Browsing Institutt for helse og samfunn by Author "Lund-Johansen, Fridtjof"

Now showing items 1-5 of 5

  • Covid-19 transmission in fitness centers in Norway - a randomized trial 
    Helsingen, Lise M.; Løberg, Magnus; Refsum, Erle; Gjøstein, Dagrun K.; Wieszczy, Paulina; Olsvik, Ørjan; Juul, Frederik E.; Barua, Ishita; Jodal, Henriette C.; Herfindal, Magnhild; Mori, Yuichi; Jore, Solveig; Lund-Johansen, Fridtjof; Fretheim, Atle; Bretthauer, Michael; Kalager, Mette (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Background Closed fitness centers during the Covid-19 pandemic may negatively impact health and wellbeing. We assessed whether training at fitness centers increases the risk of SARS-CoV-2 virus infection. ...
  • Humoral Response After 6 or More Successive Doses of SARS-CoV-2 mRNA Vaccines in Kidney Transplant Recipients-Should We Keep Vaccinating? 
    Åsberg, Anders; Hovd, Markus Herberg; Kjellevold, Stig Arne; Stenehjem, Aud Eldrid; Wien, Tale Norbye; Broch, Lars Ulrik; Reier-Nielsen, Morten; Hatlestad Qvale, Tor; Marti, Hans-Peter; Heldal, Kristian; Bitter, Jan; Hagelsteen Kvien, Elisabeth; Vaage, John T.; Lund-Johansen, Fridtjof; Midtvedt, Karsten (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
  • Humoral vaccine response and breakthrough infections in kidney transplant recipients during the COVID-19 pandemic: a nationwide cohort study 
    Hovd, Markus Herberg; Åsberg, Anders; Munthe, Ludvig Andre; Heldal, Kristian; Reisæter, Anna Varberg; Vaage, John T.; Lund-Johansen, Fridtjof; Midtvedt, Karsten (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Background Kidney transplant recipients (KTRs) experienced reduced SARS-CoV-2 vaccine response and were at increased risk of severe COVID-19. It is unknown if level of vaccine induced anti-receptor binding domain IgG ...
  • Prevention of covid-19 and other acute respiratory infections with cod liver oil supplementation, a low dose vitamin D supplement: quadruple blinded, randomised placebo controlled trial 
    Brunvoll, Sonja Hjellegjerde; Nygaard, Anders Benteson; Ellingjord-Dale, Merete; Holland, Petter; Istre, Mette Stausland; Kalleberg, Karl Trygve; Søraas, Camilla Lund; Holven, Kirsten Bjørklund; Ulven, Stine Marie; Hjartåker, Anette; Haider, Trond; Lund-Johansen, Fridtjof; Dahl, John Arne; Meyer, Haakon Eduard; Søraas, Arne Vasli (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Objective To determine if daily supplementation with cod liver oil, a low dose vitamin D supplement, in winter, prevents SARS-CoV-2 infection, serious covid-19, or other acute respiratory infections in adults in Norway. ...
  • Seroprevalence of antibodies against SARS-CoV-2 in the adult population during the pre-vaccination period, Norway, winter 2020/21 
    Anda, Erik Eik; Braaten, Tonje Bjørndal; Borch, Kristin Benjaminsen; Nøst, Therese Haugdahl; Chen, Sairah Lai Fa; Lukic, Marko; Lund, Eiliv; Forland, Frode; Leon, David Andrew; Askeland Winje, Brita; Kran, Anne-Marte Bakken; Kalager, Mette; Lund-Johansen, Fridtjof; Sandanger, Torkjel M (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Background Since March 2020, 440 million people worldwide have been diagnosed with COVID-19, but the true number of infections with SARS-CoV-2 is higher. SARS-CoV-2 antibody seroprevalence can add crucial ...