Evidence map›Paper›PMID 33168841›Full record

ArticleScientific reports2020

Spatial patterns of pathogen prevalence in questing Ixodes ricinus nymphs in southern Scandinavia, 2016.

Lene Jung Kjær, Kirstine Klitgaard, Arnulf Soleng, Kristin Skarsfjord Edgar, Heidi Elisabeth H Lindstedt, Katrine M Paulsen, Åshild Kristine Andreassen, Lars Korslund, Vivian Kjelland, Audun Slettan and 7 more

Abstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
–field-weighted citation impact
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

27 citing papers in PubMed.

  1. Distribution ofInternational journal for parasitology. Parasites and wildlife · 2026
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  2. Microorganisms inInternational journal for parasitology. Parasites and wildlife · 2026
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  10. Occurrence and prevalence of host-seekingCurrent research in parasitology & vector-borne diseases · 2025
    Article
  11. Heliyon · 2024
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  14. RMD open · 2024
    Article
  15. Spatial and temporal variation of five different pathogens and symbionts inCurrent research in parasitology & vector-borne diseases · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

17 authors.

Lene Jung KjærDepartment of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark. lenju@sund.ku.dk.ORCID 0000-0001-9659-4672
Kirstine KlitgaardDepartment for Diagnostics and Scientific Advice, National Veterinary Institute, Technical University of Denmark, Lyngby, Denmark.
Arnulf SolengDepartment of Pest Control, Norwegian Institute of Public Health, Oslo, Norway.
Kristin Skarsfjord EdgarDepartment of Pest Control, Norwegian Institute of Public Health, Oslo, Norway.
Heidi Elisabeth H LindstedtDepartment of Pest Control, Norwegian Institute of Public Health, Oslo, Norway.
Katrine M PaulsenDepartment of Virology, Norwegian Institute of Public Health, Oslo, Norway.
Åshild Kristine AndreassenDepartment of Virology, Norwegian Institute of Public Health, Oslo, Norway.
Lars KorslundDepartment of Natural Sciences, University of Agder, Kristiansand, Norway.
Vivian KjellandDepartment of Natural Sciences, University of Agder, Kristiansand, Norway.
Audun SlettanDepartment of Natural Sciences, University of Agder, Kristiansand, Norway.
Snorre StuenDepartment of Production Animal Clinical Sciences, Section of Small Ruminant Research, Norwegian University of Life Sciences, Sandnes, Norway.
Petter KjellanderDepartment of Ecology, Grimsö Wildlife Research Station, Swedish University of Agricultural Sciences, Riddarhyttan, Sweden.
Madeleine ChristenssonDepartment of Ecology, Grimsö Wildlife Research Station, Swedish University of Agricultural Sciences, Riddarhyttan, Sweden.
Malin TeräväinenDepartment of Ecology, Grimsö Wildlife Research Station, Swedish University of Agricultural Sciences, Riddarhyttan, Sweden.
Andreas BaumDepartment of Applied Mathematics and Computer Science, Technical University of Denmark, Lyngby, Denmark.
Laura Mark JensenDepartment of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark.
René BødkerDepartment of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tick-borne pathogens cause diseases in animals and humans, and tick-borne disease incidence is increasing in many parts of the world. There is a need to assess the distribution of tick-borne pathogens and identify potential risk areas. We collected 29,440 tick nymphs from 50 sites in Scandinavia from August to September, 2016. We tested ticks in a real-time PCR chip, screening for 19 vector-associated pathogens. We analysed spatial patterns, mapped the prevalence of each pathogen and used machine learning algorithms and environmental variables to develop predictive prevalence models. All 50 sites had a pool prevalence of at least 33% for one or more pathogens, the most prevalent being Borrelia afzelii, B. garinii, Rickettsia helvetica, Anaplasma phagocytophilum, and Neoehrlichia mikurensis. There were large differences in pathogen prevalence between sites, but we identified only limited geographical clustering. The prevalence models performed poorly, with only models for R. helvetica and N. mikurensis having moderate predictive power (normalized RMSE from 0.74-0.75, R

Indexed as

Models, BiologicalAnimalsHumansIxodesPrevalenceScandinavian and Nordic CountriesTick-Borne DiseasesTick Infestations

Identifiers

PMID33168841
PMCPMC7652892

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.