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目的对2014年10月~2015年3月乌鲁木齐市流感病原学进行监测分析,以明确乌鲁木齐市2014~2015年流感病原学特征,为流感疫情防控提供科学依据。方法对流感样病例的咽拭子样本进行流感病毒核酸检测,并利用MDCK进行病毒分离,采用血凝试验(HA)进行流感病毒型别的鉴定。结果 2014年10月~2015年3月共检测流感病例咽拭子样本1 334份,核酸检测阳性的有258份,阳性率为19.34%,其中甲型H1N1型1份,H3N2型216份,乙型BY41份。流感高峰在11和12月份,年龄以5~14岁为高发人群。共分离到流感病毒52株,整体分离率为3.76%,其中H3N2型51株,乙型BY1株。结论加强对流感的实时监测及对流感高度易感人群的防护,对我市流感的防控工作具有重要意义。
Objective To monitor and analyze the influenza etiology of Urumqi from October 2014 to March 2015 in order to clarify the epidemiological characteristics of influenza in Urumqi from 2014 to 2015 and provide a scientific basis for the prevention and control of influenza epidemic. Methods Throat swab samples of influenza-like cases were tested for influenza virus nucleic acid, and MDCK was used for virus isolation. Hemagglutination test (HA) was used to identify influenza virus type. Results A total of 1 334 pharyngeal swabs were detected in influenza cases from October 2014 to March 2015, 258 were positive for nucleic acid. The positive rate was 19.34%, including 1 H1N1, 216 H3N2, BY41 type. Flu peak in 11 and December, the age of 5 to 14-year-old high incidence of the crowd. A total of 52 strains of influenza virus were isolated, the overall isolation rate was 3.76%, of which 51 were H3N2 strains and BY1 strain BY. Conclusion Strengthening the real-time monitoring of influenza and the protection of people who are highly susceptible to influenza is of great significance for the prevention and control of influenza in our city.