Status of field trials with an orally administered, live attenuated poliovirus vaccine.
D030015:Enterovirus C, Human; D006801:Humans; D011051:Poliomyelitis / Q000276:immunology*; D017955:Poliovirus; D023321:Poliovirus Vaccines; D014613:Vaccines, Attenuated
D023321:Poliovirus Vaccines; D014613:Vaccines, Attenuated
POLIOMYELITIS/immunology