深圳市南山区2007～2009年流行性感冒监测分析

Results of monitoring of epidemic flu in Nanshan District,Shenzhen from 2007 to 2009

目的监测深圳市南山区流感流行动态和病原学特征,为预防和控制流行提供科学依据。方法以2007～2009年广东医学院附属南山医院流感监测系统积累的数据为基础,对流感样病例占监测门急诊就诊总数比例、流感病毒型别按月进行分析。结果 3年监测共报告ILI病例130 101例,ILI占监测门急诊就诊总数8.62%,夏季高峰明显;2007年优势毒株为A/H3N2亚型,2008年优势毒株为A/H1N1及B(Yamagata),2008年季节性流感以A/H3N2为主要流行株,9月份后以新型A/H1N1为主要流行株。流感样病例以15岁以下儿童占比最高,病毒分离以5～岁组分离率最高。结论本区全年都有流感病人,每年7月都是季节性流感的流行高峰,15岁以下儿童是流感的高危人群。

Aim To monitor influenza pandemic dynamics and its pathologic characteristics in Nanshan District, Zhenzhen.Methods Based on the data accumulated from 2007 to 2009 for monitoring influenza by Nanshan Hospital affiliated to Guangdong Medical College,the influenza-like cases were statistically analyzed.Results There 130 101 ILI influenza-like cases were detected accounted for 8.62%of the total number of outpatients.The influenza A virus subtype H3N2 was predominated in 2007,while influenza A virus subtype H1N1 was predominated in 2008 and subtype H1N1 was the main strains after September in 2009.Most influenza-like cases were children under the age of 15 years.Conclusion Influenza is prevalent all the year round in the area and July is the peak season.Children under 15 years of age are at high risk of influenza.