Vaccination with the CHAT strain of type 1 attenuated poliomyelitis virus in Leopoldville. Belgian Congo. 2. Studies of the safety and efficacy of vaccination.
D000906:Antibodies; D002648:Child; D015023:Democratic Republic of the Congo; D058872:Epidemics; D006801:Humans; D011051:Poliomyelitis / Q000276:immunology*; D017955:Poliovirus; D012449:Safety; D014611:Vaccination
D000906:Antibodies
POLIOMYELITIS/immunology