title: From the Centers for Disease Control and Prevention. Importation of wild poliovirus into Qinghai Province--China, 1999.
mesh_terms: D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D006801:Humans; D017589:Immunization Programs; D007223:Infant; D008297:Male; D011051:Poliomyelitis / Q000175:diagnosis / Q000453:epidemiology* / Q000517:prevention & control; D017955:Poliovirus / Q000302:isolation & purification; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage
chemical_list: D011055:Poliovirus Vaccine, Oral