macacine alphaherpesvirus 2 macacine alphaherpesvirus 2 macacine alphaherpesvirus 2 (mchv-2) is a species of virus in the genus simplexvirus, subfamily alphaherpesvirinae, family herpesviridae, and order herpesvirales. macacine alphaherpesvirus 2 virus classification (unranked): virus realm: duplodnaviria kingdom: heunggongvirae phylum: peploviricota class: herviviricetes order: herpesvirales family: herpesviridae genus: simplexvirus species: macacine alphaherpesvirus 2