Epidemiological characteristics and development trends of public health emergencies in Yongchuan District of Chongqing Municipality from 2005 to 2022

Jiang Xuefei; Wang Ya; Zhang Xiaoyan; Zeng Fanna; Wu Huan

doi:10.11986/j.issn.1673-873X.2024.04.005

Abstract：Objective To analyze the epidemiological characteristics and development trends of public health emergencies in Yongchuan District of Chongqing Municipality from 2005 to 2022,providing scientific evidence for improving prevention and control measures.Methods The information on public health emergencies in Yongchuan district from January 2005 to De-cember 2022 was collected from the public health emergency management information system and field epidemiological in-vestigation report.And the epidemic characteristics were analyzed.WPS Office and EPi info 7.0 software were used for data screening and statistical analysis.Results A total of 121 public health emergencies were reported in Yongchuan district from 2005 to 2022,with 4864 reported cases and 3 deaths.Major events occurred in 2 (1.65％),general events in 45 (37.19％),and ungraded events in 74 (61.16％).There was a significant difference in the proportion of events reaching grade between different periods (x2=24.142,P<0.001),with 62.96％ of events reaching grade from 2005 to 2009,which was higher than the proportion of events reaching grade from 2010 to 2019 (48.33％) and the proportion of events reaching grade from 2020 to 2022 (2.94％).Infectious disease events were the most common (119,98.35％);infectious disease e-vents were mainly other types of infectious diseases,such as varicella (61,50.41％);poisoning events occurred in 1,other public health events occurred in 1,and were not reported after 2010,accounting for a relatively low proportion.The number of reported events showed two peaks:April to June and September to November.Events were predominantly reported in ur-ban areas (66,54.55％).The main place of occurrence was school (106,87.60％),4,320 cases occurred,accounting for 88.82％;the main place of occurrence in school was elementary school (75,70.75％).Respiratory infectious diseases were predominant (107,88.43％).The event onset scale was 24 (17,40) cases,duration 20.29 (6.92,43.75) days,and disposi-tion time 11.13 (2.31,27.93) days.Conclusion Public health emergencies in the Yongchuan district occur from time to time,and ungraded incidents show an increasing trend annually,mainly infectious disease incidents.Schools remain the fo-cus of prevention and control of public health emergencies.