Small-scale trial with Sabin attenuated type 1 poliovirus vaccine in a semi-closed community.
D006801:Humans; D011051:Poliomyelitis / Q000276:immunology*; D017955:Poliovirus; D023321:Poliovirus Vaccines; D012111:Residence Characteristics; D014612:Vaccines
D023321:Poliovirus Vaccines; D014612:Vaccines
POLIOMYELITIS/immunology