Diversity of spotted fever group Rickettsia infection in hard ticks from Suifenhe, Chinese-Russian border

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• 作者：Cheng Cheng^a ; ^e ; Weiming Fu^a ; Wendong Ju^a ; Liwei Yang^a ; Ning Xu^a ; Yan-mei Wang^a ; Hui Li^b ; Yan-lu Wang^c ; Man-xia Hu^c ; Jing Wen^d ; Dan Jiao^d ; Cong Geng^a ; Yi Sun^e ; ^{sunyi73@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; ^{378176938@qq.com" class="auth_mail" title="E-mail the corresponding author}Author Vitae
• 关键词：Rickettsia raoultii ; R. heilongjiangensis ; Candidatus Rickettsia tarasevichiae ; Ixodes persulcatus ; Suifenhe
• 刊名：Ticks and Tick-borne Diseases
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：7
• 期：5
• 页码：715-719
• 全文大小：469 K

文摘

In order to investigate the diversity of spotted fever group (SFG) Rickettsia infection in hard ticks, ticks were harvested from the forest areas in Suifenhe city, along the Chinese–Russian border and conventional PCR was carried out using universal SFG Rickettsia primers targeting gltA and ompA genes to screen for their infection with SFG Rickettsia organisms. Results showed that of the 215 ticks belonging to Ixodes persulcatus, Haemaphysalis concinna and Haemaphysalis japonica Warburton, 1908 species, 138 (64.2%) were positive for SFG Rickettsia. Three species of SFG Rickettsia were detected, Rickettsia raoultii, Rickettsia heilongjiangensis and Candidatus Rickettsia tarasevichiae. No co-infection with different species of SFG Rickettsia was found in any individual tick among the three tick species. We detected more than one SFG Rickettsia species in ticks from each of the three tick species with an overlapping distribution and potentially similar transmission cycles of SFG Rickettsia in the areas surveyed. Consequently, different pathogenic rickettsial species may be involved in human cases of rickettsiosis after a bite of the three above-mentioned tick species in that area Rickettsia