Evidence map›Paper›PMID 30635006›Full record

ArticleParasites & vectors2019

A cross-sectional screening by next-generation sequencing reveals Rickettsia, Coxiella, Francisella, Borrelia, Babesia, Theileria and Hemolivia species in ticks from Anatolia.

Annika Brinkmann, Olcay Hekimoğlu, Ender Dinçer, Peter Hagedorn, Andreas Nitsche, Koray Ergünay

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
4.3field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
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  4. Microbiological and molecular analysis of the microbiota of insects present in the surgical area.Antimicrobial stewardship & healthcare epidemiology : ASHE · 2025
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  6. Perception of Ticks and Tick-Borne Diseases Worldwide.Pathogens (Basel, Switzerland) · 2023
    Review
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  10. An Update on the Laboratory Diagnosis ofPathogens (Basel, Switzerland) · 2021
    Review
  11. Review
  12. Characterization of a novel transitional groupInternational journal of systematic and evolutionary microbiology · 2021
    Article
  13. Global Distribution ofPathogens (Basel, Switzerland) · 2021
    Review
  14. Review
  15. Article
  16. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Annika BrinkmannCenter for Biological Threats and Special Pathogens 1 (ZBS 1), Robert Koch Institute, 13353, Berlin, Germany.
Olcay HekimoğluDepartment of Biology, Division of Ecology, Hacettepe University, Faculty of Science, 06800, Ankara, Turkey.
Ender DinçerAdvanced Technology Education, Research and Application Center, Mersin University, 33110, Mersin, Turkey.
Peter HagedornCenter for Biological Threats and Special Pathogens 1 (ZBS 1), Robert Koch Institute, 13353, Berlin, Germany.
Andreas NitscheCenter for Biological Threats and Special Pathogens 1 (ZBS 1), Robert Koch Institute, 13353, Berlin, Germany.
Koray ErgünayCenter for Biological Threats and Special Pathogens 1 (ZBS 1), Robert Koch Institute, 13353, Berlin, Germany. ekoray@hacettepe.edu.tr.
Robert Koch Institute · DEHacettepe University · TRMersin Üniversitesi · TR

Funding

Alexander von Humboldt-Stiftung (DE) not applicable
6 · The paper itself

Abstract

backgroundTicks participate as arthropod vectors in the transmission of pathogenic microorganisms to humans. Several tick-borne infections have reemerged, along with newly described agents of unexplored pathogenicity. In an attempt to expand current information on tick-associated bacteria and protozoans, we performed a cross-sectional screening of ticks, using next-generation sequencing. Ticks seeking hosts and infesting domestic animals were collected in four provinces across the Aegean, Mediterranean and Central Anatolia regions of Turkey and analyzed by commonly used procedures and platforms.

resultsTwo hundred and eighty ticks comprising 10 species were evaluated in 40 pools. Contigs from tick-associated microorganisms were detected in 22 (55%) questing and 4 feeding (10%) tick pools, with multiple microorganisms identified in 12 pools. Rickettsia 16S ribosomal RNA gene, gltA, sca1 and ompA sequences were present in 7 pools (17.5%), comprising feeding Haemaphysalis parva and questing/hunting Rhipicephalus bursa, Rhipicephalus sanguineus (sensu lato) and Hyalomma marginatum specimens. A near-complete genome and conjugative plasmid of a Rickettsia hoogstraalii strain could be characterized in questing Ha. parva. Coxiella-like endosymbionts were identified in pools of questing (12/40) as well as feeding (4/40) ticks of the genera Rhipicephalus, Haemaphysalis and Hyalomma. Francisella-like endosymbionts were also detected in 22.5% (9/40) of the pools that comprise hunting Hyalomma ticks in 8 pools. Coxiella-like and Francisella-like endosymbionts formed phylogenetically distinct clusters associated with their tick hosts. Borrelia turcica was characterized in 5% (2/40) of the pools, comprising hunting Hyalomma aegyptium ticks. Co-infection of Coxiella-like endosymbiont and Babesia was noted in a questing R. sanguineus (s.l.) specimen. Furthermore, protozoan 18S rRNA gene sequences were detected in 4 pools of questing/hunting ticks (10%) and identified as Babesia ovis, Hemolivia mauritanica, Babesia and Theileria spp.

conclusionsOur metagenomic approach enabled identification of diverse pathogenic and non-pathogenic microorganisms in questing and feeding ticks in Anatolia.

Indexed as

AnimalsArthropodsArthropod VectorsBabesiaBacteriaBorreliaCoxiellaCross-Sectional StudiesFrancisellaHumansNucleic Acid Amplification TechniquesRickettsiaSpecies SpecificityTheileriaTicksTurkeyBabesiaBorreliaCoxiellaFrancisellaHemoliviaNext generation sequencingRickettsiaTheileraTickTurkey

Identifiers

PMID30635006
PMCPMC6329055
OpenAlexW2909010821

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.