• 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 ...
    • 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, ...
    • 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 ...
    • Infection of liver sinusoidal endothelial cells with Muromegalovirus muridbeta1 involves binding to neuropilin-1 and is dynamin-dependent 

      Karlstrøm, Ingelin Kyrrestad; Larsen, Anett Kristin; Sanchez Romano, Javier; Simon, Jaione Santamaria; Li, Ruomei; Sørensen, Karen Kristine (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-09)
      Liver sinusoidal endothelial cells (LSEC) are scavenger cells with a remarkably high capacity for clearance of several blood-borne macromolecules and nanoparticles, including some viruses. Endocytosis in LSEC is mainly via the clathrin-coated pit mediated route, which is dynamin-dependent. LSEC can also be a site of infection and latency of betaherpesvirus, but mode of virus entry into these ...
    • Infectious Disease Outbreak Associated with Supplementary Feeding of Semi-Domesticated Reindeer 

      Tryland, Morten; Nymo, Ingebjørg Helena; Sanchez Romano, Javier; Mørk, Torill; Klein, Joern; Rockström, Ulrika (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-18)
      Supplementary winter feeding of semi-domesticated reindeer (<i>Rangifer tarandus tarandus</i>) has become more common in Sweden and Norway due to reindeer pasture fragmentation and climatic conditions. With increased corralling and feeding, often associated with animal stress, increased animal-to-animal contact, and poor hygienic conditions, an altered range of health challenges and diseases may ...
    • Infectious keratoconjunctivitis in semi-domesticated Eurasian tundra reindeer (Rangifer tarandus tarandus): Microbiological study of clinically affected and unaffected animals with special reference to cervid herpesvirus 2 

      Sanchez Romano, Javier; Mørk, Torill; Laaksonen, Sauli; Ågren, Erik; Nymo, Ingebjørg Helena; Sunde, Marianne; Tryland, Morten (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-16)
      Background<br> Infectious keratoconjunctivitis (IKC) is one of the most common ocular diseases in ruminants worldwide. In addition to keratitis and conjunctivitis, animals with IKC can develop uveitis, corneal ulcer, and in severe cases, blindness. The bacteria Moraxella spp. has been described as the primary causative agent of infectious bovine keratoconjunctivitis (IBK) in cattle (Bos taurus), ...
    • A Multi-Pathogen Screening of Captive Reindeer (Rangifer tarandus) in Germany Based on Serological and Molecular Assays 

      Sanchez Romano, Javier; Grund, Lisa; Obiegala, Anna; Nymo, Ingebjørg Helena; Ancin-Murguzur, Francisco Javier; Li, Hong; Król, Nina; Pfeffer, Martin; Tryland, Morten (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-20)
      Captive reindeer in German zoos and wildlife parks live outside their natural geographic range and are exposed to a variety of viral, bacterial and protozoan pathogens, some host-specific and some which they are not exposed to in their native habitat. Reindeer blood samples and ticks collected in 2013 from 123 reindeer at 16 different zoological facilities were available from a previous study. The ...
    • Ocular Histopathological Findings in Semi-Domesticated Eurasian Tundra Reindeer (Rangifer tarandus tarandus) with Infectious Keratoconjunctivitis after Experimental Inoculation with Cervid Herpesvirus 2 

      Sanchez Romano, Javier; Sørensen, Karen Kristine; Larsen, Anett Kristin; Mørk, Torill; Tryland, Morten (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-09)
      Infectious keratoconjunctivitis (IKC) is a common transmissible ocular disease in semi-domesticated Eurasian tundra reindeer (<i>Rangifer tarandus tarandus</i>). In large outbreaks, IKC may affect tens of animals in a herd, with the most severe cases often requiring euthanasia due to the destruction of the affected eyes and permanent blindness. An experimental inoculation with cervid herpesvirus 2 ...
    • Pharmacokinetics of a long-acting subcutaneous eprinomectin injection in semi-domesticated reindeer (Rangifer tarandus tarandus) - a pilot study 

      Davidson, Rebecca K.; Fæste, Christiane Kruse; Uhlig, Silvio; Tukun, Feng-Ling; Lian, Hans Edvin; Solvang, Hans Arne; Thorvaldsen, Renate; Folkow, Lars; Sanchez Romano, Javier; Kilvær, Marianne V.; Holmgren, Karin Elisabeth; Nymo, Ingebjørg Helena (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-17)
      Reindeer (Rangifer tarandus tarandus) are exposed to the pathogenic parasitic nematode Elaphostrongylus rangiferi during grazing. The severity of disease is dose-dependent. Prophylactic anthelmintic treatment is needed to improve animal health and reindeer herding sustainability. Herds are traditionally only gathered once during the summer, requiring a drug with a persistent effect. In this study ...
    • A Screening for Virus Infections among Wild Eurasian Tundra Reindeer (Rangifer tarandus tarandus) in Iceland, 2017–2019 

      Tryland, Morten; Sanchez Romano, Javier; Nymo, Ingebjørg Helena; Mørk, Torill; Þórarinsdóttir, Rán; Breines, Eva Marie; Li, Hong; Cunha, Cristina Wetzel; Thórisson, Skarphéðinn G. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-01-23)
      A winter population of around 4000–5000 wild Eurasian tundra reindeer (<i>Rangifer t. tarandus</i>) in the eastern part of Iceland represents descendants from 35 semi-domesticated reindeer imported to Iceland from Finnmark county, Norway, in 1787. While previous studies have indicated that they host fewer parasite species as compared to reindeer in Fennoscandia, little information exists on their ...
    • A Screening for Virus Infections in Eight Herds of Semi-domesticated Eurasian Tundra Reindeer (Rangifer tarandus tarandus) in Norway, 2013–2018 

      Tryland, Morten; Sanchez Romano, Javier; Nymo, Ingebjørg Helena; Breines, Eva Marie; Murguzur, Francisco Javier Ancin; Kjenstad, Ole Christian; Li, Hong; Cunha, Cristina W. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-12)
      Background: Previous serological screenings have indicated that Eurasian semi-domesticated tundra reindeer (Rangifer tarandus tarandus) in Finnmark, Northern Norway, are exposed to alphaherpesvirus, gammaherpesvirus and pestivirus. Alphaherpesvirus (i.e., Cervid herpesvirus 2; CvHV2) has been identified as the transmissible component of infectious keratoconjunctivitis (IKC). Limited knowledge exists ...
    • Screening of Eurasian Tundra Reindeer for Viral Sequences by Next-Generation Sequencing 

      Sanchez Romano, Javier; Omazic, Anna; Leijon, Mikael; Hagström, Åsa; Tryland, Morten; Kantanen, Juha; Reilas, Tiina; Rockström, Ulrika; Fedorov, Valery; Albihn, Ann (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-18)
      Reindeer husbandry is essential for the livelihood and culture of indigenous people in the Arctic. Parts of the herding areas are also used as pastures for farm animals, facilitating potential transmission of viruses between species. Following the Covid-19 pandemic, viruses circulating in the wild are receiving increased attention, since they might pose a potential threat to human health. Climate ...
    • Serological evidence of hepatitis e virus infection in semi-domesticated eurasian tundra reindeer (Rangifer tarandus tarandus) in norway 

      Rinaldo, Christine Hanssen; Nymo, Ingebjørg Helena; Sanchez Romano, Javier; Breines, Eva Marie; Murguzur, Francisco Javier Ancin; Tryland, Morten (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-25)
      Hepatitis E virus (HEV) is a common cause of viral hepatitis in humans. In developing countries, HEV-infections seem to be mainly associated with pigs, but other animal species may be involved in viral transmission. Recently, anti-HEV antibodies were detected in Norwegian wild reindeer. Here, we investigated anti-HEV seroprevalence in Norwegian semi-domesticated reindeer, animals in closer contact ...
    • Seroprevalence of pestivirus in Eurasian tundra reindeer in Finland, Sweden, Norway, Iceland and Russian Federation 

      Omazic, Anna; Aurosell, Caroline; Fedorov, Valery; Hagström, Åsa; Kantanen, Juha; Leijon, Mikael; Mørk, Torill; Nordtun, Christine S.; Nymo, Ingebjørg Helena; Þórisson, Skarphéðinn G.; Reilas, Tiina; Rockström, Urlika; Sanchez Romano, Javier; Thorarinsdóttir, Rán; Wensman, Jonas Johansson; Albihn, Ann (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-29)
      Reindeer herding is of great importance for the indigenous people of the Fennoscandia peninsula and northern Russia. There are also free-ranging feral populations of reindeer in Finland, Iceland, Norway and Russian Federation. The genus Pestivirus contains several viral species that infect ungulates and often show capacity to transmit between different host species. Sera from 520 Eurasian tundra ...