Browsing USN Open Archive by Author "Andreassen, Åshild Kristine"
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Cervids as sentinel-species for tick-borne encephalitis virus in Norway - A serological study
Paulsen, Katrine Mørk; Das Neves, Carlos G; Granquist, Erik Georg; Madslien, Knut Ivar Engesæter; Stuen, Snorre; Pedersen, Benedikte Nevjen; Vikse, Rose; Rocchi, Mara; Laming, Eleanor; Stiasny, Karin; Andreassen, Åshild Kristine (Journal article; Peer reviewed, 2019)Tick‐borne encephalitis virus (TBEV) is the causative agent of tick‐borne encephalitis (TBE). TBEV is one of the most important neurological pathogens transmitted by tick bites in Europe. The objectives of this study were ... -
Detection of Candidatus Neoehrlichia mikurensis in Norway up to the northern limit of Ixodes ricinus distribution using a novel real time PCR test targeting the groEL gene
Jenkins, Andrew; Raasok, Cecilie; Pedersen, Benedikte Nevjen; Jensen, Kristine; Andreassen, Åshild Kristine; Soleng, Arnulf; Edgar, Kristin Skarsfjord; Lindstedt, Heidi Elisabeth H.; Kjelland, Vivian; Stuen, Snorre; Hvidsten, Dag; Kristiansen, Bjørn Erik (Journal article; Peer reviewed, 2019)Background Candidatus Neoehrlichia mikurensis is an emerging tick-borne pathogen. It is widely distributed in Ixodes ricinus ticks in Europe, but knowledge of its distribution in Norway, where I. ricinus reaches its ... -
Development of a Real‑Time PCR Method for the Detection of European and Siberian Subtypes of Tick‑Borne Encephalitis Virus
Pedersen, Benedikte Nevjen; Jenkins, Andrew; Paulsen, Katrine Mørk; Basset, Coraline; Andreassen, Åshild Kristine (Peer reviewed; Journal article, 2023)The tick-borne encephalitis virus (TBEV) is transmitted to humans through tick bites. In recent years, the appearance of the Siberian subtype of TBEV in Ixodes ricinus in Finland, together with deaths from the normally ... -
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 (Journal article; Peer reviewed, 2019)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 ... -
Experimental infection of lambs with tick-borne encephalitis virus and co-infection with Anaplasma phagocytophilum.
Paulsen, Katrine Mørk; Granquist, Erik Georg; Okstad, Wenche; Andreassen, Åshild Kristine; Stuen, Snorre; Vikse, Rose; Stiasny, Karin (Journal article; Peer reviewed, 2019)Tick-borne encephalitis virus (TBEV) is a zoonotic pathogen which may cause tick-borne encephalitis (TBE) in humans and animals. More than 10,000 cases of TBE are reported annually in Europe and Asia. However, the knowledge ... -
Inkoo and Sindbis viruses in blood sucking insects, and a serological study for Inkoo virus in semi-domesticated Eurasian tundra reindeer in Norway
Shakya, Ruchika; Tryland, Morten; Vikse, Rose; Romano, Javier Sánchez; Åsbakk, Kjetil; Nymo, Ingebjørg Helena; Mehl, Reidar Arne; Evander, Magnus; Ahlm, Clas; Vapalahti, Olli; Lwande, Olivia Wesula; Putkuri, Niina; Johansen, Wenche; Soleng, Arnulf; Edgar, Kristin Skarsfjord; Andreassen, Åshild Kristine (Peer reviewed; Journal article, 2022)Background: Mosquito-borne viruses pose a serious threat to humans worldwide. There has been an upsurge in the number of mosquito-borne viruses in Europe, mostly belonging to the families Togaviridae, genus Alphavirus ... -
Low prevalence of tick-borne encephalitis virus antibodies in Norwegian blood donors
Marvik, Åshild; Tveten, Yngvar; Pedersen, Anne-Berit; Stiasny, Karin; Andreassen, Åshild Kristine; Grude, Nils (Peer reviewed; Journal article, 2020)Background: Tick-borne encephalitis (TBE) constitutes a public health concern in Europe. Certain coastal municipalities in southern Norway are considered TBE risk areas and in the last two years, there have been increasing ... -
Prevalence of tick-borne encephalitis virus in questing Ixodes ricinus nymphs in southern Scandinavia and the possible influence of meteorological factors
Lamsal, Alaka; Edgar, Kristin Skarsfjord; Jenkins, Andrew; Renssen, Hans; Kjær, Lene Jung; Alfsnes, Kristian; Bastakoti, Srijana; Dieseth, Malene Strøm; Klitgaard, Kirstine; Lindstedt, Heidi Elisabeth Heggen; Paulsen, Katrine Mørk; Vikse, Rose; Korslund, Lars; Kjelland, Vivian; Stuen, Snorre; Kjellander, Petter; Christensson, Madeleine; Teräväinen, Malin; Jensen, Laura Mark; Regmi, Manoj; Giri, Dhiraj; Marsteen, Leif; Bødker, René; Soleng, Arnulf; Andreassen, Åshild Kristine (Peer reviewed; Journal article, 2023)Ixodes ricinus ticks are Scandinavia's main vector for tick-borne encephalitis virus (TBEV), which infects many people annually. The aims of the present study were (i) to obtain information on the TBEV prevalence in ... -
Serological screening for tick-borne encephalitis virus in eight Norwegian herds of semi-domesticated reindeer (Rangifer tarandus tarandus)
Lamsal, Alaka; Tryland, Morten; Paulsen, Katrine M.; Romano, Javier Sánchez; Nymo, Ingebjørg H.; Stiasny, Karin; Soleng, Arnulf; Vikse, Rose; Andreassen, Åshild Kristine (Peer reviewed; Journal article, 2023)Tick-borne encephalitis virus (TBEV) is found in Ixodes ricinus ticks throughout the area where viable tick populations exist. In Norway, TBEV is found in I. ricinus from the south coast until Brønnøy municipality in ... -
Tick-transmitted co-infections among erythema migrans patients in a general practice setting in Norway: a clinical and laboratory follow-up study
Eliassen, Knut Eirik Ringheim; Ocias, Lukas; Krogfelt, Karen; Wilhelmsson, Peter; Dudman, Susanne; Andreassen, Åshild Kristine; Lindbæk, Morten; Lindgren, Per-Eric (Journal article; Peer reviewed, 2021)Background: Erythema migrans (EM) is the most common manifestation of Lyme borreliosis. Here, we examined EM patients in Norwegian general practice to find the proportion exposed to tick-transmitted microorganisms other ...