Genus: Anativirus

Genus: Anativirus

Distinguishing features

The genus is distinguished on the basis of genetic characters. The known anativiruses lack a functional 2A protein.



No details are available on the morphology of the virions.

Nucleic acid

Genome: (Tseng and Tsai 2007) 8226 nt (5'UTR: 425 nt; ORF: 7563 nt; 3'UTR: 238 nt). The location of the cre has not been identified.

Genome organization and replication

Genome layout:


The deduced polyprotein is of 2,521 amino acids. The predicted leader polypeptide of duck picornavirus is the longest known at 451 aa and suspected to be a trypsin-like protease. The L/VP0 cleavage and presence of a potential myristoylation site on VP0 is predicted for duck picornavirus (kQ/GqvqS) The 2A region is largely deleted with a residual 6 aa remaining.


Duck picornavirus was isolated from intestinal tracts of duckling with duck virus hepatitis [Insert citation as above (Tseng and Tsai, 2007) PMID 17686542]. The virus, however, could not produce hemorrhagic lesions in the liver and causes a less fatal disease. 

Derivation of names

Anativirus: from Anatidae, the family of birds that includes ducks, geese and swans.

Species demarcation criteria

There is only a single species in the genus.

Member species

Exemplar isolate of the species
SpeciesVirus nameIsolateAccession numberRefSeq numberAvailable sequenceVirus Abbrev.
Anativirus Aduck picornavirusTW90AAY563023NC_006553Complete genomeAnaV-A
Anativirus Banativirus B1; phacovirusPf-CHK1/phVKT880670Complete genome

Virus names, the choice of exemplar isolates, and virus abbreviations, are not official ICTV designations.

Related, unclassified viruses

Virus name

Accession number

Virus abbreviation

phacovirus [Pf-CHK1/PhV]



quail picornavirus [QPV1/HUN2010]



Virus names and virus abbreviations are not official ICTV designations.