2014-2016年北京市朝阳区流感聚集性疫情流行特征及影响因素分析
发布时间：2018-12-12 22:06
【摘要】：目的分析2014-2016年北京市朝阳区流感聚集性疫情的流行特征,为流感聚集性疫情防控提供科学依据。方法收集北京市朝阳区2014年9月1日-2016年8月31日报告的流感聚集性疫情资料,分析流感聚集性疫情的流行病学特征和疫情持续时间、罹患率的影响因素。结果 2014-2016年北京市朝阳区共报告79起流感聚集性疫情,累计发病1 067人,平均罹患率为35.0%。秋冬季疫情高发,流感聚集性疫情均发生在10月-次年4月。小学和托幼机构是疫情的高发场所,共报告65起(82.3%)。2014-2015年度流感聚集性疫情以A(H3N2)亚型流感病毒为主,占97.1%(34/35)。2015-2016年度以B(Victoria系)流感病毒为主,占79.5%(35/44)。流感聚集性疫情的罹患率与发生疫情场所平均人口数(P0.05)有关,持续时间与疫情报告的时间间隔有关(P0.001)结论流感聚集性疫情具有明显的季节性,小学和托幼机构是高发场所。尽早报告疫情是控制流感聚集性疫情的关键因素。
[Abstract]:Objective to analyze the epidemic characteristics of influenza agglomeration in Chaoyang District of Beijing from 2014 to 2016, and to provide scientific basis for the prevention and control of influenza agglomeration. Methods collected the data of influenza cluster epidemic reported from September 1, 2014 to August 31, 2016 in Chaoyang District, Beijing, and analyzed the epidemiological characteristics, duration and the influencing factors of attack rate. Results A total of 79 influenza outbreaks were reported in Chaoyang District of Beijing from 2014 to 2016, with a cumulative incidence of 1,067 people and an average attack rate of 35.0 cases. Autumn and winter outbreaks are high, influenza outbreaks are concentrated in October-April of the following year. Primary schools and child-care institutions are the high risk sites for the epidemic, with 65 cases (82.3%) reported. In 2014-2015, influenza A (H3N2) subtype influenza viruses were the dominant type of influenza outbreaks. 97.1% (34 / 35). In 2015-2016, B (Victoria was the predominant influenza virus, accounting for 79.5% (35 / 44). The attack rate of influenza aggregated epidemic was related to the average population of the epidemic site (P0.05), and the duration was related to the time interval of epidemic report (P0.001). Conclusion Influenza clustering epidemic has obvious seasonality. Primary schools and childcare institutions are high risk places. Early reporting of the epidemic is a key factor in the control of influenza agglomeration.
【作者单位】： 北京市朝阳区疾病预防控制中心;
【分类号】：R181.3;R511.7
[Abstract]:Objective to analyze the epidemic characteristics of influenza agglomeration in Chaoyang District of Beijing from 2014 to 2016, and to provide scientific basis for the prevention and control of influenza agglomeration. Methods collected the data of influenza cluster epidemic reported from September 1, 2014 to August 31, 2016 in Chaoyang District, Beijing, and analyzed the epidemiological characteristics, duration and the influencing factors of attack rate. Results A total of 79 influenza outbreaks were reported in Chaoyang District of Beijing from 2014 to 2016, with a cumulative incidence of 1,067 people and an average attack rate of 35.0 cases. Autumn and winter outbreaks are high, influenza outbreaks are concentrated in October-April of the following year. Primary schools and child-care institutions are the high risk sites for the epidemic, with 65 cases (82.3%) reported. In 2014-2015, influenza A (H3N2) subtype influenza viruses were the dominant type of influenza outbreaks. 97.1% (34 / 35). In 2015-2016, B (Victoria was the predominant influenza virus, accounting for 79.5% (35 / 44). The attack rate of influenza aggregated epidemic was related to the average population of the epidemic site (P0.05), and the duration was related to the time interval of epidemic report (P0.001). Conclusion Influenza clustering epidemic has obvious seasonality. Primary schools and childcare institutions are high risk places. Early reporting of the epidemic is a key factor in the control of influenza agglomeration.
【作者单位】： 北京市朝阳区疾病预防控制中心;
【分类号】：R181.3;R511.7
【参考文献】
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