Hunting down the last of the poliovirus.
Schlein
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D002648:Child; D002675:Child, Preschool; D017281:Cost of Illness; D003365:Costs and Cost Analysis; D006801:Humans; D011051:Poliomyelitis / Q000191:economics / Q000453:epidemiology / Q000517:prevention & control*; D011055:Poliovirus Vaccine, Oral / Q000009:adverse effects / Q000191:economics; D014944:World Health Organization
D011055:Poliovirus Vaccine, Oral