title: Laboratory surveillance   for wild and vaccine-derived   polioviruses,   January 2007-June 2008.
mesh_terms: D006801:Humans; D007753:Laboratories; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control; D017955:Poliovirus / Q000302:isolation & purification*; D011055:Poliovirus Vaccine, Oral / Q000302:isolation & purification; D023321:Poliovirus Vaccines; D011159:Population Surveillance
chemical_list: D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines