hippotragine gammaherpesvirus 1 hippotragine gammaherpesvirus 1 hippotragine gammaherpesvirus 1 (hihv-1) is a species of virus in the genus macavirus, subfamily gammaherpesvirinae, family herpesviridae, and order herpesvirales. hippotragine gammaherpesvirus 1 virus classification (unranked): virus realm: duplodnaviria kingdom: heunggongvirae phylum: peploviricota class: herviviricetes order: herpesvirales family: herpesviridae genus: macavirus species: hippotragine gammaherpesvirus 1