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The genus is distinguished on the basis of genetic characters.
No details are available on the morphology of the virions.
Genome (Woo et al., 2010): c. 7,640–7,678 nt (5′-UTR: 636–646 nt; ORF: 6,765–6,774 nt; 3′-UTR: 238–256 nt). The location of the cre has not been identified.
The deduced polyprotein is of 2,255–2,258 aa. The genome encodes a L protein. 1AB remains uncleaved (with myristoylation signal). 2A protein has unknown function.
Viral RNA was detected in faeces of the oriental magpie robin (Copsychus saularis) and the grey-backed thrush (Turdus hortulorum).
Osci-: from Oscines (songbirds) from the Latin oscen, 'a songbird'
There is only a single species in the genus. Oscivirus A includes two genetic virus types classified by means of phylogenetic clustering.
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