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目的了解兰州地区普通人群甲型H1N1流感的血清抗体水平,为进一步制定甲型H1N1流感防控措施提供参考依据。方法随机选择甘肃省兰州市5家医院门诊就诊人群和血站献血人员共421人,采静脉血检测甲型H1N1流感血清抗体水平进行分析。结果调查对象甲型H1N1流感血清总抗体阳性率为10.45%,接种疫苗组人群阳性率为42.86%,未接种疫苗组人群阳性率为8.14%;0～5岁、18～55岁、56岁及以上年龄组人群阳性率分别为11.76%、8.85%和2.83%,6～17岁年龄组人群阳性率为19.00%。结论兰州地区普通人群对甲型H1N1流感的感染率较低,6～17岁年龄组人群阳性率较其他年龄组高。
Objective To understand the serum antibody level of Influenza A (H1N1) in the general population in Lanzhou, and to provide reference for further prevention and control measures of Influenza A (H1N1). Methods A total of 421 outpatients and blood donors from 5 hospitals in Lanzhou City of Gansu Province were randomly selected. Serum levels of influenza A (H1N1) antibody were detected by venous blood sampling. Results The positive rate of influenza A (H1N1) antibody was 10.45% in the surveyed population, 42.86% in the vaccinated group and 8.14% in the unvaccinated group. The positive rate of the non-vaccinated group was 0 ~ 5, 18 ~ 55, 56 and The positive rates of the above age groups were 11.76%, 8.85% and 2.83%, respectively. The positive rate of the age group of 6-17 years was 19.00%. Conclusion The prevalence of Influenza A (H1N1) in the general population in Lanzhou is low, and the positive rate in the 6-17 age group is higher than that in other age groups.