中国南澎列岛恙虫病疫源地的确立与人群防护

目的 中国南澎列岛恙虫病发病率近年明显增高，而国内并无该地区恙虫病疫源地的记载，为了当地军民的健康，本研究对该地区作为恙虫病疫源地进行全面调查与研究。方法 疫源地流行病学调查、病原分离、当地预防措施的制定。结果 该地区为南亚热带岛屿疫源地，主要宿主为褐家鼠，主要媒介为里纤恙螨。褐家鼠与地里纤恙螨的季节消长与发病均一致。从宿主与媒介分离到恙虫病立克次体经鉴定为Ｋａｒｐ株。血清流行病学调查表明该岛临时

The recognition of the epidemic area of tsutsugamushi disease on Nan Peng Lie Island in China and the strategy of prevention

Objective To investigate the region for the epidemic area of tsutsugamushi disease. Methods Epidemiological studies, Orientia tsutsugamushi isolation, and preventive measures were used. Results The region belonged to epidemic area of south subtropical zone.The main host was found Rattus norvegicu. The main biological vector was Leptotrombidium deliens. The seasonal trends of the quantity of Rattus norvegicu and Leptotrombidium deliens were consistent with the incidence change of the disease in the region. Orientia tsutsugamushi has been isolated from Rattus norvegicu and Leptotrombidium deliens. Data showed that Orientia tsutsugamushi isolated strains mainly belongs to Karp. Sero epidemiological data showed that antibodies of Orientia tsutsugamushi are 100.0 % positive in the residents of the region and 4.0 % in army men. After taking comprehensive preventive measures, the incidence was descending. Conclusion Nan Peng Lie island was proved an epidemic area of tsutsugamushi disease.