Polio--is this the last chance for eradication?
D000349:Africa / Q000453:epidemiology; D002675:Child, Preschool; D004196:Disease Outbreaks; D006801:Humans; D017589:Immunization Programs / Q000458:organization & administration* / Q000706:statistics & numerical data; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*