| Equine herpesvirus 2 | |
|---|---|
| Virus classification | |
| Group: | Group I (dsDNA) | 
| Family: | Herpesviridae | 
| Subfamily: | Gammaherpesvirinae | 
| Genus: | Rhadinovirus | 
| Species: | Equine herpesvirus 2 (EHV-2) | 
Equine herpesvirus 2 (EHV-2) is a virus of the family Herpesviridae, originally known as equine cytomegalovirus due to its slow replication in tissue culture. However, complete sequencing of the EHV-2 genome has demonstrated that it is a member of the subfamily Gammaherpesvirinae, in the genus Rhadinovirus. It has an uncertain role in respiratory disease in horses, but EHV-2 has been isolated from cases exhibiting symptoms such as coughing, conjunctivitis, and swollen submaxillary and parotid lymph nodes.