天津市河东区国家级流行性感冒监测点监测结果分析

Analysis of Monitoring Results of Influenza in National Monitoring Points in Hedong District of Tianjin City

目的分析天津市河东区2007—2008年度流行性感冒(下称流感)的病原学及流行特征。方法在流行季节每日对该区流感样病例(ILI)进行登记,并对部分病例采集咽拭子标本送至国家级流感检测实验室检测。结果2007年10月—2008年3月的26周,ILT共就诊22986人次,占门诊总量的10.28%。10岁以下学生、儿童是ILT的高发人群。共采集咽拭子标本157份,检出流感病毒80株,检出率为51%。按时间检出的不同型流感病毒株顺序规律为:乙型流感病毒(Yamaga-ta)→乙型流感病毒(Victoria)→甲3型流感病毒→甲1型流感病毒。河东区流感流行有明显的季节性,即冬季为流感流行季节,流感高发时间在12月或次年的1月。结论ILI流行病学及病原学监测结果对于了解河东区流感流行特点,为制订流感防制策略提供及时准确的科学依据具有重要意义。

[Objective] To analyze the etiology and epidemiological features of influenza in Hedong district of Tianjin during 2007-2008.[Methods] Influenza-like illnesses （ILI） were recorded daily during epidemic season, and some swab specimens were delivered to national laboratory for test.[Results] In 26 weeks from October 2007-march 2008, a total of 22986 ILI were diagnosis, accounted for 10.28% of the total outpatient visits. Students under the age of 10 and children were high-risk group. 157 swab specimens were collected, 80 strains were identified for influenza viruses with the rate of 51%. The identification sequence of different strains of influenza virus by the time were Yamagata→Victorial→influenza A3→influenza A1. Influenza pandemic has obvious seasonal feature that winter was the pandemic season with the high incidence time from December to January of the next year.[Conclusion] The ILI monitoring results of epidemiology and etiology have significance for the understanding of influenza pandemic characteristics of the Hedong district and developing influenza prevention and control strategies to provide timely and accurate scientific basis.