Blar i forfatter "Aasnæs, Bettina"

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    • Cluster of linezolid-resistant Enterococcus faecium ST117 in Norwegian hospitals 

      Hegstad, Kristin; Longva, Jørn-Åge; Hide, Reidar; Aasnæs, Bettina; Lunde, Tracy Tamara Munthali; Simonsen, Gunnar Skov (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-08-19)
      A linezolid-resistant, vancomycin-susceptible Enterococcus faecium strain was isolated from 3 patients who had not received linezolid. The first patient was hospitalized in the same hospitals and wards as the 2 following patients. The E. faecium isolates were resistant to linezolid (minimum inhibitory concentration 8–32 mg/l), ampicillin, and high levels of gentamicin. Resistance to linezolid was ...

    • Dissemination and Characteristics of a Novel Plasmid-Encoded Carbapenem-Hydrolyzing Class D β-Lactamase, OXA-436, Found in Isolates from Four Patients Involving Six Different Hospitals in Denmark. 

      Samuelsen, Ørjan; Hansen, Frank; Aasnæs, Bettina; Hasman, Henrik; Lund, Bjarte Aarmo; Leiros, Hanna-Kirsti S.; Lilje, Berit; Janice, Jessin; Jakobsen, Lotte; Littauer, Pia; Søes, Lillian M; Holzknecht, Barbara J.; Andersen, Leif P; Stegger, Marc; Andersen, Paal S.; Hammerum, Anette M. (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-23)
      The diversity of OXA-48-like carbapenemases are continually expanding. In this study, we describe the dissemination and characteristics of a novel class D carbapenemase (CHDL) named OXA-436. In total, six OXA-436-producing Enterobacteriaceae isolates including Enterobacter asburiae (n=3), Citrobacter freundii (n=2) and Klebsiella pneumoniae (n=1) were identified in four patients in the period between ...

    • Molecular and epidemiological characterization of carbapenemase-producing Enterobacteriaceae in Norway, 2007 to 2014 

      Samuelsen, Ørjan; Overballe-Petersen, Søren; Bjørnholt, Jørgen; Brisse, Sylvain; Doumith, Michel; Woodford, Neil; Hopkins, Katie L.; Aasnæs, Bettina; Haldorsen, Bjørg; Sundsfjord, Arnfinn (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-15)
      The prevalence of carbapenemase-producing Enterobacteriaceae (CPE) is increasing worldwide. Here we present associated patient data and molecular, epidemiological and phenotypic characteristics of all CPE isolates in Norway from 2007 to 2014 confirmed at the Norwegian National Advisory Unit on Detection of Antimicrobial Resistance. All confirmed CPE isolates were characterized pheno- and genotypically, ...