title: Formation of virus particles via enzyme systems and structural proteins induced by another, "assistant" virus.
mesh_terms: D006146:Guanidines; D066298:In Vitro Techniques; D009154:Mutation; D009713:Nucleotidyltransferases / Q000378:metabolism; D017955:Poliovirus; D012367:RNA, Viral; D014764:Viral Proteins / Q000378:metabolism
chemical_list: D006146:Guanidines; D012367:RNA, Viral; D014764:Viral Proteins; D009713:Nucleotidyltransferases