title: Progress towards interrupting wild poliovirus transmission, January 2006-May 2007.
mesh_terms: D000346:Afghanistan / Q000453:epidemiology; D014943:Global Health; D006801:Humans; D007194:India / Q000453:epidemiology; D009549:Nigeria / Q000453:epidemiology; D010154:Pakistan / Q000453:epidemiology; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control* / Q000821:virology; D017955:Poliovirus; D011055:Poliovirus Vaccine, Oral; D011159:Population Surveillance
chemical_list: D011055:Poliovirus Vaccine, Oral