[ON THE VIABILITY AND RESISTANCE OF VACCINAL STRAINS OF POLIOVIRUSES IN THE EXTERNAL ENVIRONMENT].
D007106:Immune Sera; D009500:Neutralization Tests; D017955:Poliovirus; D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines; D012106:Research; D012107:Research Design; D046509:Tissue Culture Techniques; D014612:Vaccines; D014774:Virulence; D014776:Virus Cultivation
D007106:Immune Sera; D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines; D014612:Vaccines
EXPERIMENTAL LAB STUDY; IMMUNE SERUMS; NEUTRALIZATION TESTS; POLIOVIRUS VACCINE; POLIOVIRUS VACCINE, ORAL; TISSUE CULTURE; VIRULENCE; VIRUS CULTIVATION
O VYZHIVAEMOSTI I USTO ICHIVOSTI VAKTSINNYKH SHTAMMOV VIRUSA POLIOMIELITA VO VNESHNE I SREDE.