Blar i forfatter "Larssen, Kjersti Wik"

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    • Pleural Empyema Caused by Streptococcus intermedius and Fusobacterium nucleatum: A Distinct Entity of Pleural Infections 

      Dyrhovden, Ruben; Eagan, Tomas Mikal Lind; Fløtten, Øystein; Siljan, William Ward; Leegaard, Truls Michael; Bø, Bjørnar; Fardal, Hilde; Grøvan, Fredrik; Kildahl-Andersen, Arne; Larssen, Kjersti Wik; Tilseth, Rune; Hjetland, Reidar; Løes, Sigbjørn Suk; Lindemark, Frode; Tellevik, Marit Gjerde; Breistein, Rebecca Irene; Kommedal, Øyvind (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-22)
      Background - Many community-acquired pleural infections are caused by facultative and anaerobic bacteria from the human oral microbiota. The epidemiology, clinical characteristics, pathogenesis, and etiology of such infections are little studied. The aim of the present prospective multicenter cohort study was to provide a thorough microbiological and clinical characterization of such oral-type pleural ...

    • Silenced vanA gene cluster on a transferable plasmid cause outbreak of vancomycin variable enterococci 

      Sivertsen, Audun; Pedersen, Torunn Annie; Larssen, Kjersti Wik; Bergh, Kåre; Rønning, Torunn Gresdal; Radtke, Andreas; Hegstad, Kristin (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-05-02)
      We report an outbreak of vancomycin-variable vanA+ enterococci (VVE) able to escape phenotypic detection by current guide- lines and demonstrate the molecular mechanisms for in vivo switching into vancomycin resistance and horizontal spread of the vanA cluster. Forty-eight vanA+ Enterococcus faecium isolates and one Enterococcus faecalis isolate were analyzed for clonality with pulsed-field ...