Inadequate poliovirus immunity levels in immunized Illinois children.
D000367:Age Factors; D000914:Antibodies, Viral / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007087:Illinois; D007115:Immunization Schedule; D007223:Infant; D008297:Male; D008457:Measles / Q000276:immunology; D009500:Neutralization Tests; D011051:Poliomyelitis / Q000276:immunology*; D011055:Poliovirus Vaccine, Oral / Q000592:standards; D012189:Retrospective Studies; D012409:Rubella / Q000276:immunology; D014611:Vaccination
D000914:Antibodies, Viral; D011055:Poliovirus Vaccine, Oral