title: Saudi Arabia requires people aged under 15 years travelling from polio-affected countries to be immunized against the disease.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*; D017955:Poliovirus / Q000276:immunology*; D023321:Poliovirus Vaccines / Q000008:administration & dosage*; D012529:Saudi Arabia; D014195:Travel / Q000331:legislation & jurisprudence*; D014611:Vaccination / Q000331:legislation & jurisprudence*; D014944:World Health Organization
chemical_list: D023321:Poliovirus Vaccines