Wen Jing, Jiao Dan, Wang Jian-Hua, Yao De-Hai, Liu Zhi-Xiang, Zhao Gang, Ju Wen-Dong, Cheng Cheng, Li Yi-Jing, Sun Yi
College of Veterinary Medicine, Northeast Agricultural University, Harbin City, Heilongjiang Province, China,
Exp Appl Acarol. 2014 Aug;63(4):579-85. doi: 10.1007/s10493-014-9792-0. Epub 2014 Apr 4.
Since the year 2000, clinical patterns resembling tick-borne rickettsioses have been noticed in China-Russia border areas. Epidemiological data regarding species of the aetiological agent, tick vector prevalence and distribution as well as incidence of human cases in the areas are still sparse to date. In order to identify Rickettsia species occurring in the areas, we investigated Dermacentor silvarum collected in the selected areas. Rickettsia raoultii was the predominant Rickettsia found in D. silvarum evident with ompA, ompB, gltA and 17 kDa protein genes. The Rickettsia prevalence in D. silvarum appeared to be 32.25 % with no sex difference. The results extend the common knowledge about the geographic distribution of R. raoultii and its candidate vector tick species, which suggest an emerged potential threat of human health in the areas.
自2000年以来，在中国-俄罗斯边境地区发现了类似蜱传立克次体病的临床症状。迄今为止，关于该地区病原体种类、蜱媒流行率和分布以及人类病例发病率的流行病学数据仍然匮乏。为了确定该地区存在的立克次体种类，我们对在选定地区采集的森林革蜱进行了调查。用ompA、ompB、gltA和17 kDa蛋白基因检测发现，拉乌尔立克次体是在森林革蜱中发现的主要立克次体。森林革蜱中立克次体的流行率为32.25%，无性别差异。这些结果扩展了关于拉乌尔立克次体及其候选蜱媒种类地理分布的常识，这表明该地区对人类健康出现了潜在威胁。
