Blar i forfatter "Kahlmeter, Gunnar"
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Antimicrobial susceptibility testing of Bacteroides species by disk diffusion: The NordicAST Bacteroides study
Stubhaug, Tore Taksdal; Giske, Christian G.; Justesen, Ulrik S; Kahlmeter, Gunnar; Matuschek, Erika; Sundsfjord, Arnfinn; Skaare, Dagfinn (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-28)Objectives - Antimicrobial susceptibility testing (AST) of anaerobic bacteria has until recently been done by MIC methods. We have carried out a multi-centre evaluation of the newly validated EUCAST disk diffusion method for AST of Bacteroides spp.<p> <p>Methods - A panel of 30 Bacteroides strains was assembled based on reference agar dilution MICs, resistance gene detection and quantification ... -
Emergence of clonally related multidrug resistant haemophilus influenzae with penicillin-binding protein 3-mediated resistance to extended-spectrum cephalosporins, Norway, 2006 to 2013
Skaare, Dagfinn; Anthonisen, Inger Lill; Kahlmeter, Gunnar; Matuschek, Erika; Natås, Olav Bjarte; Steinbakk, Martin; Sundsfjord, Arnfinn; Kristiansen, Bjørn-Erik (Journal article; Tidsskriftartikkel; Peer reviewed, 2014) -
Performance of the EUCAST disc diffusion method and two MIC methods in detection of Enterobacteriaceae with reduced susceptibility to meropenem: the NordicAST CPE study.
Haldorsen, Bjørg; Giske, Christian G; Hansen, Dennis S; Helgason, Kristjan Orri; Kahlmeter, Gunnar; Löhr, Iren Høyland; Matuschek, Erika; Österblad, Monica; Rantakokko-Jalava, Kaisu; Wang, Mikala; Småbrekke, Lars; Samuelsen, Ørjan; Sundsfjord, Arnfinn (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-24)Objectives: To examine performance of EUCAST disc diffusion and supplementary MIC methods for detection of Enterobacteriaceae with reduced susceptibility to meropenem using EUCAST screening recommendations.<p> <p>Methods: Sixty-one Nordic laboratories delivered data on EUCAST disc diffusion (n " 61), semi-automated meropenem MIC (n " 23; VITEK2, n " 20 and Phoenix, n " 3) and gradient meropenem ... -
Performance of the EUCAST disk diffusion method, the CLSI agar screen method, and the Vitek 2 automated antimicrobial susceptibility testing system for detection of clinical isolates of enterococci with low- and medium-level VanB-type vancomycin resistance: A multicenter study
Hegstad, Kristin; Giske, Christian G.; Haldorsen, Bjørg; Matuschek, Erika; Schønning, Kristian; Leegaard, Truls Michael; Kahlmeter, Gunnar; Sundsfjord, Arnfinn (Journal article; Tidsskriftartikkel; Peer reviewed, 2014) -
The proposed Drug Resistance Index (DRI) is not a good measure of antibiotic effectiveness in relation to drug resistance
Vandenbroucke-Grauls, Christina MJE; Kahlmeter, Gunnar; Kluytmans, Jan; Kluytmans-Van Den Bergh, Marjolein; Monnet, Dominique L; Simonsen, Gunnar Skov; Skov, Robert L; Wolff Sonksen, Ute; Voss, Andreas (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-08-21)Summary box<p> <ul> <li>The Drug Resistance Index (DRI) is proposed as measure of antibiotic effectiveness in a given country, by combining, in a single metric the use of various antibiotic groups and the resistance proportions of several pathogens.</li> <li>The DRI is a complicated measure that gives results that cannot be understood by common knowledge and logic.</li> <li>The DRI conveys ... -
Staphylococcus aureus bloodstream infections: Diverging trends of meticillin-resistant and meticillin-susceptible isolates, EU/EEA, 2005 to 2018
Gagliotti, Carlo; Högberg, Liselotte Diaz; Billström, Hanna; Eckmanns, Tim; Giske, Christian G.; Heuer, Ole E.; Jarlier, Vincent; Kahlmeter, Gunnar; Wong, Danilo Lo Fo; Monen, Jos; Murchan, Stephen; Simonsen, Gunnar Skov; Šubelj, Maja; Andrašević, Arjana Tambić; Żabicka, Dorota; Žemličková, Helena; Monnet, Dominique L. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-18)Background: Invasive infections caused by Staphylococcus aureus have high clinical and epidemiological relevance. It is therefore important to monitor the S. aureus trends using suitable methods. Aim: The study aimed to describe the trends of bloodstream infections (BSI) caused by meticillin-resistant S. aureus (MRSA) and meticillin-susceptible S. aureus (MSSA) in the European Union (EU) and the ... -
Strong correlation between the rates of intrinsically antibiotic-resistant species and the rates of acquired resistance in Gram-negative species causing bacteraemia, EU/EEA, 2016
Jarlier, Vincent; Högberg, Liselotte Diaz; Heuer, Ole E.; Campos, Josó; Eckmanns, Tim; Giske, Christian G.; Grundmann, Hajo; Johnson, Alan P.; Kahlmeter, Gunnar; Monen, Jos; Pantosti, Annalisa; Rossolini, Gian Maria; van de Sande-Bruinsma, Nienke; Vatopoulos, Alkiviadis; Żabicka, Dorota; Žemličková, Helena; Monnet, Dominique L.; Simonsen, Gunnar Skov (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-08-15)<i>Background</i> - Antibiotic resistance, either intrinsic or acquired, is a major obstacle for treating bacterial infections.<p><p> <i>Aim</i> - Our objective was to compare the country-specific species distribution of the four Gram-negative species <i>Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa</i> and <i>Acinetobacter</i> species and the proportions of selected acquired ... -
Within-population distribution of trimethoprim resistance in Escherichia coli before and after a community-wide intervention on trimethoprim use
Sundqvist, Martin; Granholm, Susanne; Naseer, Mohammed Umaer; Rydén, Patrik; Brolund, Alma; Sundsfjord, Arnfinn; Kahlmeter, Gunnar; Johansson, Anders (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)