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The distribution li...
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Hvidsten, D.Univ Hosp North Norway, Norway; Nordland Hosp, Norway
(author)
The distribution limit of the common tick, Ixodes ricinus, and some associated pathogens in north-western Europe
- Article/chapterEnglish2020
Publisher, publication year, extent ...
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Elsevier,2020
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:liu-170171
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-170171URI
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https://doi.org/10.1016/j.ttbdis.2020.101388DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Funding Agencies|Medical Research Council of Southeast Sweden (FORSS) [657881]; Division of Laboratory Medicine, Region Jonkoping County, Sweden; EFSA; European Food Safety Authority; ECDC, the European Centre for Disease Prevention and Control; Northern Norway Regional Health Authority (Helse Nord RHF), Norway [SFP912-10]
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In north-western Europe, the common tick, Ixodes ricinus, is widely established, its distribution appears to be increasing and the spread of tick-borne diseases is of increasing concern. The project Flatt i Nord (Ticks in northern Norway) commenced in spring 2009 with the intention of studying the ticks distribution and that of its pathogens in northern Norway. Several methods were used: cloth-dragging, collecting from trapped small mammals, and collecting from pets. Since 2010, the occurrence of ticks in the region of northern Norway was determined directly by cloth-dragging 167 times in 109 separate locations between the latitudes of 64 degrees N and 70 degrees N (included seven locations in the northern part of Trondelag County). The northernmost location of a permanent I. ricinus population was found to be Nordoyvagen (66.2204 degrees N, 12.59 degrees E) on the Island of Donna. In a sample of 518 nymphal and adult ticks, the Borrelia prevalence collected close to this distribution limit varied but was low (1-15 %) compared with the locations in Trondelag, south of the study area (15-27 %). Five specimens (1 %) were positive for Rickettsia helvetica. The length of the vegetation growing season (GSL) can be used as an approximate index for the presence of established populations of I. ricinus. The present study suggests that the threshold GSL for tick establishment is about 170 days, because the median GSL from 1991 to 2015 was 174-184 days at sites with permanent tick populations, showing a clear increase compared with the period 1961-1990. This apparent manifestation of climate change could explain the northward extension of the range of I. ricinus.
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Frafjord, K.UiT Arctic Univ Norway, Norway
(author)
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Gray, J. S.Univ Coll Dublin, Ireland
(author)
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Jonsson Henningsson, AnnaLinköpings universitet,Avdelningen för inflammation och infektion,Medicinska fakulteten,Clinical Microbiology, Region Jönköping County, Sweden(Swepub:liu)annjo26
(author)
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Jenkins, A.Univ South Eastern Norway, Norway
(author)
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Kristiansen, B. E.Skiensgate 21, Norway
(author)
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Lager, MalinLinköpings universitet,Avdelningen för inflammation och infektion,Medicinska fakulteten,Department of Clinical Microbiology, Region Jönköping County, Sweden(Swepub:liu)malch76
(author)
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Rognerud, B.Univ Oslo, Norway
(author)
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Slatsve, A. M.Nordland Hosp, Norway
(author)
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Stordal, F.Univ Oslo, Norway
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Stuen, S.Norwegian Univ Life Sci, Norway
(author)
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Wilhelmsson, PeterLinköpings universitet,Avdelningen för inflammation och infektion,Medicinska fakulteten(Swepub:liu)petwi60
(author)
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Univ Hosp North Norway, Norway; Nordland Hosp, NorwayUiT Arctic Univ Norway, Norway
(creator_code:org_t)
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In:Ticks and Tick-borne Diseases: Elsevier11:41877-959X1877-9603
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Hvidsten, D.
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Frafjord, K.
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Gray, J. S.
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Jonsson Hennings ...
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Jenkins, A.
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Kristiansen, B. ...
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Lager, Malin
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Rognerud, B.
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Slatsve, A. M.
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Stordal, F.
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