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莱姆病为一种蜱传播的自然疫源性疾病。经张哲夫[1]（1987）、目大成[2]（1990）等人调查证实了大兴安岭为该病的疫区。目前临床表现方面报道较少。为搞清我林区发病特点，我们自1992年至1995年对大兴安岭林区该病血清学及症状学做了调查．结果如下。材料及方法一、调查范围内
Lyme disease is a natural foci of tick-borne disease. The investigation by Zhang Zhefu [1] (1987) and Munda Cheng [2] (1990) confirmed that Daxing’anling is the endemic area of the disease. The current clinical reports less reported. In order to clarify the characteristics of my forest disease, we investigated the serology and symptoms of the disease in the Greater Xing’an Mountains from 1992 to 1995. The result is as follows. Materials and methods First, the scope of the investigation