2013-2016年浙江省杭州市萧山区人感染H7N9禽流感病例流行病学特征分析

发布时间：2018-03-23 12:15

本文选题：人感染HN禽流感　切入点：流行病学特点　出处：《中国人兽共患病学报》2017年03期

【摘要】：目的分析浙江省杭州市萧山区2013-2016年人感染H7N9禽流感病例的流行病学特征。方法收集现住址位于萧山区的人感染H7N9禽流感确诊病例流行病学资料,通过SPSS 16.0软件,采用t检验、χ2检验、秩和检验等方法分析死亡和存活病例的流行病学特征;同时分析外环境监测结果的流行病学特征。结果 2013-2016年萧山区共确诊22例人感染H7N9禽流感病例,死亡12例(病死率54.55%)。发病集中在冬春季节,多数病例有禽类暴露史,以既往有慢性基础性疾病的老年人为主,χ2检验发现死亡组中有慢性基础性疾病的病例所占比例要高于存活组(P=0.01);外环境监测阳性率也呈现冬春高夏秋低的季节性消长。结论外环境监测阳性率与发病趋势基本吻合,由于外环境监测阳性率又有抬头趋势,须警惕新病例的发生,尤其是在农村地区以及职业暴露人群,也需要进一步提高基层的识别和诊治等防控能力。
[Abstract]:Objective to analyze the epidemiological characteristics of human infection with H7N9 avian influenza in Xiaoshan District of Hangzhou City, Zhejiang Province from 2013 to 2016. Methods Epidemiological data of confirmed cases of human infection with H7N9 avian influenza in Xiaoshan District were collected, and SPSS 16.0 software was used. T test, 蠂 2 test and rank sum test were used to analyze the epidemiological characteristics of death and survival cases, and the epidemiological characteristics of external environmental monitoring results. Results A total of 22 human cases with H7N9 avian influenza were confirmed in Xiaoshan District from 2013 to 2016. 12 cases died (case fatality rate 54.55%). The incidence was concentrated in the winter and spring seasons, and most of the cases had a history of poultry exposure. The proportion of cases with chronic basic diseases in the death group was higher than that in the survival group, and the positive rate of external environmental monitoring was also high in winter and spring and low in summer and autumn. Conclusion the positive rate of external environmental monitoring is consistent with the incidence trend. Since the positive rate of external environmental monitoring is on the rise again, it is necessary to guard against the occurrence of new cases, especially in rural areas and occupational exposed population, and to further improve the ability of prevention and control such as identification, diagnosis and treatment at the grass-roots level.
【作者单位】：萧山区疾病预防控制中心;
【分类号】：R511.7;R181.3

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