清远市2011年流感监测结果分析

Analysis of influenza surveilance in Qingyuan during 2011

目的:分析清远市2011年流感监测结果,了解流感流行特征,为清远市流感防控工作提供科学依据。方法:选择清远市人民医院作为流感监测的哨点医院,采集疑似流感样患者咽拭子标本。采用实时荧光定量RT-PCR方法检测流感病毒核酸。结果:清远市2011年检测疑似流感样患者咽拭子标本共484份,流感病毒核酸阳性为36份,总阳性率为7.44%。其中新型甲型H1N1和乙型流感分别占69.44%、16.67%;未分离到季节性H1和H3亚型,A通用型未分型占13.89%。清远市2011年流感活动高峰主要集中在1月-3月份和12月份。结论:清远市2011年春季以新型甲型H1N1流感流行为主,然后逐渐过渡为乙型流感。

Objective：To analyze the results of influenza surveillance during 2011 in Qingyuan city and to understand the epidemiological characteristics of influenza,and to provide a scientific basis for influenza control and prevention.Methods： The influenza virus nucleic acids were detected and the virus serotypes were determined by Real Time quantitative RT-PCR.Results： A total of 484 throat swab specimens were detected during 2011,of which 36 samples were positive for influenza virus nucleic acids,the total positive rate was 7.44%.The positive rates of Influenza A H1N1 and B were 69.44%,16.67%.No subtype H1 and H3 were observed during 2011.Positive rate of nontypeable A popular type accounted for 13.89%.In 2011,influenza peak was mainly in January^March,and December in Qingyuan.Conclusion： Main influenza subtypes changed continuously from Influenza A（H1N1） in the spring of 2011 to B subtype in Qingyuan city.