Bovine gammaherpesvirus 6

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Bovine gammaherpesvirus 6

Bovine gammaherpesvirus 6 (BoGHV-6) is a member of the Herpesviridae family, specifically classified under the subfamily Gammaherpesvirinae. This virus is known to infect cattle and is part of the broader group of gammaherpesviruses that can establish latent infections in their hosts.

Taxonomy and Classification

Bovine gammaherpesvirus 6 belongs to the genus Macavirus within the subfamily Gammaherpesvirinae. The Herpesviridae family is divided into three subfamilies: Alphaherpesvirinae, Betaherpesvirinae, and Gammaherpesvirinae, with BoGHV-6 being part of the latter.

Genome Structure

The genome of BoGHV-6 is a linear double-stranded DNA molecule, typical of herpesviruses. It encodes a variety of proteins that are involved in viral replication, immune evasion, and latency. The genome organization is similar to other gammaherpesviruses, with conserved gene blocks interspersed with unique regions.

Pathogenesis

BoGHV-6 primarily infects B lymphocytes, similar to other gammaherpesviruses. The virus can establish a latent infection in these cells, allowing it to persist in the host for extended periods. Reactivation of the virus can occur under certain conditions, such as stress or immunosuppression, leading to active viral replication and potential disease.

Clinical Significance

While BoGHV-6 is not typically associated with severe disease in cattle, it can contribute to immunosuppression and may play a role in the pathogenesis of other infections. The virus's ability to establish latency and reactivate makes it a subject of interest in veterinary virology.

Diagnosis

Diagnosis of BoGHV-6 infection can be achieved through polymerase chain reaction (PCR) assays that detect viral DNA. Serological tests may also be used to identify antibodies against the virus, indicating exposure or infection.

Prevention and Control

Currently, there are no specific vaccines available for BoGHV-6. Control measures focus on maintaining good herd health and minimizing stress to reduce the risk of viral reactivation and transmission.

Also see


Herpesviridae
Herpesviridae virion
Herpesviridae virion
Taxonomy
Kingdom Virus
Order Herpesvirales
Family Herpesviridae
Genera
Notable Species
Related Topics



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Contributors: Prab R. Tumpati, MD