Surveillance and analysis of adverse events following immunization in Heping District of Tianjin City from 2012 to 2022

Abstract

Abstract: Objective To analyze the occurrence characteristics and monitoring system indicators of adverse events following immunization（AEFI） in Heping District of Tianjin City from 2012 to 2022,understand the occurrence pattern of AEFI,evaluate the sensitivity of AEFI monitoring in Heping District of Tianjin City,and provide guidance for monitoring work. Methods The descriptive epidemiological methods were used to analyze the case data of AEFI in Heping District of Tianjin City from 2012 to 2022 exported from the AEFI reporting module of the China disease prevention and control information system. Results From 2012 to 2022,232 cases of AEFI were reported in Heping District,with a reported incidence of 28.72/100 000,showing a fluctuating downward trend. The cases occurred mainly at first dose of vaccine,with a total of 123 cases,accounting for 53.02%. The male-to-female ratio was 1.23∶1. The group under 2 years old reported the highest number of cases,with children <1 year old accounting for 37.07% and the 1 year old group accounting for 31.90%.The summer and autumn seasons had the highest number of cases,accounting for 35.78% and 28.02% respectively.The reaction occurred mainly within 1 day after vaccination,accounting for 81.47%. The reaction type was mainly general reaction,accounting for 80.17%. The main symptoms of abnormal reactions were various allergic rashes,accounting for 76.92%.The vaccines with a higher incidence rate included vaccines related to measles,DPT（youth）,23 valent pneumonia vaccine. Conclusion The AEFI monitoring system in Heping District of Tianjin City runs well,but the sensitivity of the monitoring is insufficient,and it is necessary to strengthen training,supervision,and enhance reporting awareness,standardize the screening of vaccination taboos,accurately implement vaccination,strengthen post vaccination notification,strictly implement the 30 minute observation system after vaccination,eliminate vaccination errors,reduce coincidence,and focus on improving the monitoring sensitivity of adult vaccination clinic.

Key words: Vaccination, Vaccine, Adverse events following immunization, Surveillance

CLC Number:

R186

YU Shuang, LI Sifan, SONG Lili, LI Xiaojing. Surveillance and analysis of adverse events following immunization in Heping District of Tianjin City from 2012 to 2022. [J]OCCUPATION AND HEALTH, 2024, 40(12): 1692-1696.

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