Persistence of poliovirus neutralizing antibodies four years after immunization with live attenuated vaccine.
D000906:Antibodies / Q000032:analysis*; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009500:Neutralization Tests; D011051:Poliomyelitis / Q000276:immunology; D011055:Poliovirus Vaccine, Oral; D013997:Time Factors; D014611:Vaccination
D000906:Antibodies; D011055:Poliovirus Vaccine, Oral