''Avisivirus'' is a genus of

viruses A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Viruses are found in almo ...

in the order '' Picornavirales'', in the family '' Picornaviridae''. Turkey and chickens serve as natural hosts. There are three species in this genus.

Taxonomy

The genus contains the following species, listed by scientific name and followed by the exemplar virus of the species: * ''Avisivirus aturki''; Avisivirus A1 * ''Avisivirus begallu''; Avisivirus B1, also called Chicken picornavirus 2 * ''Avisivirus cechici''; Avisivirus C1, also called Chicken picornavirus 3

Structure

Viruses in ''Avisivirus'' are non-enveloped, with icosahedral, spherical, and round geometries, and T=pseudo3 symmetry. The diameter is around 30 nm. Genomes are linear and non-segmented, around 7.5kb in length.

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment of the virus to host receptors, which mediates endocytosis. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription is the method of transcription. Translation takes place by ribosomal skipping. The virus exits the host cell by lysis, and viroporins. Turkey and chickens serve as the natural host.

References

External links

Viralzone: Avisivirus

ICTV
{{Taxonbar, from=Q18814425 Picornaviridae Virus genera