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Virus classification
Group: Group I (dsDNA)
Order: Herpesvirales
Family: Malacoherpesviridae
Davison et al., 2009[1]

The Malacoherpesviridae are a family of DNA viruses that cause diseases in molluscs.

The family name Malacoherpesviridae is derived from Greek word 'μαλακός (malacos) meaning 'soft' and from Greek word 'μαλάκιον (malakion) meaning 'mollusc.[1]

Within this family two species have been described: Ostreid herpesvirus 1 in 2009 [1] and Haliotid herpesvirus 1 in 2010.[2]

Malacoherpesviridae may have the ability to infect across species, a feature not typically observed in vertebrate herpesviruses. This ability appears to be restricted to related mollusc species.[2]


Acute viral necrosis virus, which affects scallops such as Chlamys farreri, appears to be a variant of ostreid herpesvirus 1.[3]

Only Ostreavirus is (as of the most recent 2012 issuance of its MasterSpecies List) officially recognized by the International Committee on Taxonomy of Viruses (ICTV).


This article incorporates CC-BY-2.0 text from the reference [2]

  1. ^ a b c d e Davison, Andrew J.; Eberle, Richard; Ehlers, Bernhard; Hayward, Gary S.; McGeoch, Duncan J.; Minson, Anthony C.; Pellett, Philip E.; Roizman, Bernard et al. (2008). "The order Herpesvirales". Archives of Virology 154 (1): 171–7. doi:10.1007/s00705-008-0278-4. PMC 3552636. PMID 19066710. 
  2. ^ a b c d e Savin, Keith W; Cocks, Benjamin G; Wong, Frank; Sawbridge, Tim; Cogan, Noel; Savage, David; Warner, Simone (2010). "A neurotropic herpesvirus infecting the gastropod, abalone, shares ancestry with oyster herpesvirus and a herpesvirus associated with the amphioxus genome". Virology Journal 7: 308. doi:10.1186/1743-422X-7-308. PMC 2994540. PMID 21062506. 
  3. ^ Ren W, Chen H, Renault T, Cai Y, Bai C, Wang C, Huang J (2013) Complete genome sequence of acute viral necrosis virus associated with massive mortality outbreaks in the Chinese scallop, Chlamys farreri" Virol J 10(1) 110

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