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首页> 外文期刊>Intelligence: A Multidisciplinary Journal >Molecular evidence of the spotted fever group Rickettsiae in ticks from Yunnan Province, Southwest China
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Molecular evidence of the spotted fever group Rickettsiae in ticks from Yunnan Province, Southwest China

机译：中国西南部云南省鸟类蜱虫的分子证据

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摘要

Ixodid ticks transmit many obligate intracellular Rickettsial species. Several previous studies have identified Rickettsia species in the northeastern and southern part of China, but few reports on the prevalence of infection of spotted fever group Rickettsiae (SFGR) in ticks in southwest China are available. Here, we investigated SFGR in 394 adult ticks of five species including Dermacentor nuttalli, Dermacentor silvarum, Haemaphysalis longicornis, Ixodes sinensis and Ixodes persulcatus, collected in the border region between China and Burma in Yunnan Province. PCR was used to detect the presence of the citrate synthase (gltA) gene of Rickettsia species. SFGR was found in 12.1% (15/124) of I. persulcatus ticks, which was significantly higher than the 7.2% (7/97) positive D. nuttalli, 5.4% (3/56) D. silvarum, 5.6% (4/72) H. longicornis and 4.4 (2/45) I. sinensis. A portion of the gltA and ompA gene data subjected to phylogenetic analysis revealed that the detected SFGR clustered into two species, Rickettsia raoultii and the new Rickettsia species Candidatus Rickettsia jingxinensis. Detection of both Rickettsia spp. in this region indicates a potential public health threat posed by SFGR infection in Yunnan Province.
机译：Ixodid蜱透射许多迫使细胞内的人的人类物种。以前的几项研究已经确定了中国东北部和南部的Rickettsia物种，但有关中国西南西南部蜱虫蜱Rickettsiae（SFGR）感染患病率的报道。在这里，我们研究了394名成年人的SFGR，其中五种物种包括皮德兰州南部的Dermacentor Nuttalli，Dermacentor Silvarum，Haemaphysalis Longicordornis，Ixodes Sinensis和Ixodes Persulcatus，在中国和缅甸省的边境地区收集。 PCR用于检测Rickettia物种的柠檬酸酯合酶（GlTA）基因的存在。 SFGR在12.1％（15/124）的I. persulcatus蜱中发现，其显着高于7.2％（7/97）阳性D. nuttalli，5.4％（3/56）D. Silvarum，5.6％（4 / 72）H. longicordornis和4.4（2/45）I. Sinensis。对系统发育分析进行的一部分GLTA和OMPA基因数据显示，检测到的SFGR聚集成两个物种，Rickettsia Raoultii和New Rickettsia物种Candidatus Rickettia Jingxinensis。检测rickettia spp。在该地区，表明云南省SFGR感染提出的潜在公共卫生威胁。

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