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| image_caption =
| virus_group = i
| ordo = ''[[Herpesvirales]]''
| familia = ''[[Herpesviridae]]''
| subfamilia = ''[[Alphaherpesvirinae]]''
| genus = '''''Varicellovirus'''''
| type_species = ''[[Human herpesvirus 3]]''
}}
'''Varicellovirus''' (var′i-sel′ō-vi′rŭs) is a genus ofbelong to subfamily ''[[Alphaherpesvirinae]]'', a member of family ''[[Herpesviridae]]''.
 
The varicellovirus genus contains several closely related viruses, including [[Varicella zoster virus]] (human herpesvirus 3), the causative agent of chickenpox in humans, and [[Pseudorabies]] virus (Suid herpesvirus 1), the causative agent of Aujeszky's disease.
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== Morphology ==
 
As with other [[Alphaherpesvirinae|Alpha-herpesvirusesalphaherpesviruses]], the virus particle has a layered structure: Virions consist of an [[envelope]], a [[viral tegument|tegument]], a [[nucleocapsid]], and a core. [[viral tegument|Tegument]] is disordered; they do not display a structure and proteins in variable amounts are arranged sometimes in an asymmetric layer located between envelope and capsid. The viral capsid is contained within a spherical envelope which is 120-200 nm in diameter. Surface projections on envelope (viral [[Receptor (biochemistry)|receptors]]) are densely dispersed and contain small spikes that evenly dot the surface.
 
The capsid/nucleocapsid is round and exhibits [[icosahedron|icosahedral]] symmetry. The capsid is isometric and has a diameter of 100-110&nbsp;nm. The capsid consists of 162 capsomer proteins with a hexagonal base and a hole running halfway down the long axis. The core consists of a fibrillar spool on which the DNA is wrapped. The end of the fibers are anchored to the underside of the capsid shell.<ref>ICTVdB - The Universal Virus Database, version 4. http://www.ncbi.nlm.nih.gov/ICTVdb/ICTVdB/</ref>
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