title: Is there a need of "catch-up' polio vaccination in preadolescence?
mesh_terms: D000293:Adolescent; D000910:Antibodies, Heterophile / Q000032:analysis; D000914:Antibodies, Viral / Q000032:analysis; D002648:Child; D002675:Child, Preschool; D006801:Humans; D011051:Poliomyelitis / Q000517:prevention & control; D017955:Poliovirus / Q000276:immunology; D011055:Poliovirus Vaccine, Oral / Q000627:therapeutic use*
chemical_list: D000910:Antibodies, Heterophile; D000914:Antibodies, Viral; D011055:Poliovirus Vaccine, Oral