Evidence map›Paper›PMID 32727555›Full record

ArticleParasites & vectors2020

Questing abundance of adult taiga ticks Ixodes persulcatus and their Borrelia prevalence at the north-western part of their distribution.

Veli-Matti Pakanen, Jani J Sormunen, Ella Sippola, Donald Blomqvist, Eva R Kallio

Abstract read
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Article in Parasites & vectors, 2020. 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
–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

19 citing papers in PubMed.

  1. Article
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  7. Analysis of the Microbial Community Structure ofAnimals : an open access journal from MDPI · 2025
    Article
  8. Article
  9. Article
  10. Seasonal Activity of Adult TicksAnimals : an open access journal from MDPI · 2023
    Article
  11. Article
  12. Geographical distribution ofOne health (Amsterdam, Netherlands) · 2023
    Article
  13. Article
  14. Article
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  18. Review
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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

5 authors.

Veli-Matti PakanenDepartment of Biological and Environmental Sciences, University of Gothenburg, P.O. Box 463, Gothenburg, 40530, Sweden. veli-matti.pakanen@oulu.fi.ORCID http://orcid.org/0000-0003-4838-9927
Jani J SormunenBiodiversity Unit, University of Turku, 20014, Turku, Finland.
Ella SippolaDepartment of Biology, University of Turku, 20014, Turku, Finland.
Donald BlomqvistDepartment of Biological and Environmental Sciences, University of Gothenburg, P.O. Box 463, Gothenburg, 40530, Sweden.
Eva R KallioDepartment of Biological and Environmental Science, University of Jyväskylä, P.O. Box 35, 40041, Jyväskylä, Finland.

Funding

Academy of Finland 329308Academy of Finland 329332
6 · The paper itself

Abstract

backgroundBecause ixodid ticks are vectors of zoonotic pathogens, including Borrelia, information of their abundance, seasonal variation in questing behaviour and pathogen prevalence is important for human health. As ticks are invading new areas northwards, information from these new areas are needed. Taiga tick (Ixodes persulcatus) populations have been recently found at Bothnian Bay, Finland. We assessed seasonal variation in questing abundance of ticks and their pathogen prevalence in coastal deciduous forests near the city of Oulu (latitudes 64-65°) in 2019.

methodsWe sampled ticks from May until September by cloth dragging 100 meters once a month at eight study sites. We calculated a density index (individuals/100 m

resultsAll except one nymph were identified as I. persulcatus. The number of questing adults showed a strong peak in May (median: 6.5 adults/100 m

conclusionsThe coastal forest environments at Bothnian Bay seem to provide favourable environments for I. persulcatus and the spread of Borrelia. High tick abundance, a low diversity of the host community and similar host use among larvae and nymphs likely explain the high Borrelia prevalence and coinfection rate. Research on the infestation of the hosts that quantifies the temporal dynamics of immature life stages would reveal important aspects of pathogen circulation in these tick populations.

Indexed as

BorreliaAnimalsEncephalitis, Tick-BorneEncephalitis Viruses, Tick-BorneFinlandHumansIxodesLarvaLyme DiseasePrevalenceSeasonsTick InfestationsCoastal forestCo-infectionFinlandIxodes persulcatusTemporal tick dynamics

Identifiers

PMID32727555
PMCPMC7391513

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.