Cultivation of a virus associated with S.M.O.N. in chorioallantoic membranes of embryonated hen's eggs.
D000818:Animals; D002493:Central Nervous System Diseases; D002642:Chick Embryo; D005321:Extraembryonic Membranes; D006564:Herpesviridae / Q000302:isolation & purification*; D006566:Herpesviridae Infections; D051379:Mice; D009902:Optic Neuritis / Q000209:etiology*; D014776:Virus Cultivation