The results of the serological study of 2,352 children aged 1-6 years who had arrived to the territory of the region without any documents on past immunization revealed that most of these children had sufficiently pronounced specific immunity to diphtheria (66.4%) and tetanus (83.6%) Thus the tactics of the prophylactic immunization of children having no relevant documents must be worked out with due regard to the results of serological studies.

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Russia human epidemiology statistics Clostridium tetani Humans preschool child Diphtheria-Tetanus-Pertussis Vaccine Infant Child, Preschool immunology Article Corynebacterium diphtheriae blood migration bacterium antibody diphtheria pertussis tetanus vaccine Antibodies, Bacterial Transients and Migrants immunization Seroepidemiologic Studies diphtheria tetanus Russian Federation Child