaherpesvirus 1 (mleucmv) is a species of virus in the genus cytomegalovirus, subfamily betaherpesvirinae, family herpesviridae, and order herpesvirales. mandrilline betaherpesvirus 1 virus classification (unranked): virus realm: duplodnaviria kingdom: heunggongvirae phylum: peploviricota class: herviviricetes order: herpesvirales family: herpesviridae genus: cytomegalovirus species: mandrilline betaherpesvirus 1