Analysis of surveillance data of influenza in Suzhou city of Anhui Province from 2009 to 2012
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摘要: 目的: 对安徽省宿州市2009～2012年流感监测结果进行分析,了解宿州市流感的流行趋势,为流感的防控提供科学依据.方法: 采集流感样病例或爆发疫情时流感患者的咽拭子,采用Real-Time PCR技术检测标本中流感病毒特异性核酸.结果: 在1 672份标本中,共检测流感病毒核酸阳性214例,总阳性率12.8%.2009年共检测标本287例,流感病毒特异性核酸阳性155例,阳性率54.0%;2010年标本729例,流感病毒特异性核酸阳性39例,阳性率5.3%;2011年共检测标本319例,流感病毒特异性核酸阳性4例,阳性率1.3%;2012年共检测标本337例,流感病毒特异性核酸阳性16例,阳性率4.7%.214例流感病毒核酸阳性患者主要集中在0～和10～岁年龄组,其次是20～岁,男女比为1.2:1,男女阳性率分别为12.0%和13.9%,差异无统计学意义(P >0.05).结论: 流感病毒特异性核酸检测阳性率2009～2011年逐年下降,2012年比2011年阳性率升高,流感病毒的监测和防控工作仍需加强.流感发病患者主要集中在儿童及青少年,且无性别差异.
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关键词:
- 流感病毒 /
- Real-Time聚合酶链反应
Abstract: Objective: To provide scientific basis for the prevention and control of influenza by analyzing the surveillance data and epidemic situation of influenza in Suzhou city from 2009 to 2012.Methods: The Real-Time PCR technology was used to detect the specificity nucleic acid of influenza virus in collected influenza-like cases or throat swab specimens from patients with influenza.Results: A total of 1 672 specimens were tested,among which 214 were found to have positive specificity nucleic acid of influenza virus,with a total positive rate of 12.8%.Among the 287 samples detected in 2009,positive specificity nucleic acid of influenza virus was found in 155 of them(54.0%);among the 729 samples detected in 2010,positive specificity nucleic acid of influenza virus was found in 39 of them(5.3%);among the 319 samples detected in 2011,positive specificity nucleic acid of influenza virus was found in 4 of them(1.3%);among the 337 samples detected in 2012,positive specificity nucleic acid of influenza virus was found in 16 of them(4.7%).The 214 patients with positive influenza virus nucleic acid were mainly concentrated at the age group of 0 to 10,followed by the age group of 20.The ratio of male and female was 1.2:1,and the positive rate of male and female was 12.0% and 13.9%,respectively;the difference was not statistically significant(P >0.05).Conclusions: The positive rate of specific nucleic acid of influenza virus declines from 2009 to 2011 year by year;but the positive rate in 2012 is higher than that in 2011,so monitoring,prevention and control work still needs to be strengthened.Children and adolescents are the high risk population for influenza with no gender differences. -
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