A large-scale screening for the taiga tick, Ixodes persulcatus, and the meadow tick, Dermacentor reticulatus, in southern Scandinavia, 2016

Lene Jung Kjær*, Arnulf Soleng, Kristin Skarsfjord Edgar, Heidi Elisabeth H Lindstedt, Katrine Mørk Paulsen, Åshild Kristine Andreassen, Lars Korslund, Vivian Kjelland, Audun Slettan, Snorre Stuen, Petter Kjellander, Madeleine Christensson, Malin Teräväinen, Andreas Baum, Anastasia Isbrand, Laura Mark Jensen, Kirstine Klitgaard, Rene Bødker

*Corresponding author for this work

Research output: Contribution to journalLetterResearchpeer-review

52 Downloads (Pure)

Abstract

The taiga tick, Ixodes persulcatus, has previously been limited to eastern Europe and northern Asia, but recently its range has expanded to Finland and northern Sweden. The species is of medical importance, as it, along with a string of other pathogens, may carry the Siberian and Far Eastern subtypes of tick-borne encephalitis virus. These subtypes appear to cause more severe disease, with higher fatality rates than the central European subtype. Until recently, the meadow tick, Dermacentor reticulatus, has been absent from Scandinavia, but has now been detected in Denmark, Norway and Sweden. Dermacentor reticulatus carries, along with other pathogens, Babesia canis and Rickettsia raoultii. Babesia canis causes severe and often fatal canine babesiosis, and R. raoultii may cause disease in humans. We collected 600 tick nymphs from each of 50 randomly selected sites in Denmark, southern Norway and south-eastern Sweden in August-September 2016. We tested pools of 10 nymphs in a Fluidigm real time PCR chip to screen for I. persulcatus and D. reticulatus, as well as tick-borne pathogens. Of all the 30,000 nymphs tested, none were I. persulcatus or D. reticulatus. Our results suggest that I. persulcatus is still limited to the northern parts of Sweden, and have not expanded into southern parts of Scandinavia. According to literature reports and supported by our screening results, D. reticulatus may yet only be an occasional guest in Scandinavia without established populations.
Original languageEnglish
Article number338
JournalParasites and Vectors
Volume12
Issue number1
Number of pages4
ISSN1756-3305
DOIs
Publication statusPublished - 2019

Keywords

  • Dermacentor reticulatus
  • Ixodes persulcatus
  • Siberian and Far Eastern tick-borne encephalitis
  • Taiga tick
  • meadow tick
  • range expansion
  • southern Scandinavia

Cite this

Kjær, L. J., Soleng, A., Edgar, K. S., Lindstedt, H. E. H., Paulsen, K. M., Andreassen, Å. K., ... Bødker, R. (2019). A large-scale screening for the taiga tick, Ixodes persulcatus, and the meadow tick, Dermacentor reticulatus, in southern Scandinavia, 2016. Parasites and Vectors, 12(1), [338]. https://doi.org/10.1186/s13071-019-3596-3
Kjær, Lene Jung ; Soleng, Arnulf ; Edgar, Kristin Skarsfjord ; Lindstedt, Heidi Elisabeth H ; Paulsen, Katrine Mørk ; Andreassen, Åshild Kristine ; Korslund, Lars ; Kjelland, Vivian ; Slettan, Audun ; Stuen, Snorre ; Kjellander, Petter ; Christensson, Madeleine ; Teräväinen, Malin ; Baum, Andreas ; Isbrand, Anastasia ; Jensen, Laura Mark ; Klitgaard, Kirstine ; Bødker, Rene. / A large-scale screening for the taiga tick, Ixodes persulcatus, and the meadow tick, Dermacentor reticulatus, in southern Scandinavia, 2016. In: Parasites and Vectors. 2019 ; Vol. 12, No. 1.
@article{cdc870d65053470fbc66681621422a54,
title = "A large-scale screening for the taiga tick, Ixodes persulcatus, and the meadow tick, Dermacentor reticulatus, in southern Scandinavia, 2016",
abstract = "The taiga tick, Ixodes persulcatus, has previously been limited to eastern Europe and northern Asia, but recently its range has expanded to Finland and northern Sweden. The species is of medical importance, as it, along with a string of other pathogens, may carry the Siberian and Far Eastern subtypes of tick-borne encephalitis virus. These subtypes appear to cause more severe disease, with higher fatality rates than the central European subtype. Until recently, the meadow tick, Dermacentor reticulatus, has been absent from Scandinavia, but has now been detected in Denmark, Norway and Sweden. Dermacentor reticulatus carries, along with other pathogens, Babesia canis and Rickettsia raoultii. Babesia canis causes severe and often fatal canine babesiosis, and R. raoultii may cause disease in humans. We collected 600 tick nymphs from each of 50 randomly selected sites in Denmark, southern Norway and south-eastern Sweden in August-September 2016. We tested pools of 10 nymphs in a Fluidigm real time PCR chip to screen for I. persulcatus and D. reticulatus, as well as tick-borne pathogens. Of all the 30,000 nymphs tested, none were I. persulcatus or D. reticulatus. Our results suggest that I. persulcatus is still limited to the northern parts of Sweden, and have not expanded into southern parts of Scandinavia. According to literature reports and supported by our screening results, D. reticulatus may yet only be an occasional guest in Scandinavia without established populations.",
keywords = "Dermacentor reticulatus, Ixodes persulcatus, Siberian and Far Eastern tick-borne encephalitis, Taiga tick, meadow tick, range expansion, southern Scandinavia",
author = "Kj{\ae}r, {Lene Jung} and Arnulf Soleng and Edgar, {Kristin Skarsfjord} and Lindstedt, {Heidi Elisabeth H} and Paulsen, {Katrine M{\o}rk} and Andreassen, {{\AA}shild Kristine} and Lars Korslund and Vivian Kjelland and Audun Slettan and Snorre Stuen and Petter Kjellander and Madeleine Christensson and Malin Ter{\"a}v{\"a}inen and Andreas Baum and Anastasia Isbrand and Jensen, {Laura Mark} and Kirstine Klitgaard and Rene B{\o}dker",
year = "2019",
doi = "10.1186/s13071-019-3596-3",
language = "English",
volume = "12",
journal = "Parasites & Vectors",
issn = "1756-3305",
publisher = "BioMed Central",
number = "1",

}

Kjær, LJ, Soleng, A, Edgar, KS, Lindstedt, HEH, Paulsen, KM, Andreassen, ÅK, Korslund, L, Kjelland, V, Slettan, A, Stuen, S, Kjellander, P, Christensson, M, Teräväinen, M, Baum, A, Isbrand, A, Jensen, LM, Klitgaard, K & Bødker, R 2019, 'A large-scale screening for the taiga tick, Ixodes persulcatus, and the meadow tick, Dermacentor reticulatus, in southern Scandinavia, 2016', Parasites and Vectors, vol. 12, no. 1, 338. https://doi.org/10.1186/s13071-019-3596-3

A large-scale screening for the taiga tick, Ixodes persulcatus, and the meadow tick, Dermacentor reticulatus, in southern Scandinavia, 2016. / Kjær, Lene Jung; Soleng, Arnulf; Edgar, Kristin Skarsfjord; Lindstedt, Heidi Elisabeth H; Paulsen, Katrine Mørk; Andreassen, Åshild Kristine; Korslund, Lars; Kjelland, Vivian; Slettan, Audun; Stuen, Snorre; Kjellander, Petter; Christensson, Madeleine; Teräväinen, Malin; Baum, Andreas; Isbrand, Anastasia; Jensen, Laura Mark; Klitgaard, Kirstine; Bødker, Rene.

In: Parasites and Vectors, Vol. 12, No. 1, 338, 2019.

Research output: Contribution to journalLetterResearchpeer-review

TY - JOUR

T1 - A large-scale screening for the taiga tick, Ixodes persulcatus, and the meadow tick, Dermacentor reticulatus, in southern Scandinavia, 2016

AU - Kjær, Lene Jung

AU - Soleng, Arnulf

AU - Edgar, Kristin Skarsfjord

AU - Lindstedt, Heidi Elisabeth H

AU - Paulsen, Katrine Mørk

AU - Andreassen, Åshild Kristine

AU - Korslund, Lars

AU - Kjelland, Vivian

AU - Slettan, Audun

AU - Stuen, Snorre

AU - Kjellander, Petter

AU - Christensson, Madeleine

AU - Teräväinen, Malin

AU - Baum, Andreas

AU - Isbrand, Anastasia

AU - Jensen, Laura Mark

AU - Klitgaard, Kirstine

AU - Bødker, Rene

PY - 2019

Y1 - 2019

N2 - The taiga tick, Ixodes persulcatus, has previously been limited to eastern Europe and northern Asia, but recently its range has expanded to Finland and northern Sweden. The species is of medical importance, as it, along with a string of other pathogens, may carry the Siberian and Far Eastern subtypes of tick-borne encephalitis virus. These subtypes appear to cause more severe disease, with higher fatality rates than the central European subtype. Until recently, the meadow tick, Dermacentor reticulatus, has been absent from Scandinavia, but has now been detected in Denmark, Norway and Sweden. Dermacentor reticulatus carries, along with other pathogens, Babesia canis and Rickettsia raoultii. Babesia canis causes severe and often fatal canine babesiosis, and R. raoultii may cause disease in humans. We collected 600 tick nymphs from each of 50 randomly selected sites in Denmark, southern Norway and south-eastern Sweden in August-September 2016. We tested pools of 10 nymphs in a Fluidigm real time PCR chip to screen for I. persulcatus and D. reticulatus, as well as tick-borne pathogens. Of all the 30,000 nymphs tested, none were I. persulcatus or D. reticulatus. Our results suggest that I. persulcatus is still limited to the northern parts of Sweden, and have not expanded into southern parts of Scandinavia. According to literature reports and supported by our screening results, D. reticulatus may yet only be an occasional guest in Scandinavia without established populations.

AB - The taiga tick, Ixodes persulcatus, has previously been limited to eastern Europe and northern Asia, but recently its range has expanded to Finland and northern Sweden. The species is of medical importance, as it, along with a string of other pathogens, may carry the Siberian and Far Eastern subtypes of tick-borne encephalitis virus. These subtypes appear to cause more severe disease, with higher fatality rates than the central European subtype. Until recently, the meadow tick, Dermacentor reticulatus, has been absent from Scandinavia, but has now been detected in Denmark, Norway and Sweden. Dermacentor reticulatus carries, along with other pathogens, Babesia canis and Rickettsia raoultii. Babesia canis causes severe and often fatal canine babesiosis, and R. raoultii may cause disease in humans. We collected 600 tick nymphs from each of 50 randomly selected sites in Denmark, southern Norway and south-eastern Sweden in August-September 2016. We tested pools of 10 nymphs in a Fluidigm real time PCR chip to screen for I. persulcatus and D. reticulatus, as well as tick-borne pathogens. Of all the 30,000 nymphs tested, none were I. persulcatus or D. reticulatus. Our results suggest that I. persulcatus is still limited to the northern parts of Sweden, and have not expanded into southern parts of Scandinavia. According to literature reports and supported by our screening results, D. reticulatus may yet only be an occasional guest in Scandinavia without established populations.

KW - Dermacentor reticulatus

KW - Ixodes persulcatus

KW - Siberian and Far Eastern tick-borne encephalitis

KW - Taiga tick

KW - meadow tick

KW - range expansion

KW - southern Scandinavia

U2 - 10.1186/s13071-019-3596-3

DO - 10.1186/s13071-019-3596-3

M3 - Letter

C2 - 31288866

VL - 12

JO - Parasites & Vectors

JF - Parasites & Vectors

SN - 1756-3305

IS - 1

M1 - 338

ER -