title: Studies on new attenuated strains of type III live poliomyelitis vaccine. II. Field trials of Zhong III2 virus.
mesh_terms: D000818:Animals; D002648:Child; D002675:Child, Preschool; D002986:Clinical Trials as Topic; D000882:Haplorhini; D006801:Humans; D007223:Infant; D011051:Poliomyelitis / Q000517:prevention & control*; D017955:Poliovirus / Q000472:pathogenicity; D011055:Poliovirus Vaccine, Oral / Q000009:adverse effects / Q000592:standards*; D014613:Vaccines, Attenuated
chemical_list: D011055:Poliovirus Vaccine, Oral; D014613:Vaccines, Attenuated