title: Progress towards poliomyelitis eradication, southern Africa, 2001--March 2002.
mesh_terms: D000353:Africa, Southern / Q000453:epidemiology; D002568:Certification; D003264:Containment of Biohazards; D006801:Humans; D017589:Immunization Programs / Q000458:organization & administration*; D007753:Laboratories / Q000592:standards; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*; D017955:Poliovirus / Q000302:isolation & purification / Q000472:pathogenicity; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage; D011159:Population Surveillance; D014944:World Health Organization
chemical_list: D011055:Poliovirus Vaccine, Oral