title: Effectiveness of immunization against paralytic poliomyelitis in Nigeria.
mesh_terms: D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D005243:Feces / Q000821:virology; D005260:Female; D006801:Humans; D007223:Infant; D016015:Logistic Models; D008297:Male; D009549:Nigeria / Q000453:epidemiology; D011051:Poliomyelitis / Q000453:epidemiology / Q000276:immunology / Q000517:prevention & control*; D017955:Poliovirus / Q000145:classification / Q000302:isolation & purification*; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage / Q000276:immunology*; D014611:Vaccination / Q000706:statistics & numerical data
chemical_list: D011055:Poliovirus Vaccine, Oral