2005年北京市密云地区人群莱姆病血清流行病学调查研究

Seroepidemiological investigation of lyme disease in Miyun county,Beijing in 2005

目的了解密云地区莱姆病例在人群中的分布和感染状况。方法采用间接免疫荧光试验(IFA)开展了密云地区人群莱姆病血清流行病学调查。结果共采集各类人群血清样品748份。其中当地自然人群血清样品643份,莱姆病抗体阳性率为11.82%,不老屯地区感染率最高,达26.26%,其次为北庄,感染率为18.00%,石城最低,仅为2.94%;畜牧养殖人员血清样品58份,莱姆病抗体阳性率为8.62%;当地村民中精神异常人员血清样品47份,莱姆病抗体阳性率为8.51%。结论密云县人群中存在莱姆病的感染,感染水平高于2000年调查结果。不同地区和不同人群感染水平不同。

Objective To investigate the prevalence of Lyme disease in the residents of Miyun county. Methods Indirect immunofluorescent assay was used to test sera of people. Results A total of 748 serum samples were detected, in which 643 were from natural population, 58 from persons raising livestocks, 47 from mental heath abnomal persons. The positive rate against Borrelia burgdorferi was 11.82% in natrual population and was the highest （26. 26% ） in Bulaotun area, followed by Beizhuang area, and was the lowest in Shicheng area, which was only 2.94%. The positive rates were 8.62% and 8.51% respectively in persons raising livestocks and persons with abnormal mental health. Conclusion There is Lyme disease prevalence in population of Miyun county. The prevalence is more serious in 2005 than in 2000 and is varied in different areas and populations.