title: Definition of an antigen shared by herpesviruses and oncornaviruses.
mesh_terms: D000956:Antigens, Viral; D002213:Capsid / Q000276:immunology; D000939:Epitopes; D006564:Herpesviridae / Q000276:immunology*; D005779:Immunodiffusion; D012190:Retroviridae / Q000276:immunology*
chemical_list: D000956:Antigens, Viral; D000939:Epitopes