Progress toward eradicating poliomyelitis from the Americas.
D002489:Central America; D006801:Humans; D007223:Infant; D008800:Mexico; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control* / Q000635:transmission; D017955:Poliovirus / Q000302:isolation & purification; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage; D011159:Population Surveillance; D013020:South America; D013997:Time Factors
D011055:Poliovirus Vaccine, Oral