title: Progress towards poliomyelitis eradication in Afghanistan and Pakistan, January 2003 to May 2004.
mesh_terms: D000293:Adolescent; D000346:Afghanistan / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D003140:Communicable Disease Control / Q000379:methods*; D006801:Humans; D017589:Immunization Programs / Q000379:methods*; D007115:Immunization Schedule; D007223:Infant; D010154:Pakistan / Q000453:epidemiology; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage*; D018571:Sentinel Surveillance; D014480:United Nations
chemical_list: D011055:Poliovirus Vaccine, Oral