2018—2020年珠海市学校流感样病例暴发疫情流行特征及影响因素分析  

Epidemic characteristics and influencing factors of influenza-like illness outbreaks in schools in Zhuhai City,from 2018 to 2020

作　　者：陈龙[1] 萧松建[1] 张雪宝[1] 阮峰[1] CHEN Long;XIAO Song-jian;ZHANG Xue-bao;RUAN Feng(Zhuhai Center for Disease Control and Prevention,Zhuhai 519000,Guangdong,China)

机构地区：[1]广东省珠海市疾病预防控制中心,广东珠海519000

出　　处：《中国校医》2022年第5期321-323,335,共4页Chinese Journal of School Doctor

基　　金：珠海市医学科研基金项目(ZH3310200037PJL)。

摘　　要：目的分析珠海市2018—2020年学校流感样病例暴发疫情的流行特征和影响疫情规模的相关因素,为制定防控策略提供依据。方法采用描述流行病学方法分析学校流感样病例暴发疫情流行特征,采用χ^(2)检验和Logistic回归分析疫情规模的影响因素。结果2018—2020年珠海市学校累计报告67起流感样病例暴发疫情,累计发病人数1746例。发病高峰为每年3月—6月和12月—次年1月,主要发生在小学,流感样病例的发病年龄高峰为6~8岁。病原体主要为B型、A(H3N2)亚型和A(H1N1)亚型流感病毒。暴发疫情涉及病例咽痛发生率>50%的学校发生大规模流感样病例暴发疫情的风险是咽痛发生率≤50%学校的4.308倍(95%CI:1.100~16.864)。结论2018—2020年珠海市学校流感样病例暴发疫情主要集中在冬春季节的小学,高咽痛发生率是学校发生大规模疫情流感样病例暴发疫情的危险因素。Objective To investigate and analyze the epidemiological characteristics and scale related factors of influenza-like illness(ILI)outbreaks in schools of Zhuhai City from 2018 to 2020,so as to provide an evidence for formulating the strategy of prevention and control.Methods The descriptive epidemiological analysis was used to analyze the epidemiological characteristics of ILI outbreaks in schools of Zhuhai City from 2018 to 2020,and c2 test and Logistic regression analysis were used to analyze the related factors.Results A total of 67 ILI outbreaks were reported in Zhuhai City from 2018 to 2020,and 1746 patients were involved.The peak of ILI outbreaks was from March to June and December to January of the following year.The most of ILI outbreaks occurred in primary schools.The peak of age of the patients who were involved in the ILI outbreaks was 6-8 years old.The pathogens were mainly type B,A(H3N2)and A(H1N1)influenza viruses.The risk of large-scale ILI outbreaks in schools with a pharyngalgia incidence>50%was 4.308 times higher than that in schools with a pharyngalgia incidence≤50%(95%CI:1.100-16.864).Conclusion The ILI outbreaks in Zhuhai City from 2018 to 2020 mainly occurred in primary schools in winter and spring,and the high incidence of pharyngalgia was a risk factor for the large-scale ILI outbreaks in schools.

关 键 词：流感 暴发疫情 流行特征 

分 类 号：R183.3[医药卫生—流行病学]