Distribution of Neoehrlichia mikurensis in Ixodes ricinus ticks along the coast of Norway: The western seaboard is a low-prevalence region
Neoehrlichia mikurensis is a tick‐borne pathogen widespread among ticks and rodents in Europe and Asia. A previous study on Ixodes ricinus ticks in Norway suggested that N. mikurensis was scarce or absent on the south‐west coast of Norway, but abundant elsewhere. The aim of this study was to further...
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ftunivmob:oai:nmbu.brage.unit.no:11250/2661588 2024-09-15T18:00:29+00:00 Distribution of Neoehrlichia mikurensis in Ixodes ricinus ticks along the coast of Norway: The western seaboard is a low-prevalence region Pedersen, Benedikte Nevjen Jenkins, Andrew Paulsen, Katrine Mørk Yohanns B, Okbaldet Edgar, Kristin Skarsfjord Lamsal, Alaka Soleng, Arnulf Andreassen, Åshild Kristine 2019-12-19T13:47:50Z application/pdf https://hdl.handle.net/11250/2661588 https://doi.org/10.1111/zph.12662 eng eng Helse- og omsorgsdepartementet: Barentsregionsprosjektet B1412 Zoonoses and Public Health. 2019, urn:issn:1863-1959 https://hdl.handle.net/11250/2661588 https://doi.org/10.1111/zph.12662 cristin:1763016 Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no 1-8 Zoonoses and Public Health Peer reviewed Journal article 2019 ftunivmob https://doi.org/10.1111/zph.12662 2024-07-19T03:05:57Z Neoehrlichia mikurensis is a tick‐borne pathogen widespread among ticks and rodents in Europe and Asia. A previous study on Ixodes ricinus ticks in Norway suggested that N. mikurensis was scarce or absent on the south‐west coast of Norway, but abundant elsewhere. The aim of this study was to further investigate the prevalence and distribution of N. mikurensis along the western seaboard of Norway in comparison with more eastern and northern areas. The second aim of the study was to examine seasonal variation of the bacterium in one specific location in the south‐eastern part of Norway. Questing I. ricinus were collected from 13 locations along the coast of Norway, from Brønnøysund in Nordland County to Spjærøy in Østfold County. In total, 11,113 nymphs in 1,113 pools and 718 individual adult ticks were analysed for N. mikurensis by real‐time PCR. The mean prevalence of N. mikurensis in adult ticks was 7.9% while the estimated pooled prevalence in nymphs was 3.5%. The prevalence ranged from 0% to 25.5%, with the highest prevalence in the southernmost and the northernmost locations. The pathogen was absent, or present only at low prevalence (<5%), at eight locations, all located in the west, from 58.9°N to 64.9°N. The prevalence of N. mikurensis was significantly different between counties (p < .0001). No significant seasonal variation of N. mikurensis prevalence was observed in the period May to October 2015. Our results confirm earlier findings of a low prevalence of N. mikurensis in the western seaboard of Norway. publishedVersion Article in Journal/Newspaper Brønnøysund Nordland Nordland Nordland Open archive Norwegian University of Life Sciences: Brage NMBU Zoonoses and Public Health 67 2 130 137 |
institution |
Open Polar |
collection |
Open archive Norwegian University of Life Sciences: Brage NMBU |
op_collection_id |
ftunivmob |
language |
English |
description |
Neoehrlichia mikurensis is a tick‐borne pathogen widespread among ticks and rodents in Europe and Asia. A previous study on Ixodes ricinus ticks in Norway suggested that N. mikurensis was scarce or absent on the south‐west coast of Norway, but abundant elsewhere. The aim of this study was to further investigate the prevalence and distribution of N. mikurensis along the western seaboard of Norway in comparison with more eastern and northern areas. The second aim of the study was to examine seasonal variation of the bacterium in one specific location in the south‐eastern part of Norway. Questing I. ricinus were collected from 13 locations along the coast of Norway, from Brønnøysund in Nordland County to Spjærøy in Østfold County. In total, 11,113 nymphs in 1,113 pools and 718 individual adult ticks were analysed for N. mikurensis by real‐time PCR. The mean prevalence of N. mikurensis in adult ticks was 7.9% while the estimated pooled prevalence in nymphs was 3.5%. The prevalence ranged from 0% to 25.5%, with the highest prevalence in the southernmost and the northernmost locations. The pathogen was absent, or present only at low prevalence (<5%), at eight locations, all located in the west, from 58.9°N to 64.9°N. The prevalence of N. mikurensis was significantly different between counties (p < .0001). No significant seasonal variation of N. mikurensis prevalence was observed in the period May to October 2015. Our results confirm earlier findings of a low prevalence of N. mikurensis in the western seaboard of Norway. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Pedersen, Benedikte Nevjen Jenkins, Andrew Paulsen, Katrine Mørk Yohanns B, Okbaldet Edgar, Kristin Skarsfjord Lamsal, Alaka Soleng, Arnulf Andreassen, Åshild Kristine |
spellingShingle |
Pedersen, Benedikte Nevjen Jenkins, Andrew Paulsen, Katrine Mørk Yohanns B, Okbaldet Edgar, Kristin Skarsfjord Lamsal, Alaka Soleng, Arnulf Andreassen, Åshild Kristine Distribution of Neoehrlichia mikurensis in Ixodes ricinus ticks along the coast of Norway: The western seaboard is a low-prevalence region |
author_facet |
Pedersen, Benedikte Nevjen Jenkins, Andrew Paulsen, Katrine Mørk Yohanns B, Okbaldet Edgar, Kristin Skarsfjord Lamsal, Alaka Soleng, Arnulf Andreassen, Åshild Kristine |
author_sort |
Pedersen, Benedikte Nevjen |
title |
Distribution of Neoehrlichia mikurensis in Ixodes ricinus ticks along the coast of Norway: The western seaboard is a low-prevalence region |
title_short |
Distribution of Neoehrlichia mikurensis in Ixodes ricinus ticks along the coast of Norway: The western seaboard is a low-prevalence region |
title_full |
Distribution of Neoehrlichia mikurensis in Ixodes ricinus ticks along the coast of Norway: The western seaboard is a low-prevalence region |
title_fullStr |
Distribution of Neoehrlichia mikurensis in Ixodes ricinus ticks along the coast of Norway: The western seaboard is a low-prevalence region |
title_full_unstemmed |
Distribution of Neoehrlichia mikurensis in Ixodes ricinus ticks along the coast of Norway: The western seaboard is a low-prevalence region |
title_sort |
distribution of neoehrlichia mikurensis in ixodes ricinus ticks along the coast of norway: the western seaboard is a low-prevalence region |
publishDate |
2019 |
url |
https://hdl.handle.net/11250/2661588 https://doi.org/10.1111/zph.12662 |
genre |
Brønnøysund Nordland Nordland Nordland |
genre_facet |
Brønnøysund Nordland Nordland Nordland |
op_source |
1-8 Zoonoses and Public Health |
op_relation |
Helse- og omsorgsdepartementet: Barentsregionsprosjektet B1412 Zoonoses and Public Health. 2019, urn:issn:1863-1959 https://hdl.handle.net/11250/2661588 https://doi.org/10.1111/zph.12662 cristin:1763016 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no |
op_doi |
https://doi.org/10.1111/zph.12662 |
container_title |
Zoonoses and Public Health |
container_volume |
67 |
container_issue |
2 |
container_start_page |
130 |
op_container_end_page |
137 |
_version_ |
1810437645606584320 |