• The burden of hospital-attended influenza in Norwegian children 

      Bøås, Håkon; Bekkevold, Terese; Havdal, Lise Beier; Kran, Anne-Marte Bakken; Rojahn, Astrid; Størdal, Ketil; Debes, Sara; Døllner, Henrik; Nordbø, Svein Arne; Barstad, Bjørn; Haarr, Elisebet; Vazquez Fernandez, Liliana; Nakstad, Britt; Leegaard, Truls Michael; Hungnes, Olav; Flem, Elmira (Journal article; Peer reviewed, 2022)
    • The burden of respiratory syncytial virus in children under 5 years of age in Norway 

      Havdal, Lise Beier; Bøås, Håkon; Bekkevold, Terese; Kran, Anne-Marte Bakken; Rojahn, Astrid; Størdal, Ketil; Debes, Sara Molvig; Døllner, Henrik; Nordbø, Svein Arne; Barstad, Bjørn; Haarr, Elisebet; Vazquez Fernandez, Liliana; Nakstad, Britt; Inchley, Christopher; Flem, Elmira (Peer reviewed; Journal article, 2021)
      Abstract Objectives To estimate age-specific incidence of medically attended respiratory syncytial virus (RSV) infections in hospitalised Norwegian children and describe disease epidemiology. Methods Active prospective ...
    • Chronic fatigue syndromes: real illnesses that people can recover from 

      Alme, Tomas Nordheim; Andreasson, Anna; Asprusten, Tarjei Tørre; Bakken, Anne Karen; Beadsworth, Michael BJ; Boye, Birgitte; Brodal, Per; Brodwall, Elias Myrstad; Brurberg, Kjetil Gundro; Bugge, Ingrid; Chalder, Trudie; Due, Reidar; Eriksen, Hege Randi; Fink, Per Klausen; Flottorp, Signe Agnes; Fors, Egil Andreas; Jensen, Bård Fossli; Fundingsrud, Hans Petter; Garner, Paul; Havdal, Lise Beier; Helgeland, Helene; Jacobsen, Henrik Børsting; Johnson, Georg Espolin; Jonsjö, Martin; Knoop, Hans; Landmark, Live; Launes, Gunvor; Lekander, Mats; Linnros, Hannah; Lindsäter, Elin; Liira, Helena; Linnestad, Lina; Loge, Jon; Lyby, Peter Solvoll; Malik, Sadaf; Malt, Ulrik Fredrik; Moe, Trygve; Norlin, Anna-Karin; Pedersen, Maria; Pignatiello, Siv Elin; Rask, Charlotte Ulrikka; Reme, Silje Endresen; Roksund, Gisle; Sainio, Markku; Sharpe, Michael; Thorkildsen, Ruth Foseide; Van Roy, Betty; Vandvik, Per Olav; Vogt, Henrik; Wyller, Hedda Bratholm; Wyller, Vegard Bruun Bratholm (Peer reviewed; Journal article, 2023)
      The ‘Oslo Chronic Fatigue Consortium’ consists of researchers and clinicians who question the current narrative that chronic fatigue syndromes, including post-covid conditions, are incurable diseases. Instead, we propose ...
    • Inflammatory markers and pulmonary function in adolescents and young adults 6 months after mild COVID-19 

      Sommen, Silke Lauren; Havdal, Lise Beier; Selvakumar, Joel Pradeepkumar; Einvik, Gunnar; Leegaard, Truls Michael; Lund-Johansen, Fridtjof; Michelsen, Annika Elisabet; Mollnes, Tom Eirik; Stiansen-Sonerud, Tonje; Tjade, Trygve Olav; Wyller, Vegard Bruun Bratholm; Lund-Berven, Lise (Peer reviewed; Journal article, 2022)
      Introduction: Both public and scientific attention have shifted from the acute COVID-19 illness to the chronic disability experienced by a proportion of COVID-19 convalescents. Post COVID-19 condition, a term used for ...
    • Inflammatory Markers, Pulmonary Function, and Clinical Symptoms in Acute COVID-19 Among Non-Hospitalized Adolescents and Young Adults 

      Berven, Lise; Selvakumar, Joel Pradeepkumar; Havdal, Lise Beier; Stiansen-Sonerud, Tonje; Einvik, Gunnar; Leegaard, Truls Michael; Tjade, Trygve Olav; Michelsen, Annika Elisabet; Mollnes, Tom Eirik; Wyller, Vegard Bruun Bratholm (Peer reviewed; Journal article, 2022)
      Summary: Mild, subacute COVID-19 in young people show inflammatory enhancement, but normal pulmonary function. Inflammatory markers are associated with age and male sex, whereas clinical symptoms are associated with age ...
    • No association between disease severity and respiratory syncytial virus subtypes RSV-A and RSV-B in hospitalized young children in Norway 

      Bøås, Håkon; Havdal, Lise Beier; Størdal, Ketil; Døllner, Henrik; Leegaard, Truls Michael; Bekkevold, Terese; Flem, Elmira; Inchley, Christopher; Nordbø, Svein Arne; Rojahn, Astrid Elisabeth; Debes, Sara Molvig; Barstad, Bjørn; Haarr, Elisebet; Kran, Anne-Marte Bakken (Peer reviewed; Journal article, 2024)
      Objective There is conflicting evidence whether subtypes of Respiratory syncytial virus have different seasonality or are differentially associated with clinical severity. We aimed to explore the associations between ...
    • Prevalence and Characteristics Associated With Post-COVID-19 Condition Among Nonhospitalized Adolescents and Young Adults 

      Selvakumar, Joel Pradeepkumar; Havdal, Lise Beier; Drevvatne, Martin Solstrand; Brodwall, Elias Myrstad; Lund-Berven, Lise; Stiansen-Sonerud, Tonje; Einvik, Gunnar; Leegaard, Truls Michael; Tjade, Trygve Olav; Michelsen, Annika Elisabet; Mollnes, Tom Eirik; Lund-Johansen, Fridtjof; Holmøy, Trygve; Zetterberg, Henrik; Blennow, Kaj; Sandler, Carolina X.; Cvejic, Erin; Lloyd, Andrew R.; Wyller, Vegard Bruun Bratholm (Peer reviewed; Journal article, 2023)
      Importance The prevalence and baseline risk factors of post–COVID-19 condition (PCC) remain unresolved among the large number of young people who experienced mild COVID-19. Objectives To determine the point prevalence ...
    • Risk factors associated with severe disease in respiratory syncytial virus infected children under 5 years of age 

      Havdal, Lise Beier; Bøås, Håkon; Bekkevold, Terese; Kran, Anne-Marte Bakken; Rojahn, Astrid; Størdal, Ketil; Debes, Sara; Døllner, Henrik; Nordbø, Svein Arne; Barstad, Bjørn; Haarr, Elisebet; Vazquez Fernandez, Liliana; Nakstad, Britt; Inchley, Christopher; Flem, Elmira (Peer reviewed; Journal article, 2022)
      Objective: To evaluate risk factors for severe disease in children under 59 months of age hospitalized with respiratory syncytial virus (RSV) infection. Study design: We prospectively enrolled 1,096 cases of laboratory ...