[Surveillance of rural measles following scheduled immunization].
D000293:Adolescent; D000914:Antibodies, Viral / Q000032:analysis; D002648:Child; D002675:Child, Preschool; D002681:China; D006801:Humans; D007114:Immunization; D007223:Infant; D008457:Measles / Q000453:epidemiology* / Q000276:immunology / Q000517:prevention & control; D012423:Rural Health
D000914:Antibodies, Viral