title: Letter: Antibodies to poliovirus.
mesh_terms: D000914:Antibodies, Viral / Q000032:analysis*; D002648:Child; D006801:Humans; D007109:Immunity; D007115:Immunization Schedule; D011051:Poliomyelitis / Q000276:immunology*; D011055:Poliovirus Vaccine, Oral
chemical_list: D000914:Antibodies, Viral; D011055:Poliovirus Vaccine, Oral