From the Centers for Disease Control and Prevention. Progress toward poliomyelitis eradication--Democratic Republic of Congo, 1996-1999.
D002675:Child, Preschool; D015023:Democratic Republic of the Congo / Q000453:epidemiology; D006801:Humans; D017589:Immunization Programs / Q000706:statistics & numerical data; D007223:Infant; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*; D011055:Poliovirus Vaccine, Oral; D011159:Population Surveillance
D011055:Poliovirus Vaccine, Oral