北京市顺义区外来务工人员麻疹抗体水平监测

Investigation on Level of Measles Antibody of Floating Workers in Shunyi District of Beijing

目的针对重点人群开展免疫水平监测,为北京市顺义区制定控制麻疹策略提供依据。方法随机抽取辖区内务工人员作为观察对象,分3个年龄组,采用酶联免疫吸附试验(ELISA)检测麻疹抗体IgG。结果共监测206人,阳性率为93.69%,平均抗体浓度为1 551 IU/ml。监测对象在年龄、性别、户籍等方面差异均无统计学意义,麻疹抗体水平和阳性率无统计学意义。结论顺义区务工人员麻疹抗体阳性率和抗体浓度都达到了较高水平,目前在辖区内发生大范围的麻疹暴发疫情的可能性不大。

Objective To carry out the surveillance of immune level among the main crowd, and provide evidence to establish control strategies for measles in Shunyi District. Methods The floating workers were randomly sampled as the subjects, and divided into 3 age groups. The measles virus specific IgG antibody was detected by ELISA. Results The total number of surveillance subjects was 206, and the positive rate of IgG was 93.69%. The average concentration of IgG was 1 551 IU/ml. There was no significant difference in age, gender, and household registration among the subjects, and the differences in measles antibody level and positive rate were also not significant. Conclusion The positive rate of IgG and the antibody concentration of the floating workers in Shunyi District are high, which indicates that there is little possibility of the outbreak of measles in a large area in Shunyi District at present.