title: Change from oral poliovirus vaccine to inactivated poliovirus vaccine.
authors.forename: Alfonso
authors.initials: A
authors.lastname: Mele
authors.forename: Tom
authors.initials: T
authors.lastname: Jefferson
authors.forename: Elisabetta
authors.initials: E
authors.lastname: Franco
authors.forename: Stefania
authors.initials: S
authors.lastname: Salmaso
mesh_terms: D002648:Child; D002675:Child, Preschool; D006801:Humans; D007115:Immunization Schedule; D007223:Infant; D011051:Poliomyelitis / Q000517:prevention & control* / Q000635:transmission; D011054:Poliovirus Vaccine, Inactivated / Q000008:administration & dosage* / Q000009:adverse effects; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage / Q000009:adverse effects; D012307:Risk Factors
chemical_list: D011054:Poliovirus Vaccine, Inactivated; D011055:Poliovirus Vaccine, Oral