[A checking-up survey of 2 counties of north part of Guangdong Province concerning the eradication of poliomyelitis].
D000293:Adolescent; D000914:Antibodies, Viral / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D002681:China; D006801:Humans; D007223:Infant; D008403:Mass Screening; D011051:Poliomyelitis / Q000517:prevention & control*; D011055:Poliovirus Vaccine, Oral / Q000276:immunology
D000914:Antibodies, Viral; D011055:Poliovirus Vaccine, Oral