[Appropriate vaccine prevention still irreplaceable. Risk of polio infections not banished].
D003906:Developing Countries; D019353:Endemic Diseases; D006801:Humans; D007115:Immunization Schedule; D011051:Poliomyelitis / Q000517:prevention & control* / Q000635:transmission; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage* / Q000009:adverse effects; D014195:Travel
D011055:Poliovirus Vaccine, Oral