Subfamily: Betaherpesvirinae

Genus: Muromegalovirus

Distinguishing features

The predicted amino acid sequences of members form a distinct lineage within the subfamily (Figure 1.Betaherpesvirinae). 

Virion

See discussion under family description. 

Genome organization and replication

See discussion under family and subfamily properties. 

Biology

Members have murids (mice and rats) as hosts. As with members of the genus Cytomegalovirus, infected cells become cytomegalic.

Species demarcation criteria

See discussion under family description.