湖南省平江县莱姆病调查研究

目的：调查湖南省平江县莱姆病的分布情况。方法：采用间接免疫荧光抗体法和直接荧光抗体染色法，于1999－2000年在平江县选点调查。结果：共查山林地区居民500人，血清抗莱姆病螺旋体抗体（IgG)阳性者32人，阳性率6.40%。38例临床和血清学确诊的莱姆病患者，其主要的临床表现有环形或慢性游走性红斑、关节炎、面神经麻痹、多发性神经炎、脑膜炎和心脏损害等。当地的蜱类以二棘血蜱为优势种，占85％，该蜱中肠携带莱姆病螺旋体率为12.0%(6/50)。结论：平江县存在莱姆病的自然疫源地，人群中有莱姆病的发生和流行。

An Investigation of Lyme Disease in Pingjiang County, Hunan Province, China

Objective: To make a clear idea of the infective condition and distribution of Lyme disease in Pingjiang county, Hunan province. Methods: By means of IFA and DFA from 1999 to 2000 serological and epidemiological investigations were conducted. Results: The sera of 500 forest residents were tested for antibodies against Borrelia burgdorferi (strain B31), 32( 6.40 %) residents had significant IgG titers.38 cases, including Erythema Chronicum Migrans, arthritis, facial paralysis, polyneuritis, mengitis and cardiac abnormalities, were confirmed being Lyme disease by serological and clinical examination. Spirochetes were observed in midguts of 12.0 % of 50 Haemaphysalis bispinosa in this area by Direct immunofluorescence test. Conclusion: The results showed that there is a nature focus of Lyme disease in Pingjiang county.