title: [Status of herd immunity to poliomyelitis in children in the Moscow region].
abstract: The paper presents the results of 3-year observations of the status of herd immunity to poliomyelitis in 7 towns of the Moscow region. In individual years antibody for poliomyelitis virus of 3 types was found in 63-74% of the examined children and from 2.7 to 7.5% of children were triple-negative. Insufficient levels of herd immunity to poliovirus types I and III were found. Some factors are analysed which could have some influence on the decline of herd immunity.
mesh_terms: D000293:Adolescent; D000914:Antibodies, Viral / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D011051:Poliomyelitis / Q000276:immunology* / Q000517:prevention & control; D011054:Poliovirus Vaccine, Inactivated; D012426:Russia; D014611:Vaccination
chemical_list: D000914:Antibodies, Viral; D011054:Poliovirus Vaccine, Inactivated
vernacular_title: Sostoianie kollektivnogo immuniteta k poliomielitu u deteĭ v Moskovskoĭ oblasti