<unk>  is a viral genus of the Picornaviridae family.  Viruses belonging to the<unk>  genus have been isolated in horses with acute upper febrile respiratory disease. The structure of the<unk>  virion is icosahedral, having a diameter of 27-30nm.
Erbovirus
Arbovirus
Echovirus
Enterovirus
Coronavirus
Parechovirus
Varicosavirus
Ophiovirus