2013-2014年全国人感染H7N9禽流感疫情媒体信息搜索分析

Epidemiological characteristics and media information surveillance of Human Avian Influenza A(H7N9) cases in China's Mainland(2013-2014)

目的通过媒体信息搜索,分析2013-2014年我国内地人感染H7N9禽流感流行病学特征,为今后类似新发传染病监测工作提供新方法和思路借鉴。方法通过搜索整理官方网站通报的人感染H7N9禽流感疫情信息,运用SPSS 16.0统计分析该病流行病学特征。结果该病季节性、区域性分布明显,职业以农民、退休人员为主,占63.53%。2013年平均年龄为56±19岁,病例高发年龄段是61-70岁,2014年为53±20,51-60岁。2014年报告病死率为28.85%,低于2013年的34.03%,但危重及重症病例比例占住院病例的比例远高于2013年。结论 H7N9病毒来源于市场内的活禽,禽-人之外,禽-环境-人也是至关重要的一个传播方式,季节性关闭活禽市场、加强宣教为该病有效防范措施。

Objective Media information was searched to analyze the epidemiological characteristics of human avian influenza A（H7N9） epidemic in China's Mainland from 2013 to 2014,and provide new methods and ideas for the surveillance of the emerging infectious diseases. Methods The epidemiological information of the cases reported by the official website was collected,and the epidemic distribution of the cases was analyzed by spss16. 0. Results The disease showed a distinct significance of seasonal and regional distribution. The majority of the cases were farmers and retirees（ 63. 53%）. In 2013,the average age of the cases was 56 ±19,and most of them were 61 - 70 years old,while they were 53 ± 20 and 61 - 70 years old respectively in 2014. The mortality was28. 85% in 2014,and 34% in 2013. However,the proportion of severe cases of 2014 in reported cases was 73. 68%,much higher than that of 2013. Conclusions H7N9 virus originated from live poultry markets. Human might be infected by poultry. Poultryenvironment-human was also a vital means of transmission. Seasonal closure of live poultry markets and strengthening of publicity and education might be effective preventive measures.