Poliomyelitis resurfaced.
D002170:Canada; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D011051:Poliomyelitis / Q000382:microbiology / Q000517:prevention & control; D017955:Poliovirus / Q000302:isolation & purification; D011055:Poliovirus Vaccine, Oral / Q000627:therapeutic use; D014481:United States; D014865:Waste Disposal, Fluid; D014871:Water Microbiology
D011055:Poliovirus Vaccine, Oral