Rickettsia raoultii, the predominant Rickettsia found in Mongolian Dermacentor nuttalli

Speck, Stephanie; Derschum, Henri; Tserennorov, D.; Otgonbaatar, Dashdavaa; Jiang, Ju; Kayßer, Philipp; Jigjav, Battsetseg; Erdenebat, Nyamdorj; Baatar, Undraa; Munkhbat, Enkhtuya; Choijilsuren, Otgonchimeg; Gerelchuluun, Otgonsuren; Römer, Angelika; Richards, Allen L.; Kiefer, Daniel; Scholz, Holger C.; Wölfel, Roman; Zöller, Lothar; Dobler, Gerhard; Eßbauer, Sandra

doi:10.1016/j.ttbdis.2012.04.001

Cited by 42 publications

(34 citation statements)

References 14 publications

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“…Since then, this rickettsia has been identified in different parts of Asiatic Russia (Omsk, Novosibirsk, and Buryatiaya) and Kazakhstan in different species of Dermacentor ticks, including D. reticulatus, D. marginatus, and D. nuttalli. The most recent report also shows that this rickettsia is widely distributed in northern China (436) and Mongolia (404). Similar rickettsiae were also identified in D. niveus ticks in China (GenBank accession numbers JQ664721 and JQ664722); H. hystricis ticks in Japan (accession number JQ697956); and Haemaphysalis ornithophila, Haemaphysalis shimoga, Haemaphysalis lagrangei, and A. testudinarium ticks in Thailand (437).…”

Section: Tick-borne Rickettsiae In Asia Species Identified As Pathogensmentioning

confidence: 62%

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Update on Tick-Borne Rickettsioses around the World: a Geographic Approach

et al. 2013

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SUMMARY Tick-borne rickettsioses are caused by obligate intracellular bacteria belonging to the spotted fever group of the genus Rickettsia . These zoonoses are among the oldest known vector-borne diseases. However, in the past 25 years, the scope and importance of the recognized tick-associated rickettsial pathogens have increased dramatically, making this complex of diseases an ideal paradigm for the understanding of emerging and reemerging infections. Several species of tick-borne rickettsiae that were considered nonpathogenic for decades are now associated with human infections, and novel Rickettsia species of undetermined pathogenicity continue to be detected in or isolated from ticks around the world. This remarkable expansion of information has been driven largely by the use of molecular techniques that have facilitated the identification of novel and previously recognized rickettsiae in ticks. New approaches, such as swabbing of eschars to obtain material to be tested by PCR, have emerged in recent years and have played a role in describing emerging tick-borne rickettsioses. Here, we present the current knowledge on tick-borne rickettsiae and rickettsioses using a geographic approach toward the epidemiology of these diseases.

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Section: Tick-borne Rickettsiae In Asia Species Identified As Pathogensmentioning

confidence: 62%

“…The infection rate in Dermacentor ticks may vary from 8.3 to 13.0% (403,404). The morbidity is strongly seasonal, with peaks in April and May (120), corresponding to the peaks in activity of Dermacentor ticks in Siberia.…”

Section: Tick-borne Rickettsiae In Asia Species Identified As Pathogensmentioning

confidence: 99%

Update on Tick-Borne Rickettsioses around the World: a Geographic Approach

et al. 2013

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“…Since its emergence, R . raoultii has been found to be associated with Dermacentor ticks throughout Europe ( 3 ) and in some parts of Asia, including Mongolia ( 4 ) and China ( 5 , 6 ). …”

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confidence: 99%

Human Infections withRickettsia raoultii, China

Jia¹,

Zheng²,

Ma³

et al. 2014

Emerg. Infect. Dis.

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“…in ticks ranging from 12.5% to 97.0% in northern Mongolia [5,14,31]. Rickettsia raoultii is the dominant SFGR species circulating in D. nuttalii ticks in northern Mongolia with prevalence ranging between 66 and 97.0% [5,12] suggesting that Rickettsia raoultii could be circulating in small mammals captured in this study. In our study, Mongolian gerbils had a very high prevalence of Rickettsia spp.…”

Section: Discussionmentioning

confidence: 90%

A cross-sectional study of small mammals for tick-borne pathogen infection in northern Mongolia

Pulscher

2018

Infection Ecology & Epidemiology

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Background: Tick-borne pathogens (TBPs) are frequently studied in developed nations but are often neglected in emerging countries. In Mongolia, TBP research is especially sparse, with few research reports focusing upon human and domestic animal disease and tick ecology. However, little information exists on TBPs in small mammals. Methods: In this 2016 cross-sectional pilot study, we sought to uniquely study wildlife for TBPs. We live-trapped small mammals, and tested their whole blood, serum and ear biopsy samples for molecular or serological evidence of Borrelia spp., Rickettsia spp., and Anaplasma spp./Ehrlichia spp. Results: Of 64 small mammals collected, 56.0%, 39.0% and 0.0% of animals were positive by molecular assays for Borrelia spp., Rickettsia spp., and Anaplasma spp./Erhlicia spp., respectively. 41.9% were seropositive for A. phagocytophilum and 24.2% of animals were seropositive for Rickettsia rickettsii. Conclusion: This pilot data demonstrates evidence of a number of TBPs among small mammal populations in northern Mongolia and suggests the need to further investigate what role these mammals play in human and domestic animal disease.

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Rickettsia raoultii, the predominant Rickettsia found in Mongolian Dermacentor nuttalli

Cited by 42 publications

References 14 publications

Update on Tick-Borne Rickettsioses around the World: a Geographic Approach

Update on Tick-Borne Rickettsioses around the World: a Geographic Approach

Human Infections withRickettsia raoultii, China

A cross-sectional study of small mammals for tick-borne pathogen infection in northern Mongolia

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