OCCUPATION AND HEALTH ›› 2026, Vol. 42 ›› Issue (6): 782-786.

• Treatise • Previous Articles     Next Articles

Analysis of the epidemiological characteristics of pertussis in Heze City from 2019 to 2023

FENG Can1, MENG Xiaoming1(), MA Jingcang1, TAO Zexin2   

  1. 1 Heze Center for Disease Control and PreventionHezeShandong 274000, China
    2 Shandong Center for Disease Control and PreventionJinanShandong 250000, China
  • Received:2025-04-06 Revised:2025-04-15 Online:2026-03-15 Published:2026-04-03
  • Contact: MENG Xiaoming

Abstract:

Objective To analyze the epidemiological characteristics of pertussis in Heze City of Shandong Province from 2019 to 2023,and provide scientific basis for making pertussis prevention and controlling plans and improving immunization strategy in Heze City. Methods The data of reported pertussis cases in Heze City from 2019 to 2023 were collected through the Chinese Disease Prevention and Control Information System and Heze Pertussis Case Database,so as to analyze the epidemiological characteristics of pertussis in Heze City. Results There were 550 pertussis cases reported in Heze City from 2019 to 2023,with an average annual incidence of 1.26/100 000,and the annual incidence ranged from 0.17/100 000 to 2.25/100 000.There was a statistically significant difference in the incidence of different years(P<0.05),the incidence was relatively high in 2019,relatively low in 2020,and increased from 2021 to 2022.The incidence of pertussis with seasonal characteristic chiefly occurred in the annual July to August.These cases of pertussis prevailed in 10 counties and districts of Heze City,and concentrated in Caoxian County,Chengwu County and Mudan District,with a total proportion of 58.36%.The incidence ranged from 0.29/100 000 to 3.83/100 000 in each county,and the incidence of each county and district was statistically significant(P<0.05).Infants under 6 months had a high proportion,accounted for 24.55%. Conclusion The reported incidence of pertussis in Heze City from 2019 to 2023 was lower than the national average level from 2018 to 2022.The incidence of pertussis decreased rapidly on the whole and then rebounded.There were regional distribution differences of the incidence in various counties and districts of Heze City,and the incidence population was mainly scattered children.Thus,it is urgent to continuously improve the coverage rate of children's pertussis vaccine,reinforce the monitoring sensitivity and diagnostic ability of medical institutions,and optimize the pertussis immunization strategy in Heze City in accordance with the requirements of the national immunization programme.

Key words: Pertussis, Epidemiological characteristics, Immunization strategy

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