Taxonomy:

Taxonomic structure of the family.

• Subfamily Alphaherpesvirinae, Genera : Simplexvirus, Varicellovirus
• Subfamily Betaherpesvirinae, Genera : Cytomegalovirus, Muromegalovirus, Roseolovirus
• Subfamily Gammaherpesvirinae, Genera : Lymphocryptovirus, Rhadinovirus
• Unclassified viruses: 48 known.
  
  

Virus infects vertebrates.

Virions contain one molecule of linear double stranded DNA. Total genome length is 120000-220000 nt. Guanine + cytosine ratio 35-75 %.

Virions enveloped; slightly pleomorphic; spherical; 120-200 nm in diameter. Surface projections of envelope distinct; spikes; dispersed evenly over all the surface. Nucleocapsids isometric. Nucleocapsid surrounded by the tegument that consists of globular material which is frequently asymmetrically distributed and may be variable in amount. Nucleocapsids sometimes penetrated by stain (although intact env

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