Poliomyelitis: A gap in immunity?
D000914:Antibodies, Viral / Q000032:analysis; D002662:Child Health Services; D002675:Child, Preschool; D006306:Health Surveys; D006801:Humans; D011051:Poliomyelitis / Q000453:epidemiology / Q000276:immunology* / Q000517:prevention & control; D017955:Poliovirus / Q000276:immunology; D011054:Poliovirus Vaccine, Inactivated / Q000008:administration & dosage; D012572:School Health Services; D012959:Socioeconomic Factors
D000914:Antibodies, Viral; D011054:Poliovirus Vaccine, Inactivated