吉首纤恙螨人工饲养及经卵传递恙虫病立克次体的试验

• 作 者: 李光密 张新雄 邓德生
• 机 构: 湖南省卫生防疫站,湖南省卫生防疫站,古丈县龙鼻医院
• 出 处: 湖南医学
• 发表日期: 1988年05期
• 关键词: 恙虫病立克次体 经卵传递 吉首纤恙螨 人工饲养 沼泽田鼠 贮存宿主 病原分离鉴定 黑线姬鼠 分离毒株 盲传

湘西为我国新发现的恙虫病疫区,吉首纤恙螨是当地优势种。从疫源地的黑线姬鼠和华南沼泽田鼠身上收集该螨饱食幼虫(母代)以蚤卵饲养成功,并人工饲养孵出一代未食幼虫叮咬健康小白鼠使其感染发病后,进行病原分离鉴定为恙虫病立克次体。说明吉首纤恙螨能经卵传递恙虫病立克次体,具备作为新媒介的必要条件,成为恙虫病立克次体新的贮存宿主,在保存病原体和传播恙虫病方面起重要作用。

Xiangxi is the newly discovered scrub typhus in China. Jiguan fiber chigger is the dominant species in the area. From the foci of Apodemus agrarius and S. marsh vole body collected from the body of the mite saprophytic larvae (maternal) to flea eggs breeding success, and hatched a generation of unripe larvae artificially bite healthy mice after the onset of infection, the Pathogen was identified as scrub typhus Rickettsia. It shows that Chigger mite can transfer Rickettsia tsutsugamushi by egg, which possesses the necessary condition as a new medium and becomes the new storage host of Rickettsia tsutsugamushi. It plays an important role in preserving pathogens and transmitting tsutsugamushi disease.