福建省2013-2014年不明原因肺炎病例监测分析

Surveillance data analysis of unknown etiology pneumonia in Fujian province

目的分析福建省2013年1月-2014年6月不明原因肺炎病例监测结果,发现不明原因肺炎病例监测工作中存在的问题,为进一步做好监测工作提供依据。方法系统收集福建省2013年1月-2014年6月所有不明原因肺炎病例监测数据,运用描述性流行病学方法对资料进行流行病学特征分析。结果福建省2013年1月-2014年6月报告不明原因肺炎病例134例,其中明确诊断为人感染H7N9禽流感者20例。病例报告有明显高峰与地区聚集性,与人感染H7N9禽流感疫情高峰和地区分布高度一致。不明原因肺炎发病-诊断的时间间隔为1-34d,中位数为6d,医疗机构诊断符合率为66.42%（89/134）,明确病原学诊断率为41.79%（56/134）。结论不明原因肺炎监测对人感染H7N9禽流感病例的发现有重要作用,但是仍然存在很多困难和问题,建议进一步规范不明原因肺炎病例的诊断和报告,同时与流感样病例监测系统相结合,以更好地实现监测目的。

Objective To analyze the surveillance data of cases with unknown etiology pneumonia（UEP）reported from January 2013 to June 2014 in Fujian province,to find the problems of reporting,and to provide scientific evidences for improving the surveillance. Methods All surveillance data of UEP cases from January2013 to June 2014 in Fujian province were collected and analyzed by applying descriptive epidemiological analysis method for epidemiological characteristics of cases. Results A total of 134 UEP cases were reported from January 2013 to June 2014,including 20 confirmed cases of human avian influenza/H7N9.The seasonal and geographical features of UEP were highly consistent with that of human avian influenza/H7N9.The lag time（the interval between symptom onset and diagnosis）ranged from 1to 34 days with the median of 6days.The diagnosis coincidence rate was 66.42%（89/134）in medical institutions and the etiological confirmation rate was41.79%（56/134）. Conclusions Surveillance for UEP plays an important role in finding cases with human avian influenza/H7N9,however,this surveillance system still has some problems and need to be further improved.