''Avihepatovirus'' 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.
Since Dmitri Ivanovsky's 1 ...
in the order ''
Picornavirales
''Picornavirales'' is an order of viruses with vertebrate, invertebrate, protist and plant hosts. The name has a dual etymology. First, ''picorna-'' is an acronym for poliovirus, insensitivity to ether, coxsackievirus, orphan virus, rhinovirus, ...
'', in the family ''
Picornaviridae
Picornaviruses are a group of related nonenveloped RNA viruses which infect vertebrates including fish, mammals, and birds. They are viruses that represent a large family of small, positive-sense, single-stranded RNA viruses with a 30 nm i ...
''. Ducks and geese serve as natural hosts. There is only one species in this genus: ''Avihepatovirus A''. Diseases associated with this genus include: fatal hepatitis.
Structure
Viruses in ''Avihepatovirus'' 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 7.7kb in length.
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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. Ducks and geese serve as the natural host. Transmission routes are fecal-oral.[
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See also
* Turkey viral hepatitis
The aetiological agent of turkey viral hepatitis is a virus from the ''Picornaviridae'' family.
The disease is restricted to turkeys and is highly contagious but usually subclinical. It is usually present in young birds under the age of 6 weeks. ...
References
External links
Viralzone: Avihepatovirus
ICTV
{{Taxonbar, from=Q18814423
Picornaviridae
Virus genera