Biotechnology Encyclopedia Cytomegalovirus Cytomegalovirus Virus classification Group: Group I ( dsDNA ) Family: Herpesviridae Genus: Cytomegalovirus Species see text Cytomegalovirus (CMV), is a genus of Herpes viruses ; in humans the species is known as Human herpesvirus 5 (HHV-5). It belongs to the Betaherpesvirinae subfamily of Herpesviridae . The name means