New tick-borne encephalitis virus hot spot in Northern Zealand, Denmark, October 2019

Charlotte N. Agergaard; Maiken W. Rosenstierne; René Bødker; Morten Rasmussen; Peter H.S. Andersen; Anders Fomsgaard

doi:10.2807/1560-7917.ES.2019.24.43.1900639

New tick-borne encephalitis virus hot spot in Northern Zealand, Denmark, October 2019

Charlotte N. Agergaard, Maiken W. Rosenstierne, René Bødker, Morten Rasmussen, Peter H.S. Andersen, Anders Fomsgaard

6 Citations (Scopus)

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Abstract

During summer 2019, three patients residing by Tisvilde Hegn, Denmark were hospitalised with tick-borne encephalitis (TBE) after tick bites. A new TBE virus (TBEV) micro-focus was identified in tick nymphs collected around a playground in Tisvilde Hegn forest. Estimated TBEV prevalence was 8%, higher than in endemic areas around Europe. Whole genome sequencing showed clustering to a TBEV strain from Norway. This is the second time TBEV is found in Ixodes ricinus outside Bornholm, Denmark. Tick-borne encephalitis virus (TBEV), a member of the family Flaviviridae, genus flavivirus, causes tick-borne encephalitis (TBE). In Denmark, TBE is endemic only on the island Bornholm, with an incidence of 4 per 100,000 inhabitants per year [1,2]. Here we report three clinical cases of TBE in patients hospitalised within a month and all residing at the boundary of the same forest, Tisvilde Hegn, in Northern Zealand.

Original language	English
Journal	Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin
Volume	24
Issue number	43
ISSN	1025-496X
DOIs	https://doi.org/10.2807/1560-7917.ES.2019.24.43.1900639
Publication status	Published - 24 Oct 2019

Keywords

Denmark
Ixodes ricinus
meningoencephalitis
Northern Zealand
phylogenetic analysis
Tick-borne encephalitis
tick-borne encephalitis virus

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New tick-borne encephalitis virus hot spot in Northern Zealand, Denmark, October 2019Final published version, 1.04 MBLicence: CC BY

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Agergaard, C. N., Rosenstierne, M. W., Bødker, R., Rasmussen, M., Andersen, P. H. S., & Fomsgaard, A. (2019). New tick-borne encephalitis virus hot spot in Northern Zealand, Denmark, October 2019. Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin, 24(43). https://doi.org/10.2807/1560-7917.ES.2019.24.43.1900639

New tick-borne encephalitis virus hot spot in Northern Zealand, Denmark, October 2019. / Agergaard, Charlotte N.; Rosenstierne, Maiken W.; Bødker, René et al.
In: Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin, Vol. 24, No. 43, 24.10.2019.

Research output: Contribution to journal › Journal article › Research › peer-review

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title = "New tick-borne encephalitis virus hot spot in Northern Zealand, Denmark, October 2019",

abstract = "During summer 2019, three patients residing by Tisvilde Hegn, Denmark were hospitalised with tick-borne encephalitis (TBE) after tick bites. A new TBE virus (TBEV) micro-focus was identified in tick nymphs collected around a playground in Tisvilde Hegn forest. Estimated TBEV prevalence was 8%, higher than in endemic areas around Europe. Whole genome sequencing showed clustering to a TBEV strain from Norway. This is the second time TBEV is found in Ixodes ricinus outside Bornholm, Denmark. Tick-borne encephalitis virus (TBEV), a member of the family Flaviviridae, genus flavivirus, causes tick-borne encephalitis (TBE). In Denmark, TBE is endemic only on the island Bornholm, with an incidence of 4 per 100,000 inhabitants per year [1,2]. Here we report three clinical cases of TBE in patients hospitalised within a month and all residing at the boundary of the same forest, Tisvilde Hegn, in Northern Zealand.",

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AB - During summer 2019, three patients residing by Tisvilde Hegn, Denmark were hospitalised with tick-borne encephalitis (TBE) after tick bites. A new TBE virus (TBEV) micro-focus was identified in tick nymphs collected around a playground in Tisvilde Hegn forest. Estimated TBEV prevalence was 8%, higher than in endemic areas around Europe. Whole genome sequencing showed clustering to a TBEV strain from Norway. This is the second time TBEV is found in Ixodes ricinus outside Bornholm, Denmark. Tick-borne encephalitis virus (TBEV), a member of the family Flaviviridae, genus flavivirus, causes tick-borne encephalitis (TBE). In Denmark, TBE is endemic only on the island Bornholm, with an incidence of 4 per 100,000 inhabitants per year [1,2]. Here we report three clinical cases of TBE in patients hospitalised within a month and all residing at the boundary of the same forest, Tisvilde Hegn, in Northern Zealand.

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KW - phylogenetic analysis

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KW - tick-borne encephalitis virus

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JF - Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin

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ER -

New tick-borne encephalitis virus hot spot in Northern Zealand, Denmark, October 2019

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