Detection of Rickettsia aeschlimannii and Rickettsia sibirica mongolitimonae in Hyalomma marginatum (Acari: Ixodidae) ticks from Turkey

Keskin, Adem; Bursalı, Ahmet

doi:10.1051/acarologia/20164140

Cited by 11 publications

(3 citation statements)

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“…In this study this Rickettsia species was detected earlier in 1.2% of the ticks, while it was reported in 0.3% of H . marginatum ticks in Corum [ 87 ] and in 0.25% of ticks in Tokat province [ 71 ].…”

Section: Discussionmentioning

confidence: 99%

Bacterial and protozoal pathogens found in ticks collected from humans in Corum province of Turkey

et al. 2018

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BackgroundTick-borne diseases are increasing all over the word, including Turkey. The aim of this study was to determine the bacterial and protozoan vector-borne pathogens in ticks infesting humans in the Corum province of Turkey.Methodology/Principal findingsFrom March to November 2014 a total of 322 ticks were collected from patients who attended the local hospitals with tick bites. Ticks were screened by real time-PCR and PCR, and obtained amplicons were sequenced. The dedected tick was belonging to the genus Hyalomma, Haemaphysalis, Rhipicephalus, Dermacentor and Ixodes. A total of 17 microorganism species were identified in ticks. The most prevalent Rickettsia spp. were: R. aeschlimannii (19.5%), R. slovaca (4.5%), R. raoultii (2.2%), R. hoogstraalii (1.9%), R. sibirica subsp. mongolitimonae (1.2%), R. monacensis (0.31%), and Rickettsia spp. (1.2%). In addition, the following pathogens were identified: Borrelia afzelii (0.31%), Anaplasma spp. (0.31%), Ehrlichia spp. (0.93%), Babesia microti (0.93%), Babesia ovis (0.31%), Babesia occultans (3.4%), Theileria spp. (1.6%), Hepatozoon felis (0.31%), Hepatozoon canis (0.31%), and Hemolivia mauritanica (2.1%). All samples were negative for Francisella tularensis, Coxiella burnetii, Bartonella spp., Toxoplasma gondii and Leishmania spp.Conclusions/SignificanceTicks in Corum carry a large variety of human and zoonotic pathogens that were detected not only in known vectors, but showed a wider vector diversity. There is an increase in the prevalence of ticks infected with the spotted fever group and lymphangitis-associated rickettsiosis, while Ehrlichia spp. and Anaplasma spp. were reported for the first time from this region. B. microti was detected for the first time in Hyalomma marginatum infesting humans. The detection of B. occultans, B. ovis, Hepatozoon spp., Theileria spp. and Hemolivia mauritanica indicate the importance of these ticks as vectors of pathogens of veterinary importance, therefore patients with a tick infestation should be followed for a variety of pathogens with medical importance.

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Section: Discussionmentioning

confidence: 99%

Bacterial and protozoal pathogens found in ticks collected from humans in Corum province of Turkey

et al. 2018

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“…In 2016, R. sibirica mongolitimonae was isolated from 2 H. marginatum ticks in the central Anatolian region of Turkey ( 7 ). …”

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“…In Europe, R. sibirica mongolitimonae was detected in Hyalomma excavatum ticks in Greece and Cyprus; in Rhipicephalus pusillus ticks in France, Portugal, and Spain; and in Rhipicephalus bursa ticks in Spain ( 6 ). In 2016, R. sibirica mongolitimonae was isolated from 2 H. marginatum ticks in the central Anatolian region of Turkey ( 7 ).…”

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Rickettsia sibirica mongolitimonae Infection, Turkey, 2016

Kuşçu¹,

Orkun²,

Ulu³

et al. 2017

Emerg. Infect. Dis.

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Assessment of bacterial diversity in Hyalomma aegyptium, H. marginatum and H. excavatum ticks through tag-encoded pyrosequencing

et al. 2017

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Ticks are among the most significant human-biting ectoparasites and they play a major role in transmission of many pathogenic agents to humans. In the present study, three species of Hyalomma ticks, Hyalomma aegyptium, H. marginatum and H. excavatum, were examined for the presence of zoonotic bacteria, both male and female ticks alike. Examination of microbial diversity with tag-encoded pyrosequencing indicates that H. marginatum and H. excavatum were more diversity rich than H. aegyptium. Although numerous pathogenic and non-pathogenic bacterial genera were detected, including Acidovorax, Bacillus, Bacteroides, Bdellovibrio, Clostridium, Curvibacter, Escherichia, Flavobacterium, Limnohabitans, Paenibacillus, Ralstonia, Sarcina, Sediminibacterium, Segetibacter Stenotrophomonas and Variovorax, the predominant zoonotic bacteria represented in these ticks were genera Borrelia, Francisella, and Rickettsia. To the authors' knowledge, this work represents the first detection of Yersinia enterocolitica in the tick H. excavatum, raising questions regarding the vector competency of this tick, as well as associations of different disease representations perhaps through previously unforeseen routes of pathogen introduction. Likewise, similar questions are related to the presence of Legionella pneumophila in one H. excavatum sample.

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Detection of Rickettsia aeschlimannii and Rickettsia sibirica mongolitimonae in Hyalomma marginatum (Acari: Ixodidae) ticks from Turkey

Cited by 11 publications

References 4 publications

Bacterial and protozoal pathogens found in ticks collected from humans in Corum province of Turkey

Bacterial and protozoal pathogens found in ticks collected from humans in Corum province of Turkey

Rickettsia sibirica mongolitimonae Infection, Turkey, 2016

Assessment of bacterial diversity in Hyalomma aegyptium, H. marginatum and H. excavatum ticks through tag-encoded pyrosequencing

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