Epidemiological characteristics of pertussis in Inner Mongolia Autonomous Region from 2019 to 2024
Zhou Yu
Bai Guohui
Zhu Zhen
Chen Ying
Tian Xiaoling
Abstract：Objective To understand the epidemiological characteristics of pertussis in Inner Mongolia Autonomous Region from 2019 to 2024,and provide evidence for the prevention and control of pertussis in Inner Mongolia Autonomous Region.Methods Using descriptive epidemiological and spatio-temporal analysis methods,an analysis and study was conducted on the incidence of pertussis and the vaccination status of pertussis vaccine in Inner Mongolia Autonomous Region from 2019 to 2024.Results From 2019 to 2024,a total of 5 161 cases of pertussis were reported in Inner Mongolia Autonomous Region,with an average annual incidence rate of 3.58 per 100 000.The incidence rate showed an upward trend;it was more prevalent in spring and summer(accounting for 60.56%);the incidence rate was the highest in Ordos City(17.60 per 100 000);the cases were mainly concentrated in the≤1-year-old group(74.21 per 100 000,accounting for 18.41%)and the 5-9-year-old group(41.71 per 100 000,accounting for 57.42%).After analyzing the immunization history of cases with pertussis components vaccines,it was found that 45.45%of those aged 3-12 months had not received the vaccine,but 80.03%of the cases in the 5-9-year-old group had completed the full course of immunization.Spatial-temporal scanning analysis revealed that the high incidence clusters occurred in the central and western regions of Inner Mongolia,including Ordos City,Hohhot City,and Baian'ao'er City,with log-likelihood ratios of 4 573.34,644.64,and 321.60 respectively from 2019 to 2024.Conclusion From 2019 to 2024,the reported incidence of pertussis in Inner Mongolia Autonomous Region showed a generally upward trend.The reported incidence had certain differences in terms of time and region.The affected population was mainly children under 1 year old and those aged 5 to 9.This suggests that the timeliness of pertussis-containing vaccine inoculation should be strengthened,and the pertussis vaccine immunization program in China should be adjusted in a timely manner according to the incidence of pertussis.
Keywords：pertussisincidence of diseasevaccines containing pertussis
Publication Date：2025-12-30
Online Publishing Date：2025-12-30(First online date of this platform, not the publication date of the document)
Pages：6( 611-615,621 )