The aim of this cross-sectional study was to determine the immunity status of children to pertussis by socio-demographic characteristics in Eastern Turkey. The study sample consisted of 840 randomly selected and healthy children aged 0-71 months. The seroprevalence of pertussis was 30.1%. Age, parent education and economic status were not associated with the geometric mean titers (GMT) of pertussis antibody, while gender, residential area and the application number of diphtheria-tetanus-whole-cell pertussis vaccine were associated with GMT. Most preschool children are susceptible to pertussis and current vaccination efforts do not provide adequate immunization.
Antibody Formation Child, Preschool