大连市2010-2011年度流感监测结果分析

Analysis of Influenza Surveillance from 2010 to 2011 annual

目的掌握大连市流感流行状况,为科学制定流感防控措施提供依据。方法对大连市2010-2011年度流感监测结果进行描述性分析。结果 18家流感监测哨点医院2010年度ILI%总体水平高于2011年度ILI%水平;流感病毒检测平均阳性率为17.75%;三家医疗机构甲型H1N1流感抗体平均阳性率31.50%,儿童医院抗体阳性率明显高于其他2家医疗机构(χ2=23.168,P<0.005),6～17岁年龄组抗体阳性率(47.86%)高于其它年龄组,且各年龄组之间阳性率有明显差异(χ2=54.887,P<0.005),而性别间、是否接种流感疫苗间的抗体阳性率无统计学差异。结论 2009年新甲1型流感病毒为主,2010-2011年大连市流感优势毒株为BY型;6～17岁组抗体阳性率最高,通过隐性感染而获得抗体的可能性较大;流感病毒流感监测是控制流感流行的一个重要环节,学校、托幼机构及养老院等集体单位是疫情监测的重点场所。

Objective to master epidemic situation of in Dalian, for science make Influenza （flu） prevention and control measures to provide basis. Methods To analyze Influenza from 2010 to 2011 annual in Dalian. Results 18 flu monitoring post point hospital 2010 annual ILI % overall level higher than 2011 annual ILI % level; The flu virus detection average positive rate is 17.75%; Three medical institutions H1N1 flu antibodies a average positive rate of 31.50%, Children＇s hospital of antibody is obviously higher than that Of the other two medical institutions （X^2=23.168, P〈0.005）, 6 to 17 years old age group of antibody （47.86%） than other age groups, And every age group have obvious difference between positive rate （X^2=54.887, P〈0.005）, And between the sexes, whether between the influenza vaccine inoculation of antibody of no statistical difference. Conclusion in 2009 new al flu virus is given priority to, In 2010-2011 dalian advantage for influenza strain BY type, 6 to 17 years old group antibody positive rate is highest, Through the recessive infection and acquired antibody probability; The flu virus flu influenza control monitoring is an important link, School, nursery institution and nursing homes and collective unit is the focus of the epidemic monitoring sites.