Wikipedia
Erbovirus
Erbovirus is a genus of viruses in the order Picornavirales, in the family Picornaviridae. Horses serve as natural hosts. There is currently only one species in this genus: the type species Erbovirus A. Diseases associated with this genus include: upper respiratory tract disease with viremia and fecal shedding. Viruses belonging to the Erbovirus genus have been isolated in horses with acute upper febrile respiratory disease. The structure of the erbovirus virion is icosahedral, having a diameter of 27-30 nm.