Subfamily: Equarterivirinae

Genus: Alphaarterivirus

Distinguishing features

Members of this genus infect horses or donkeys. Infections range from asymptomatic to severe. The equine arteritis virus genome is the shortest in the family. 

Virion

See discussion under family description. 

Genome organization and replication

See discussion under family description. 

Biology

See discussion under family description. 

Derivation of names

Species Alphaarterivirus equid: from the genus name and equid, horses being the host of viruses in this genus. 

Species demarcation criteria

There is only one species in the genus. See “Subfamily, genus and species demarcation criteria” section on the family for species demarcation criteria which are universal for all subfamilies.