2015—2016年度安庆市流行性感冒监测分析

Analysis on surveillance results of influenza in Anqing City from 2015-2016

目的通过对安庆市2015—2016年度流行性感冒（流感）监测结果分析,了解其活动规律,为制定防控策略提供科学依据。方法登录国家流感监测系统,对安庆市2015—2016年度哨点医院和网络实验室流感数据进行统计学分析,使用χ~2检验分析阳性率等指标的差异有无统计学意义。结果 2015—2016年度安庆市流感样病例就诊比例（ILI%）为3.75%,ILI主要集中在0~4组,占46.29%。病原学检测阳性率为8.55%,阳性标本型别以季H3型为主,不同性别阳性率差异无统计学意义（χ^2=1.60,P〉0.05）。结论安庆市2015—2016年度流感活动维持在较低水平。（ILI）流行呈现明显的季节性,有冬季和夏季2个高峰。

[Objective]To analyze the surveillance results of influenza in Anqing City from 2015-2016, understand its epidemiological law,and provide the scientific basis for formulating prevention and control strategies.[Methods]The data of influenza from sentinel hospitals and network laboratory in Anqing City from 2015-2016,which were collected from the National Influenza Surveillance System,were statistically analyzed. The Chi-squared test was used to analyze the positive rate.[Results]The influenza like illness rate（ILI%）was 3.75% in Anqing City from 2015-2016. ILI cases concentrated in 0-4 year-old age group,accounting for46.29%. The positive rate of pathogenic detection was 8.55%. Most of positive samples were H3 type. The difference in positive rate was not statistically significant between males and females（χ^2=1.60,P〈0.05）.[Conclusion]The epidemic situation of influenza is at a low level in Anqing City from 2015-2016. There is evident seasonal variation featured by two peaks in winter and summer.