Evidence map›Paper›PMID 30867015›Full record

ArticleParasites & vectors2019

Repeated isolation of tick-borne encephalitis virus from adult Dermacentor reticulatus ticks in an endemic area in Germany.

Lidia Chitimia-Dobler, Giulia Lemhöfer, Nina Król, Malena Bestehorn, Gerhard Dobler, Martin Pfeffer

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 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
6.5field-weighted citation impact, top 2% 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

35 citing papers in PubMed, 66 citations in OpenAlex.

  1. Article
  2. Microorganisms inInternational journal for parasitology. Parasites and wildlife · 2026
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  14. Review
  15. The known unknowns of Powassan virus ecology.Journal of medical entomology · 2023
    Review
  16. Tick-Borne Encephalitis-Review of the Current Status.Journal of clinical medicine · 2023
    Review
  17. Genetic Diversity ofLife (Basel, Switzerland) · 2023
    Article
  18. Article
  19. Article
  20. Food-Borne Transmission of Tick-Borne Encephalitis Virus-Spread, Consequences, and Prophylaxis.International journal of environmental research and public health · 2022
    Review
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 4 institutions in 1 country.

Lidia Chitimia-DoblerBundeswehr Institute of Microbiology, Neuherbergstrasse 11, 80937, Munich, Germany.
Giulia LemhöferBundeswehr Institute of Microbiology, Neuherbergstrasse 11, 80937, Munich, Germany.
Nina KrólInstitute of Animal Hygiene and Veterinary Public Health, Faculty of Veterinary Medicine, University of Leipzig, An den Tierkliniken 1, 04103, Leipzig, Germany.
Malena BestehornParasitology Unit, University of Hohenheim, Emil-Wolff-Str. 35, 70599, Stuttgart, Germany.
Gerhard DoblerBundeswehr Institute of Microbiology, Neuherbergstrasse 11, 80937, Munich, Germany.
Martin PfefferInstitute of Animal Hygiene and Veterinary Public Health, Faculty of Veterinary Medicine, University of Leipzig, An den Tierkliniken 1, 04103, Leipzig, Germany. pfeffer@vetmed.uni-leipzig.de.
Leipzig University · DEUniversity of Hohenheim · DEInstitut für Mikrobiologie der BundeswehrUniversität der Bundeswehr München · DE

Funding

Bundesministerium für Bildung und Forschung TBENAGER 01Kl1728DPfizer Pharma GmbH Berlin (DE) WI211158
6 · The paper itself

Abstract

backgroundTick-borne encephalitis (TBE) virus is transmitted to humans and animals through tick bites and is thought to circulate in very strictly defined natural environments called natural foci. The most common tick serving as a vector for the TBE virus in central Europe is Ixodes ricinus; it is rarely found in other tick species and in Dermacentor reticulatus it has, so far, only been reported in Poland.

methodsBetween autumn 2016 and spring 2018 ticks were collected by the flagging method in a new TBE focus in the district of northern Saxony, Germany, outside the known risk areas as defined by the national Robert Koch Institute. Ticks were morphologically identified and tested in pools for the presence of TBE virus using a real-time RT-PCR. TBE virus from positive pools was isolated in A549 cells, and the E gene sequences were determined after conventional RT-PCR, followed by a phylogenetic comparison.

resultsTBE virus was detected in 11 pools, 9 times in flagged adults D. reticulatus (n = 1534; MIR: 0.59%, CI: 0.29-11.3%) and only twice in I. ricinus nymphs (n = 349; MIR: 0.57%, CI: 0.02-2.2%). All other ticks, I. ricinus males (n = 33), females (n = 30) and larvae (n = 58), as well as 5 I. inopinatus (2 females, 3 males) and 14 Haemaphysalis concinna (3 females, 11 nymphs), tested negative for TBE virus. TBE virus was not detected in I. ricinus during the summer, when D. reticulatus is not active. Sequence comparison of the entire E gene of the isolated virus strains resembled each other with only 3 nucleotide differences. The most closely related viral sequences belong to TBE virus strains from Poland and Neustadt an der Waldnaab (county of Neustadt an der Waldnaab, Bavaria), approximately 200 km east and 200 km south-west of the new focus, respectively.

conclusionsTBE virus was found in northern Saxony, Germany, with similar MIRs in D. reticulatus and I. ricinus, indicating that D. reticulatus plays an equal role to I. ricinus in virus circulation when both tick species are sympatric.

Indexed as

Endemic DiseasesAnimalsArachnid VectorsDermacentorEncephalitis, Tick-BorneEncephalitis Viruses, Tick-BorneFemaleGermanyHumansIxodesMaleNymphPhylogenyReal-Time Polymerase Chain ReactionSeasonsDermacentor reticulatusGermanySaxonyTBE virus

Identifiers

PMID30867015
PMCPMC6416925
OpenAlexW2947003093

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.