title: Improvement of methods for intratypic differentiation of polioviruses. I. Agar gel diffusion precipitation test with repeated addition of antigens for differentiation between wild and vaccine polioviruses type 1 and 2.
mesh_terms: D000362:Agar; D000818:Animals; D000956:Antigens, Viral / Q000032:analysis; D002460:Cell Line; D000882:Haplorhini / Q000276:immunology; D006367:HeLa Cells; D006801:Humans; D007106:Immune Sera; D005779:Immunodiffusion / Q000379:methods*; D007668:Kidney; D017955:Poliovirus / Q000145:classification* / Q000276:immunology; D011054:Poliovirus Vaccine, Inactivated; D011817:Rabbits / Q000276:immunology
chemical_list: D000956:Antigens, Viral; D007106:Immune Sera; D011054:Poliovirus Vaccine, Inactivated; D000362:Agar