cercopithecine betaherpesvirus 5 cercopithecine betaherpesvirus 5 cercopithecine betaherpesvirus 5 (cehv-5) is a species of virus in the genus cytomegalovirus, subfamily betaherpesvirinae, family herpesviridae, and order herpesvirales. cercopithecine betaherpesvirus 5 virus classification (unranked): virus realm: duplodnaviria kingdom: heunggongvirae phylum: peploviricota class: herviviricetes order: herpesvirales family: herpesviridae genus: cytomegalovirus species: cercopithecine betaherpesvirus 5 african green monkeys (chlorocebus spp.) serve as natural hosts.