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目的 :调查山东省沂蒙山区莱姆病自然疫源地。方法 :1992～ 1999年设点 ,用间接免疫荧光抗体试验进行人群莱姆病感染调查 ;用直接免疫荧光抗体法进行蜱中肠带螺旋体率调查 ;取鼠的肾脏、膀胱分离病原。结果 :沂蒙山区人群莱姆病平均感染率为 7.50 % ,林区人群感染率明显高于非林区人群 ;该地区蜱类以长角血蜱为优势种 ,该蜱中肠携带莱姆病螺旋体率为 12 .0 % ,从86组长角血蜱培养物中获得 2株莱姆病螺旋体。结论 :从病原学上证实沂蒙山区为莱姆病自然疫源地
Objective: To investigate the natural foci of Lyme disease in Yimeng Mountain, Shandong Province. Methods: From 1992 to 1999, immunofluorescent antibody test was used to investigate the epidemic situation of Lyme disease in the population. The serogroups of ticks in ticks were investigated by direct immunofluorescence antibody method. The pathogen was isolated from the kidneys and bladder of mice. Results: The average infection rate of Lyme disease was 7.50% in Yimeng mountainous area, and the infection rate in forest area was significantly higher than that in non-forest area. The ticks were dominated by H. longicornis, The rate was 12.0%. Two Lyme disease spirochetes were obtained from 86 H. longicornis cultures. Conclusion: It is etiologically confirmed that Yimeng Mountain is the natural foci of Lyme disease