2014年宿迁市流行性感冒监测结果分析

Analysis on influenza surveillance results in Suqian City in 2014

目的掌握宿迁市流行性感冒（简称流感）的流行特征及流行优势毒株的变化趋势，为制定流感防治策略提供科学依据。方法收集宿迁市流感监测哨点医院的流感样病例（ILI）数据、病原学检测结果和暴发疫情资料进行分析。结果宿迁市流感监测哨点医院2014年ILI占门急诊病例就诊总数的比例（Iu％）在2．82％～7．50％之间，呈现冬春季流行高峰；流感高发人群为14岁以下婴幼儿及儿童，占全部病例的97．43％；累计采集监测ILI标本1076份，检出流感阳性标本143份，阳性率为13．29％；ILI的高峰与流感病毒检测阳性情况基本一致；2起ILI暴发疫情均发生于冬季。结论宿迁市Iu％比较平稳，有冬春季流行高峰，病例以小年龄组居多。加强学校等人群聚集性场所暴发疫情监测，建议通过扩大流感监测网络进一步加强流感监测工作。

[Objective]To understand the epidemiological characteristics of influenza and the variation trend of dominant strains in Suqian City, provide scientific evidence for making prevention and control strategies of influenza.[Methods]The data of influenzalike illness（ILI）, results of pathogenic detection and outbreak reports from influenza surveillance sentinel hospitals in Suqian City were analyzed.[Results]In 2014, the proportions of ILl cases to total cases（ILI%） in influenza surveillance sentinel hospitals were between 2.82%-7.50%, and the peak season appeared spring and winter. The high-risk groups of influenza were infants and children under 10 years old, accounting for 97.43% of the total cases. 143 of 1 076 ILI specimens were positive with the positive rate of 13.29%. The ILl peak was consistent with the positive rate of influenza viruses. Two ILI outbreaks occurred in winter. [Conclusion]The ILI% level is relatively steady in Suqian City, the peak season has appeared spring and winter, and the high-risk population is younger age group. It is necessary to strengthen the outbreak surveillance in crowd gathering place such as school. Meanwhile, it is proposed that the influenza surveillance should be strengthened by extending the influenza sentinel surveillance system.