| 陕西省甲型H1N1流感人群感染状况调查 |
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| 引用本文： | 王敬军,许晶,张蕾,史伟,周体操,邓勇,余鹏搏,郭晓荣,张义.陕西省甲型H1N1流感人群感染状况调查[J].中国公共卫生,2011,27(1). |
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| 作者姓名： | 王敬军 许晶 张蕾 史伟 周体操 邓勇 余鹏搏 郭晓荣 张义 |
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| 作者单位： | 陕西省疾病预防控制中心病毒研究室,西安,710054 |
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| 摘 要： | 目的 分析甲型H1N1流感疫情的时间分布特征和检测抽样人群血凝抗体水平,拟合人群实际感染和免疫状况.方法 对陕西省的甲型H1N1流感全部、重症和死亡病例进行时间分布描述,并在流行高峰后第2、4个月,对9 006名分层整群抽样人群进行甲型H1N1流感血凝抗体检测.结果 甲型H1N1流感的流行经过了输入期、国内流行期、快速放大期、危重病例出现期和流行高峰后期等5个流行过程;流行高峰后,甲型H1N1流感血凝抗体阳性率大城市高于中小城镇和农村,男性高于女性,6～17岁中小学年龄段人群阳性率最高,60岁～人群最低,人群隐性感染率23.40%:感冒对甲型H1N1流感抗体形成的超额贡献率为4.87%;接种甲型H1N1流感疫苗的净阳转率为25.10%,在1:20以上各滴度中,接种组抗体形成率高于非接种组0.75～1.52倍.结论 甲型H1N1流感流行经历了5期过程,人群隐性感染率23.40%,接种甲型H1N1流感疫苗的净阳转率为25.10%.
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| 关 键 词： | 甲型H1N1流感 流行模式 抗体形成 |
Prevalence of influenza A(H1N1)infection among residents of Shaanxi province |
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| WANG Jing-jun,XU Jing,ZHANG Lei,et al..Prevalence of influenza A(H1N1)infection among residents of Shaanxi province[J].Chinese Journal of Public Health,2011,27(1). |
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| Authors: | WANG Jing-jun XU Jing ZHANG Lei |
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| Institution: | WANG Jing-jun,XU Jing,ZHANG Lei,et al.Department of Virus Research,Shaanxi Provincial Center for Disease Control and Prevention(Xi'an 710054,China) |
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| Abstract: | Objective To explore the relationship between influenza A(H1N1) infection and immune status among residents in Shaanxi province by analysis of cases distribution and serum antibody detection.Methods Time distribution of influenza A(H1N1) cases was analyzed.Two and four months after the epidemic peak,the hemagglutinin antibody of influenza A(H1N1) was detected in the subjects selected with random sampling.Results The epidemic pattern of influenza A(H1N1) included five periods.They were import period,epidemic... |
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| Keywords: | influenza A(H1N1) epidemic pattern antibody formation |
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