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Iltovirus
	Transmission electron micrograph of Gallid alphaherpesvirus 1 virions
Virus classification
(unranked):	Virus
Realm:	Duplodnaviria
Kingdom:	Heunggongvirae
Phylum:	Peploviricota
Class:	Herviviricetes
Order:	Herpesvirales
Family:	Orthoherpesviridae
Subfamily:	Alphaherpesvirinae
Genus:	Iltovirus
Species
	See text

Iltovirus is a genus of viruses in the order Herpesvirales, in the family Herpesviridae, in the subfamily Alphaherpesvirinae. Birds, galliform birds, psittacine birds, chickens, turkeys, and quail serve as natural hosts. There are only two species in this genus. Diseases associated with this genus include: acute respiratory diseases: gaHV-1: infectious laryngotracheitis; psHV-1: Pacheco's disease.^[1]^[2]

Species

The genus consists of the following two species:^[2]

Structure

Viruses in Iltovirus are enveloped, with icosahedral, spherical to pleomorphic, and round geometries, and T=16 symmetry. The diameter is around 120-200 nm. Genomes are linear and non-segmented, around 150kb in length.^[1]

Genus	Structure	Symmetry	Capsid	Genomic arrangement	Genomic segmentation
Iltovirus	Spherical pleomorphic	T=16	Enveloped	Linear	Monopartite

Life cycle

Viral replication is nuclear, and is lysogenic. Entry into the host cell is achieved by attachment of the viral gB, gC, gD and gH proteins to host receptors, which mediates endocytosis. Replication follows the dsDNA bidirectional replication model. DNA-templated transcription, with some alternative splicing mechanism is the method of transcription. The virus exits the host cell by nuclear egress, and budding. Birds, galliform birds, psittacine birds, chickens, turkeys, and quail serve as the natural host. Transmission routes are contact, contamination, and air borne particles.^[1]

Genus	Host details	Tissue tropism	Entry details	Release details	Replication site	Assembly site	Transmission
Iltovirus	Birds: galliform: psittacine	None	Cell receptor endocytosis	Budding	Nucleus	Nucleus	Oral-fecal; aerosol

References

^ ^a ^b ^c "Viral Zone". ExPASy. Retrieved 15 June 2015.
^ ^a ^b "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 10 May 2021.