[State of collective immunity against natural smallpox in children in preschool institutions and in school].
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007109:Immunity; D012572:School Health Services; D012899:Smallpox / Q000276:immunology* / Q000517:prevention & control; D012900:Smallpox Vaccine / Q000627:therapeutic use*
D012900:Smallpox Vaccine
Sostoianie kollektivnogo immuniteta protiv natural'noĭ ospy u deteĭ doshkol'nykh uchrezhdeniĭ shkol.