北京市顺义区健康人群甲型H1N1流感抗体水平监测

Serologic survey on influenza A(H1N1) in Shunyi district of Beijing

目的:了解北京市顺义区健康人群甲型H1N1流感抗体水平,为卫生部门制定预防控制措施和策略提供依据。方法:随机选取顺义区12个乡街的5岁以上健康人群采集免疫前静脉血检测抗体,评估健康人群抗体水平。结果:202份血清标本中甲流抗体水平阳性率46.53%(94/202),与北京市人群甲型H1N1流感抗体水平检测结果差异有统计学意义。抗体几何平均滴度倒数(GMRT)为32.78。不同性别人群之间甲型H1Nl流感抗体阳性率无差别(P>0.05),不同年龄组之间抗体水平阳性率有差别(P<0.05),25岁～29岁、10岁～14岁组抗体水平阳性率高。结论:顺义区甲型H1N1流感实际感染数高于北京市甲型H1N1流感平均感染水平。甲型H1N1流感感染与性别无关,与年龄有关,感染主要集中在25岁～29岁、10岁～14岁组人群。

Objective：To know the antibody levels against influenza A（H1N1） in Shunyi district of Beiing,to provide a scientific evidence for related departments to make the prevention and control strategies of influenza A（H1N1）.Methods： Venous blood was randomly collected from healthy population above 5 years old in 12 towns and streets of Shunyi district to analyze the antibody levels against A（H1N1）.Results： Among 202 serum specimens,the positive rate of influenza A（H1N1） antibody was 46.53%（94/202）,which had statistical significance with that of Beijing.The GMRT was 32.78.The positive rate difference of influenza A（H1N1） antibody was not found between males and females（P0.05）,while which was found among different groups（P0.05）.Higher positive rate was found in population aged 25~29 and 10~14 years old.Conclusion： Influenza A（H1N1） infection cases in Shunyi district were more than the average of Beijing,which was not related to sex but age,especially in people of 25~29 and 10~14 years old.