2010—2011年深圳市福田区人群流感抗体水平监测结果

Surveillance results of antibody level of influenza among population in Futian District of Shenzhen City from 2010-2011

目的通过了解深圳市福田区一般人群流行性感冒(流感)抗体水平,为预防和控制疫情提供依据。方法 2010—2011年共2次采集人群血清535份,以微量半致敏血凝抑制方法进行抗体检测。结果 2011年H3N2型抗体阳性率(62.2%)高于2010年(55.2%),新H1N1型抗体阳性率2011年(43.1%)较2010年(37.6%)略有升高,H1N1型抗体阳性率由2010年的51.4%降至2011年的6.5%。流感抗体效价1∶320主要分布在2011年甲型流感中,新H1N1型占阳性总数56.4%,H3N2占78.2%。结论福田区应加强人群中流感病毒抗体监测,及时掌握流感病毒流行特征和发展趋势。

[Objective]To understand the antibody level of influenza among the general population in Futian District of Shenzhen City,provide the basis for prevention and control.[Methods]A total of 535 serum samples were collected twice during 2010-2011,and the antibody level was tested by trace half sensitized hemagglutination inhibition assay.[Results]The positive rate of antibody to H3N2 in 2011（62.2%） was higher than that in 2010（55.2%）,the positive rate of antibody to new H1N1 in 2011（43.1%） increased slightly as compared with that in 2010（37.6%）,and the positive rate of antibody to H1N1 decreased from 51.4% in 2010 to 6.5% in 2011.Influenza antibody titer of 1：320 was mainly distributed in influenza A epidemic in 2011,new H1N1 accounted for 56.4% of positive samples,and H3N2 accounted for 78.2%.[Conclusion]It is necessary to strengthen the surveillance of antibody level of influenza among population in Futian District,to promptly grasp the epidemiological characteristics and development trend of the influenza virus.