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1989年5～6月在吉林省抚松县境内的松江河林业局白西林场及珲春县长岭子地区,用人工布旗法扑获游离蜱。从13组(260只)全沟硬蜱中分离出8株疏螺旋体,其形态、运动、免疫学特征及动物试验等均与伯氏疏螺旋体标准株(B_(31))相同。4组(120只)嗜群血蜱未分离出疏螺旋体。在当地发现1例慢性游走性红斑病人,伴有发热及感冒样症状,于发病后两周,血清莱姆病抗体效价达1:128(IFA法)。在105名健康林业工人及家属中,血清菜姆病抗体效价≥1:8者占10.5％。上述结果表明,抚松、珲春林区存在莱姆病的自然疫源地。
1989 May to June in Fushu County, Jilin Province Songjianghe Forestry Bureau Xixian Linchang and Changchun sub-district of Qichun County, artificial cloth flag method to capture the free ticks. Eight strains of Borrelia were isolated from 13 ticks (260) Ixodes. The morphological, kinetic, immunological characteristics and animal experiments were the same as those of Borrelia burgdorferi (B_ (31)). Four groups (120) did not isolate B. burgdorferi. One case of chronic migratory erythema was found in the locality, accompanied by fever and flu-like symptoms. After two weeks of onset, serum Lyme disease antibody titer reached 1: 128 (IFA method). In 105 healthy forestry workers and their families, serum leptin antibody titer ≥1: 8 accounted for 10.5%. The above results show that Fusong, Hunchun forest areas exist Lyme disease natural foci.