Screening of children's sera for antibodies to polioviruses.
D000906:Antibodies / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008403:Mass Screening; D011051:Poliomyelitis / Q000517:prevention & control*; D011055:Poliovirus Vaccine, Oral; D006113:United Kingdom
D000906:Antibodies; D011055:Poliovirus Vaccine, Oral