Polio vaccination campaign starts in Yemen.
Ahmad
Khabir
K
D002675:Child, Preschool; D006801:Humans; D017589:Immunization Programs; D007223:Infant; D007231:Infant, Newborn; D032541:Mass Vaccination; D011051:Poliomyelitis / Q000517:prevention & control*; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage*; D015006:Yemen / Q000453:epidemiology
D011055:Poliovirus Vaccine, Oral