Laboratory surveillance for wild and  vaccine-derived polioviruses, January  2006-June 2007.
D006801:Humans; D007753:Laboratories; D011051:Poliomyelitis / Q000517:prevention & control; D017955:Poliovirus / Q000302:isolation & purification; D011055:Poliovirus Vaccine, Oral / Q000302:isolation & purification; D023321:Poliovirus Vaccines
D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines