目的：了解北京市西城区麻疹疑似病例的血清学检测情况，为麻疹的监测与预防提供依据。方法分析2011—2014年北京市西城区麻疹疑似病例200份血标本的检测结果及年龄分布情况。结果2011—2014年麻疹疑似病例血清学检测阳性率为32．50％（65／200）；各年份血清学检测阳性率分别为12．00％、4．35％、33．90％和44．09％；不同年份血清学检测阳性率比较，差异有统计学意义（P ＜0．001）。200例麻疹疑似病例中，＜5岁组65例，血清学检测阳性率为35．38％；＞24岁组97例，血清学检测阳性率为34．02％；31例接种疫苗，接种率为15．50％；IgM 抗体阳性病例疫苗接种率（3．08％）低于 IgM 抗体阴性病例（21．48％），差异有统计学意义（P ＜0．001）。结论2011—2014年北京市西城区麻疹血清检测阳性率2012年降低，然后逐年上升，5岁以下儿童通过麻疹疫苗免疫接种麻疹将得到控制，为实现消除麻疹的计划，有效控制和预防成人麻疹发病具有重要意义。%Objective To understand the serological detection of suspected measles cases in Xicheng District of Beijing,and provide basis for monitoring and prevention of measles.Methods Detection results of 200 blood speci-mens and age distribution of suspected measles cases in Xicheng District of Beijing in 2011 -2014 were analyzed. Results The positive rate of serological detection of suspected measles cases in 2011-2014 was 32.50%(65/200);positive rates in each year were 12.00%,4.35%,33.90%,and 44.09% respectively;there was significant differ-ence in the positive rate of serological tests in different years(P <0.001).Of 200 cases,65 were <5 years old,and 97 were >24 years old,positive rates of serological detection were 35.38% and 34.02% respectively;31 cases (15.50%)received vaccination of measles;vaccine coverage rate in IgM antibody positive cases was lower than IgM antibody negative cases (3.08% vs 21 .48%,P <0.001 ).Conclusion Positive rate of serological detection de-creased in 2012,then increased year by year,for children under 5 years,measles are controlled by immunization with measles vaccine,in order to achieve the goal of eliminating measles effectively,control and prevention of adult measles is of great significance.
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