• Ancient origin and genetic segregation of canine circovirus infecting arctic foxes (Vulpes lagopus) in Svalbard and red foxes (Vulpes vulpes) in Northern Norway 

      Urbani, Lorenza; Tryland, Morten; Ehrich, Dorothee; Fuglei, Eva; Battilani, Mara; Balboni, Andrea (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-12)
      Canine circovirus (CanineCV) is a relatively new viral species, belonging to the family <i>Circoviridae</i>, whose pathogenic role is still uncertain. Since its first description in one domestic dog in 2011 from the USA, several reports have been documenting its distribution worldwide. Recently, CanineCV was also detected in wild animals such as wolves, foxes and badgers. In order to investigate the ...
    • Assessment of benefits and risks of probiotics in processed cereal-based baby foods Lactobacillus paracasei ssp. paracasei F19 

      Halvorsen, Ragnhild; Lassen, Jørgen Fr; Midtvedt, Tore; Narvhus, Judith; Rugtveit, Jarle; Yazdankhah, Siamak Pour; Eckner, Karl Fredrich; Frølich, Wenche; Frøyland, Livar; Iversen, Per Ole; Kapperud, Georg; Lillegaard, Inger Therese L.; Lunestad, Bjørn Tore; Lyche, Jan Ludvig; Mansoor, Mohammad Azam; Meltzer, Helle Margrete; Nesbakken, Truls; Nygård, Karin Maria; Robertson, Lucy; Tranulis, Michael A.; Tryland, Morten; Haugen, Margaretha (Research report; Forskningsrapport, 2011-06-23)
      The Norwegian Scientific Committee for Food Safety (VKM) has appointed an ad hoc-group of experts to answer a request from the Norwegian Food Safety Authority regarding benefit and risk assessment of Lactobacillus paracasei ssp. paracasei F19 (F19) in processed cereal-based baby foods intended for small children 1-3 years. This assessment is based on the literature provided by the notifier as well ...
    • Assessment of benefits and risks of probiotics in baby foods Bifidobacterium lactis Bb12. 

      Halvorsen, Ragnhild; Narvhus, Judith; Lassen, Jørgen Fr; Midtvedt, Tore; Rugtveit, Jarle; Yazdankhah, Siamak Pour; Andersen, Lene Frost; Frølich, Wenche; Frøyland, Livar; Haugen, Margaretha; Høiby, Anne; Kapperud, Georg; Lunestad, Bjørn Tore; Meltzer, Helle Margrete; Nesbakken, Truls; Nygård, Karin Maria; Robertson, Lucy; Olsvik, Ørjan; Paulsen, Jan Erik; Tranulis, Michael A.; Tryland, Morten; Rimstad, Espen (Research report; Forskningsrapport, 2010-05-14)
      The Norwegian Scientific Committee for Food Safety (VKM) has appointed an ad hoc-group of experts to answer a request from the Norwegian Food Safety Authority regarding benefit and risk assessment of B. lactis Bb12 in baby foods focusing on the age groups 4-6 months, 6-12 months and 1-3 years. This assessment is based on the literature provided by the notifier as well as that found by a MEDLINE search.
    • Assessment of risk of introduction of Echinococcus multilocularis to mainland Norway 

      Robertson, Lucy; Tryland, Morten; Davidson, Rebecca K.; Eckner, Karl Fredrich; Kapperud, Georg; Lunestad, Bjørn Tore; Nesbakken, Truls; Nygård, Karin Maria; Tranulis, Michael A.; Yazdankhah, Siamak Pour; Lassen, Jørgen Fr (Research report; Forskningsrapport, 2012-02-15)
      In the light of the recent findings of the tapeworm Echinococcus multilocularis (EM) in four red foxes from three different locations in Sweden, the Norwegian Scientific Committee for Food Safety (Vitenskapskomiteen; VKM), Panel of Biological Hazards (Faggruppe hygiene og smittestoffer) took the initiative to undertake a risk assessment regarding the probability of this parasite being introduced to ...
    • Avipoxviruses : infection biology and their use as vaccine vectors 

      Weli, Simon Chioma; Tryland, Morten (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Avipoxviruses (APVs) belong to the Chordopoxvirinae subfamily of the Poxviridae family. APVs are distributed worldwide and cause disease in domestic, pet and wild birds of many species. APVs are transmitted by aerosols and biting insects, particularly mosquitoes and arthropods and are usually named after the bird species from which they were originally isolated. The virus species Fowlpox virus (FWPV) ...
    • Brucella antibodies in alaskan true seals and eared seals — two different stories 

      Nymo, Ingebjørg H.; Rødven, Rolf; Beckmen, Kimberlee; Larsen, Anett K.; Tryland, Morten; Quakenbush, Lori; Godfroid, Jacques (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-31)
      Brucella pinnipedialis was first isolated from true seals in 1994 and from eared seals in 2008. Although few pathological findings have been associated with infection in true seals, reproductive pathology including abortions, and the isolation of the zoonotic strain type 27 have been documented in eared seals. <br> In this study, a Brucella enzyme-linked immunosorbent assay (ELISA) and the Rose ...
    • Case report: Subclinical verminous pneumonia and high ambient temperatures had severe impact on the anesthesia of semi-domesticated Eurasian tundra reindeer (Rangifer tarandus tarandus) with medetomidine-ketamine 

      Tryland, Morten; Josefsen, Terje D.; Sanchez Romano, Javier; Marcin, Nina; Mørk, Torill; Arnemo, Jon Martin (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-24)
      Semidomesticated Eurasian tundra reindeer (<i>Rangifer tarandus tarandus, n</i> = 21) were scheduled twice for chemical immobilization with medetomidine–ketamine as part of a scientific experiment in June 2014. During the first round of immobilizations, seven animals developed severe respiratory depression (RD). Three individuals died, and 4 recovered. The ambient temperature during the 2 days of ...
    • Cervid herpesvirus 2 and not Moraxella bovoculi caused keratoconjunctivitis in experimentally inoculated semi-domesticated Eurasian tundra reindeer 

      Tryland, Morten; Sanchez Romano, Javier; Marcin, Nina; Nymo, Ingebjørg Helena; Josefsen, Terje Domaas; Sørensen, Karen Kristine; Mørk, Torill (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-04-24)
      Background: Infectious keratoconjunctivitis (IKC) is a transmissible disease in semi-domesticated Eurasian reindeer (Rangifer tarandus tarandus). It is regarded as multifactorial and a single causative pathogen has not yet been identified. From clinical outbreaks we have previously identified Cervid herpesvirus 2 (CvHV2) and Moraxella bovoculi as candidates for experimental investigations. Eighteen ...
    • Characterisation of parapoxviruses isolated from Norwegian semi-domesticated reindeer (Rangifer tarandus tarandus) 

      Klein, Jörn; Tryland, Morten (Journal article; Tidsskriftartikkel; Peer reviewed, 2005-09-05)
      Background: Two outbreaks of the disease contagious ecthyma were reported in 1999 and 2000 in Norwegian semi-domesticated reindeer (Rangifer tarandus tarandus). Contagious ecthyma is an epidermal disease of sheep and goats worldwide, which is caused by the zoonotic parapoxvirus orf virus. Characterisation of clinical samples from the two outbreaks in semi-domesticated reindeer in Norway by ...
    • Chlamydia pecorum associated with an outbreak of infectious keratoconjunctivitis in semi-domesticated reindeer in Sweden 

      Sanchez Romano, Javier; Leijon, Mikael; Hagström, Åsa; Jinnerot, Tomas; Rockström, Urlika; Tryland, Morten (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-05)
      Infectious keratoconjunctivitis (IKC), the most common ocular disease in ruminants worldwide, has affected semi-domesticated Eurasian reindeer (<i>Rangifer tarandus tarandus</i>) for over 100 years, both as individual cases and in outbreaks affecting tens to hundreds of animals. Recurrent IKC outbreaks have been affecting a semi-domesticated reindeer herd in Östra Kikkejaure (Norrbotten county, ...
    • Chlorhexidine compounds in cosmetic products Risk assessment of antimicrobial and antibiotic resistance development in microorganisms 

      Lunestad, Bjørn Tore; Møretrø, Trond; Hegstad, Kristin; Langsrud, Solveig; Scheie, Anne Aamdal; Kapperud, Georg; Lassen, Jørgen Fr; Nygård, Karin Maria; Robertson, Lucy; Nesbakken, Truls; Olsvik, Ørjan; Tranulis, Michael A.; Tryland, Morten; Rimstad, Espen (Research report; Forskningsrapport, 2010-04-15)
      Chlorhexidine and its salts are reported as being used in cosmetics as an active ingredient to give the desired effect or as a preservative in concentrations of up to 0.3 %. Such products include mouthwashes, hair dying and bleaching formulations, shampoos, anti hair “aging” products and exfoliants, body lotions, eye creams, face cleansers, sun cream, after-sun lotions, ...
    • CRISPR/Cas9—Advancing Orthopoxvirus Genome Editing for Vaccine and Vector Development 

      Okoli, Arinze Stanley; Okeke, malachy ifeanyi; Tryland, Morten; Moens, Ugo (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-22)
      : The clustered regularly interspaced short palindromic repeat (CRISPR)/associated protein 9 (Cas9) technology is revolutionizing genome editing approaches. Its high efficiency, specificity, versatility, flexibility, simplicity and low cost have made the CRISPR/Cas9 system preferable to other guided site-specific nuclease-based systems such as TALENs (Transcription Activator-like Effector ...
    • CWD in Norway 

      Tranulis, Michael A.; Tryland, Morten; Kapperud, Georg; Skjerve, Eystein; Gudding, Roar; Grahek-Ogden, Danica; Eckner, Karl Fredrich; Lassen, Jørgen Fr; Narvhus, Judith; Nesbakken, Truls; Robertson, Lucy; Rosnes, Jan Thomas; Vold, Line; Yazdankhah, Siamak Pour; Wasteson, Yngvild; Skjerdal, Olaug Taran (Research report; Forskningsrapport, 2016-06-30)
      The Norwegian Food Safety Authority (NFSA) and Norwegian Environmental Authority (NEA) asked the Norwegian Scientific Committee for Food Safety (Vitenskapskomiteen for mattrygghet, VKM) for an opinion on factors associated with the introduction of Chronic Wasting Disease (CWD) to Norway. VKM appointed a working group consisting of two members of the Panel on Biological Hazards, one member of Panel ...
    • Dekontaminering av pattedyrslakt ved bruk av damp eller varmt vann. Uttalelse fra Faggruppe for hygiene og smittestoffer i Vitenskapskomiteen for mattrygghet 

      Nesbakken, Truls; Christensen, Hardy; Skjerve, Eystein; Nygård, Karin Maria; Yazdankhah, Siamak Pour; Lunestad, Bjørn Tore; Kapperud, Georg; Lassen, Jørgen Fr; Robertson, Lucy; Olsvik, Ørjan; Tranulis, Michael A.; Tryland, Morten; Rimstad, Espen (Research report; Forskningsrapport, 2010-04-15)
      Mattilsynet har gitt VKM i oppgave å foreta en risikovurdering når det gjelder ”dekontaminering av pattedyrslakt ved bruk av varmt vann eller damp”. Da det er en bestemtdekontamineringsteknologi Mattilsynet ønsker utredet, velger faggruppen å bruke den mer presise betegnelsen ”overflatepasteurisering av slakt” som er i tråd med uttrykk og definisjoner som forskere innenfor dette området har benyttet ...
    • Evaluation of three commercial bovine ELISA kits for detection of antibodies against Alphaherpesviruses in reindeer (Rangifer tarandus tarandus) 

      Das Neves, Carlos G.; Yoccoz, Nigel G.; Roger, Matthieu; Rimstad, Espen; Tryland, Morten (Journal article; Tidsskriftartikkel; Peer reviewed, 2009-03-09)
      Background: The genus <i>Varicellovirus</i> (family <i>Herpesviridae</i> subfamily <i>Alphaherpesvirinae</i>) includes a group of viruses genetically and antigenically related to bovine herpesvirus 1 (BoHV-1) among which cervid herpesvirus 2 (CvHV-2) can be of importance in reindeer. These viruses are known to be responsible for different diseases in both wild and domestic animals. Reindeer are ...
    • Gammaherpesvirus in Cervid Species from Norway: Characterization of a New Virus in Wild and Semi-Domesticated Eurasian Tundra Reindeer (Rangifer tarandus tarandus) 

      Das Neves, Carlos G; Sacristan, Carlos; Madslien, Knut Ivar Engesæter; Tryland, Morten (Journal article; Tidsskriftartikkel; Peer reviewed, 2020)
      Gammaherpesvirus infections have been described in cervids worldwide, mainly the genera <i>Macavirus</i> or <i>Rhadinovirus</i>. However, little is known about the gammaherpesviruses species infecting cervids in Norway and Fennoscandia. Blood samples from semi-domesticated (<i>n</i> = 39) and wild (<i>n</i> = 35) Eurasian tundra reindeer (<i>Rangifer tarandus tarandus</i>), moose (<i>Alces alces</i>, ...
    • Hazard Characterization of Modified Vaccinia Virus Ankara Vector: What Are the Knowledge Gaps? 

      Okeke, Malachy Ifeanyi; Okoli, Arinze Stanley; Diaz Canova, Diana Karina; Oludotun, Taiwo G.; Tryland, Morten; Bøhn, Thomas; Moens, Ugo (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-29)
      Modified vaccinia virus Ankara (MVA) is the vector of choice for human and veterinary applications due to its strong safety profile and immunogenicity in vivo. The use of MVA and MVA-vectored vaccines against human and animal diseases must comply with regulatory requirements as they pertain to environmental risk assessment, particularly the characterization of potential adverse effects to humans, ...
    • Health and diseases of semi-domesticated reindeer in a climate change perspective 

      Tryland, Morten; Åhman, Birgitta; Sanchez Romano, Javier (Chapter; Bokkapittel, 2022-04-21)
      Climate change may affect reindeer herding and the health and disease of reindeer in several ways. One way of mitigating such changes is supplementary feeding, both in corrals and by bringing fodder to the animals on natural pastures. Feeding, when the right feed and feeding regime are used, may compensate for the loss of natural pastures and increase animal welfare. However, feeding may also cause ...
    • Health and diseases of semi-domesticated reindeer in a climate change perspective 

      Tryland, Morten; Åhman, Birgitta; Sanchez Romano, Javier (Chapter; Bokkapittel, 2022-04-21)
      Climate change may affect reindeer herding and the health and disease of reindeer in several ways. One way of mitigating such changes is supplementary feeding, both in corrals and by bringing fodder to the animals on natural pastures. Feeding, when the right feed and feeding regime are used, may compensate for the loss of natural pastures and increase animal welfare. However, feeding may also cause ...
    • Herding conditions related to infectious keratoconjunctivitis in semi-domesticated reindeer: a questionnaire-based survey among reindeer herders 

      Tryland, Morten; Stubsjøen, Solveig Marie; Ågren, Erik Olof; Johansen, Bernt; Kielland, Camilla (Journal article; Peer reviewed; Tidsskriftartikkel, 2016-04-12)
      Background: Infectious keratoconjunctivitis (IKC) in Eurasian semi-domesticated reindeer (Rangifer tarandus tarandus) is a multifactorial disease, associated to infectious agents such as Cervid herpesvirus 2 (CvHV2) and various species of bacteria, but environmental factors may also be necessary to initiate the disease. Little effort seems to have been invested in addressing the herder`s experience ...