title: Tracking progress towards global polio eradication, 2011 – 2012.
mesh_terms: D002648:Child; D060740:Disease Eradication; D004784:Environmental Monitoring; D014943:Global Health; D006801:Humans; D007753:Laboratories / Q000592:standards; D009123:Muscle Hypotonia / Q000453:epidemiology / Q000517:prevention & control; D010243:Paralysis / Q000453:epidemiology / Q000517:prevention & control; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control* / Q000821:virology; D017955:Poliovirus / Q000302:isolation & purification; D011159:Population Surveillance