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dc.contributor.authorYtrehus, Bjørnar
dc.contributor.authorRocchi, Mara
dc.contributor.authorBrandsegg, Hege
dc.contributor.authorTurnbull, Dylan
dc.contributor.authorMiller, Andrea L.
dc.contributor.authorPedersen, Hans Christian
dc.contributor.authorKålås, John Atle
dc.contributor.authorNilsen, Erlend Birkeland
dc.coverage.spatialNoreg, Norge, Norwayen_US
dc.date.accessioned2022-08-10T07:10:34Z
dc.date.available2022-08-10T07:10:34Z
dc.date.created2021-01-27T14:45:09Z
dc.date.issued2021
dc.identifier.issn0090-3558
dc.identifier.urihttps://hdl.handle.net/11250/3010961
dc.description.abstractIn Norway, the Willow Ptarmigan (Lagopus lagopus lagopus) is experiencing population declines and is nationally Red Listed as Near Threatened. Although disease has not generally been regarded as an important factor behind population fluctuations for Willow Ptarmigan in Norway, disease occurrence has been poorly investigated. Both louping-ill virus (LIV) and the closely related tick-borne encephalitis virus are found along the southern part of the Norwegian coast. We assessed whether and where Norwegian Willow Ptarmigan populations have been infected with LIV. We expected to find infected individuals in populations in the southernmost part of the country. We did not expect to find infected individuals in populations further north and at higher altitudes because of the absence of the main vector, the sheep tick (Ixodes ricinus). We collected serum samples on Nobuto filter paper and used a hemagglutination inhibition assay for antibodies against LIV. We collected data at both local and country-wide levels. For local sampling, we collected and analyzed 87 hunter-collected samples from one of the southernmost Willow Ptarmigan populations in Norway. Of these birds, only three positives (3.4%) were found. For the country-wide sampling, we collected serum samples from 163 Willow Ptarmigan carcasses submitted from selected locations all over the country. Of these birds, 32% (53) were seropositive for LIV or a cross-reacting virus. Surprisingly, we found seropositive individuals from locations across the whole country, including outside the known distribution of the sheep tick. These results suggest that either LIV or a cross-reacting virus infects ptarmigan in large parts of Norway, including at high altitudes and latitudes. Lagopus lagopus, louping-ill virus, ptarmigan, serosurvey, tick-borne viruses.en_US
dc.language.isoengen_US
dc.subjectLagopus lagopusen_US
dc.subjectlouping-ill virusen_US
dc.subjectptarmiganen_US
dc.subjectserosurveyen_US
dc.subjecttick-borne virusesen_US
dc.titleLouping-ill virus serosurvey of willow ptarmigan (Lagopus Lagopus Lagopus) in Norwayen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.subject.nsiVDP::Zoologiske og botaniske fag: 480en_US
dc.subject.nsiVDP::Zoology and botany: 480en_US
dc.source.volume57en_US
dc.source.journalJournal of Wildlife Diseasesen_US
dc.source.issue2en_US
dc.identifier.doi10.7589/JWD-D-20-00068
dc.identifier.cristin1880455
dc.relation.projectEgen institusjon: Norwegian institute for nature research (NINA)en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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