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Gunnar Skov Simonsen

Professor
Institutt for medisinsk biologi




Forskningsinteresser

Antibiotikaresistens, klinisk mikrobiologi, folkehelse

Arbeider i CRIStin


  • Naseer, Umaer; Haldorsen, Bjørg; Haldorsen, Bjørg; Tofteland, Ståle; Hegstad, Kristin; Scheutz, Flemming; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn. Molecular characterization of CTX-M-15-producing clinical isolates of Escherichia coli reveals the spread of multidrug-resistant ST131 (O25:H4) and ST964 (O102:H6) strains in Norway. Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS) 2009; Volum 117 (7). ISSN 0903-4641.s 526 - 536.s doi: 10.1111/j.1600-0463.2009.02465.x.
  • Haldorsen, Bjørg C; Aasnaes, Bettina; Dahl, Kristin Hegstad; Hanssen, Anne-Merethe; Simonsen, Gunnar Skov; Walsh, Timothy R; Sundsfjord, arnfinn; Lundblad, Eirik W. The AmpC phenotype in Norwegian clinical isolates of Escherichia coli is associated with an acquired ISEcp1-like ampC element or hyperproduction of the endogenous AmpC. Journal of Antimicrobial Chemotherapy 2008; Volum 62. ISSN 0305-7453.s 694 - 702.s doi: 10.1093/jac/dkn257.
  • Tofteland, Ståle; Haldorsen, Bjørg; Dahl, Kristin Hegstad; Simonsen, Gunnar Skov; Steinbakk, Martin; Walsh, Timothy R; Sundsfjord, Arnfinn. Effects of phenotype and genotype on methods for detection of extended-spectrum-beta-lactamase-producing clinical isolates of Escherichia coli and Klebsiella pneumoniae in Norway. (fulltekst) Journal of Clinical Microbiology 2007; Volum 45 (1). ISSN 0095-1137.s 199 - 205.s doi: 10.1128/JCM.01319-06.
  • Sundsfjord, Arnfinn; Simonsen, Gunnar Skov; Haldorsen, Bjørg C; Haaheim, Håkon; Hjelmevoll, SO; Littauer, Pia; Dahl, Kristin Hegstad. Genetic methods for detection of antimicrobial resistance. Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS) 2004; Volum 112. ISSN 0903-4641.s 815 - 837.
  • Cassini, Alessandro; Högberg, Liselotte Diaz; Plachouras, Diamantis; Quattrocchi, Annalisa; Hoxha, Ana; Simonsen, Gunnar Skov; Colomb-Cotinat, Mélanie; Kretzschmar, Mirjam E.; Devleesschauwer, Brecht; Cecchini, Michele; Ouakrim, Driss Ait; Oliveira, Tiago Cravo; Struelens, Marc J.; Suetens, Carl; Monnet, Dominique L.. Attributable deaths and disability-adjusted life-years caused by infections with antibiotic-resistant bacteria in the EU and the European Economic Area in 2015: a population-level modelling analysis. Lancet. Infectious diseases (Print) 2019; Volum 19 (1). ISSN 1473-3099.s 56 - 66.s doi: 10.1016/S1473-3099(18)30605-4.

  • Sanabria-Moreno, Adriana Maria; Røkeberg, Merethe E.O.; Johannessen, Mona; Sollid, Johanna U Ericson; Simonsen, Gunnar Skov; Hanssen, Anne Merethe. Culturing periprosthetic tissue in BacT/Alert® Virtuo blood culture system leads to improved and faster detection of prosthetic joint infections. BMC Infectious Diseases 2019; Volum 19 (1). ISSN 1471-2334.s doi: 10.1186/s12879-019-4206-x.

  • Stensen, Dina Benedicte Berg; Furberg, Anne-Sofie; Småbrekke, Lars; Olsen, Karina; Simonsen, Gunnar Skov; Sollid, Johanna U Ericson; Nielsen, Christopher Sivert; Grimnes, Guri. Hormonal contraceptive use and Staphylococcus aureus nasal and throat carriage in a Norwegian youth population. (fulltekst) PLOS ONE 2019. ISSN 1932-6203.s doi: 10.1371/journal.pone.0218511.

  • Hays, John P.; Mitsakakis, Konstantinos; Luz, Saturnino; van Belkum, Alex; Becker, Karsten; van den Bruel, Ann; Harbarth, Stephan; Rex, John H.; Simonsen, Gunnar Skov; Werner, Guido; Di Gregori, Valentina; Lüdke, Gerd; van Staa, Tjeerd; Moran-Gilad, Jacob; Bachmann, Till T.. The successful uptake and sustainability of rapid infectious disease and antimicrobial resistance point-of-care testing requires a complex 'mix-and-match' implementation package. European Journal of Clinical Microbiology and Infectious Diseases 2019; Volum 38 (6). ISSN 0934-9723.s 1015 - 1022.s doi: 10.1007/s10096-019-03492-4.

  • Haugen, Pål; Simonsen, Gunnar Skov; Primicerio, Raul; Furberg, Anne-Sofie; Småbrekke, Lars. Antibiotics to outpatients in Norway—Assessing effect of latitude and municipality population size using quantile regression in a cross-sectional study.. Pharmaceutical statistics 2018; Volum 17 (1). ISSN 1539-1604.s 4 - 11.s doi: 10.1002/pst.1831.

  • Simoes, AS; Maia, MR; Gregorio, J; Couto, I; Asfeldt, anne mette; Simonsen, Gunnar Skov; Povoa, P; Viveiros, Miguel; Lapao, LV. Participatory implementation of an antibiotic stewardship programme supported by an innovative surveillance and clinical decision-support system. Journal of Hospital Infection 2018; Volum 100 (3). ISSN 0195-6701.s 257 - 264.s doi: 10.1016/j.jhin.2018.07.034.

  • Winje, Brita Askeland; White, Richard Aubrey; Syre, Heidi; Skutlaberg, Dag Harald; Oftung, Fredrik; Mengshoel, Anne Torunn; Blix, Hege Salvesen; Brantsæter, Arne Broch; Holter, Ellen; Handal, Nina; Simonsen, Gunnar Skov; Afset, Jan Egil; Kran, Anne-Marte Bakken. Stratification by interferon-γ release assay level predicts risk of incident TB. Thorax 2018; Volum 73 (7). ISSN 0040-6376.s 652 - 661.s doi: 10.1136/thoraxjnl-2017-211147.

  • Bollestad, Marianne; Grude, Nils; Solhaug, Sigrid; Raffelsberger, Niclas Peter; Handal, Nina; Nilsen, Hans-Johnny; Romstad, Monica Regine; Emmert, Andreas; Tveten, Yngvar; Søraas, Arne Vasli; Jenum, Pål; Jenum, Synne; Møller-Stray, Janne; Weme, Einar Tollaksen; Lindbæk, Morten; Simonsen, Gunnar Skov. Clinical and bacteriological efficacy of pivmecillinam treatment for uncomplicated urinary tract infections caused by ESBL-producing Escherichia coli: a prospective, multicentre, observational cohort study.. Journal of Antimicrobial Chemotherapy 2018; Volum 73 (9). ISSN 0305-7453.s 2503 - 2509.s doi: 10.1093/jac/dky230.

  • Chirindze, Lourenco Marcos; Zimba, Tomas F.; Sekyere, John Osei; Govinden, Usha; Chenia, Hafizah Y.; Sundsfjord, Arnfinn; Essack, Sabiha Y.; Simonsen, Gunnar Skov. Faecal colonization of E. coli and Klebsiella spp. producing extended-spectrum beta-lactamases and plasmid-mediated AmpC in Mozambican university students. BMC Infectious Diseases 2018; Volum 18 (244). ISSN 1471-2334.s doi: 10.1186/s12879-018-3154-1.

  • Berg, Einar Sverre; Wester, Astrid Lousie; Ahrenfeldt, J; Mo, Solveig Sølverød; Slettemeås, Jannice Schau; Steinbakk, Martin; Samuelsen, Ørjan; Grude, Nils; Simonsen, Gunnar Skov; Löhr, Iren Høyland; Jørgensen, Silje; Tofteland, Ståle; Lund, O.; Dahle, Ulf R; Sunde, Marianne. Norwegian patients and retail chicken meat share cephalosporin-resistant Escherichia coli and IncK/blaCMY-2 resistance plasmids. Clinical Microbiology and Infection 2017; Volum 23 (6). ISSN 1198-743X.s 407.e9 - 407.e15.s doi: 10.1016/j.cmi.2016.12.035.

  • Magiorakos, Anna Pelagia; Burns, Karen M.; Rodríguez Baño, Jesús; Borg, Michael; Daikos, George L.; Dumpis, Uga; Lucet, Jean Christophe; Moro, Maria Luisa; Tacconelli, Evelina; Simonsen, Gunnar Skov; Szilágyi, Emese; Voß, Andreas; Weber, J. Todd. Infection prevention and control measures and tools for the prevention of entry of carbapenem-resistant Enterobacteriaceae into healthcare settings: Guidance from the European Centre for Disease Prevention and Control. Antimicrobial Resistance and Infection Control 2017; Volum 6:113. ISSN 2047-2994.s 1 - 17.s doi: 10.1186/s13756-017-0259-z.

  • Esaiassen, Eirin; Hjerde, Erik; Cavanagh, Jorunn Pauline; Simonsen, Gunnar Skov; Klingenberg, Claus. Bifidobacterium bacteremia: Clinical characteristics and a genomic approach to assess pathogenicity. Journal of Clinical Microbiology 2017; Volum 55 (7). ISSN 0095-1137.s 2234 - 2248.s doi: 10.1128/JCM.00150-17.

  • Giske, Anneli; Nymo, Linn Såve; Fuskevåg, Ole-Martin; Amundsen, Siri; Simonsen, Gunnar Skov; Lassen, Kristoffer. Systemic antibiotic prophylaxis prior to gastrointestinal surgery – is oral administration of doxycycline and metronidazole adequate?. Infectious diseases 2017; Volum 49 (11-12). ISSN 2374-4243.s 785 - 791.s doi: 10.1080/23744235.2017.1342044.

  • Fjalstad, Jon Widding; Stensvold, Hans Jørgen; Bergseng, Håkon; Simonsen, Gunnar Skov; Salvesen, Bodil; Rønnestad, Arild Erlend; Klingenberg, Claus. Early-Onset Sepsis and Antibiotic Exposure in Term Infants: A Nationwide Population-Based Study in Norway. The Pediatric Infectious Disease Journal 2016; Volum 35 (1). ISSN 0891-3668.s 1 - 6.s doi: 10.1097/INF.0000000000000906.

  • Youngster, Ilan; Avorn, Jerry; Belleudi, Valeria; Cantarutti, Anna; Diez-Domingo, Javier; Kirchmayer, Ursula; Park, Byung-Joo; Peiro, Salvador; Sanfelix-Gimeno, Gabriel; Schröder, Helmut; Schüssel, Katrin; Shin, Ju-Young; Shin, Sun Mi; Simonsen, Gunnar Skov; Blix, Hege Salvesen; Tong, Angela; Trifirò, Gianluca; Ziv-Baran, Tomer; Kim, Seoyoung C. Antibiotic Use in Children – A Cross-National Analysis of 6 Countries. Journal of Pediatrics 2016; Volum 182. ISSN 0022-3476.s 239 - 244.e1.s doi: 10.1016/j.jpeds.2016.11.027.

  • Sunde, Marianne; Slettemeås, Jannice Schau; Böckerman, Inger; Norström, Madelaine; Simonsen, Gunnar Skov. Integron, plasmid and host strain characteristics of Escherichia coli from humans and Food included in the Norwegian antimicrobial resistance monitoring programmes. 2016 (16). ISSN 1502-2307.s 52 - .

  • Aanensen, David M.; Feil, Edward J.; Holden, Matthew T.G.; Dordel, Janina; Yeats, Corin A.; Fedosejev, Artemij; Goater, Richard; Castillo-Ramírez, Santiago; Corander, Jukka; Colijn, Caroline; Chlebowicz, Monika A.; Schouls, Leo; Heck, Max; Pluister, Gerlinde; Ruimy, Raymond; Kahlmeter, Gunnar; Åhman, Jenny; Matuschek, Erika; Friedrich, Alexander W.; Parkhill, Julian; Bentley, Stephen D; Spratt, Brian G.; Grundmann, Hajo; Marstein, Lillian; Jacobsen, Trond; Simonsen, Gunnar Skov. Whole-genome sequencing for routine pathogen surveillance in public health: A population snapshot of invasive Staphylococcus aureus in Europe. mBio 2016; Volum 7:e00444-16 (3). ISSN 2150-7511.s doi: 10.1128/mBio.00444-16.

  • Sunde, Marianne; Simonsen, Gunnar Skov; Slettemeås, Jannice Schau; Bøckerman, Inger; Norström, Madelaine. Integron, plasmid and host strain characteristics of Escherichia coli from humans and food included in the Norwegian antimicrobial resistance monitoring programs. PLoS ONE 2015; Volum 10:e0128797 (6). ISSN 1932-6203.s doi: 10.1371/journal.pone.0128797.

  • Pulcini, Celine; Wencker, Freya; Frimodt-Møller, Niels; Kern, Winfried Vinzenz; Nathwani, Dilip; Rodríguez-Baño, Jesús; Simonsen, Gunnar Skov; Vlahović-Palčevski, Vera V.; Gyssens, Inge C.. European survey on principles of prudent antibiotic prescribing teaching in undergraduate students. Clinical Microbiology and Infection 2015; Volum 21 (4). ISSN 1198-743X.s 354 - 361.s doi: 10.1016/j.cmi.2014.11.015.

  • Geilhufe, Marc; Held, Leonhard; Skrøvseth, Stein Olav; Simonsen, Gunnar Skov; Godtliebsen, Fred. Power law approximations of movement network data for modeling infectious disease spread. Biometrical Journal 2014; Volum 56 (3). ISSN 0323-3847.s 363 - 382.s doi: 10.1002/bimj.201200262.

  • Hegstad, Kristin; Longva, Jørn-Åge; Hide, Reidar; Aasnæs, Bettina; Lunde, Tracy Tamara Munthali; Simonsen, Gunnar Skov. Cluster of linezolid-resistant Enterococcus faecium ST117 in Norwegian hospitals. Scandinavian Journal of Infectious Diseases 2014; Volum 46 (10). ISSN 0036-5548.s 712 - 715.s doi: 10.3109/00365548.2014.923107.

  • Haldorsen, Bjørg; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn; Samuelsen, Ørjan. Increased prevalence of aminoglycoside resistance in clinical isolates of Escherichia coli and Klebsiella spp. in Norway is associated with the acquisition of AAC(3)-II and AAC(6')-Ib. Diagnostic microbiology and infectious disease 2014; Volum 78 (1). ISSN 0732-8893.s 66 - 69.s doi: 10.1016/j.diagmicrobio.2013.10.001.

  • Andersen, Cecilie Torp; Arnesen, Trude Margrete; Dominique, Caugant; Elstrøm, Petter; Larssen, Kjersti Wik; Simonsen, Gunnar Skov; Skaare, Dagfinn; Steinbakk, Martin; Syversen, Gaute; VESTRHEIM, DIDRIK FRIMANN; Width-Gran, Frode. HUMAN CLINICAL ISOLATES. 2014 (2013). ISSN 1502-2307.s 55 - .

  • Olsen, Karina; Sangvik, Maria; Simonsen, Gunnar Skov; Sollid, Johanna U Ericson; Sundsfjord, Arnfinn; Thune, Inger; Furberg, Anne-Sofie. Prevalence and population structure of Staphylococcus aureus nasal carriage in healthcare workers in a general population. The Tromsø Staph and Skin Study. Epidemiology and Infection 2013; Volum 141 (1). ISSN 0950-2688.s 143 - 152.s doi: 10.1017/S0950268812000465.

  • Nilsen, Einar; Haldorsen, Bjørg; Sundsfjord, Arnfinn; Simonsen, Gunnar Skov; Ingebretsen, André; Naseer, Mohammed Umaer; Samuelsen, Ørjan. Large IncHI2-plasmids encode extended-spectrum beta-lactamases (ESBLs) in Enterobacter spp. bloodstream isolates, and support ESBL-transfer to Escherichia coli. Clinical Microbiology and Infection 2013; Volum 19 (11). ISSN 1198-743X.s E516 - E518.s doi: 10.1111/1469-0691.12274.

  • Simonsen, Gunnar Skov; Steinbakk, Martin; Elstrøm, Petter; Larssen, Kjersti Wik; Gran, Frode Width; VESTRHEIM, DIDRIK FRIMANN; Radtke, Andreas; Rønning, Karin; Andersen, Cecilie Torp; Dudman, Susanne Gjeruldsen; Hungnes, Olav. Human Clinical Isolates. 2013 (13). ISSN 1502-2307.s 57 - 85.

  • Gravningen, Kirsten; Simonsen, Gunnar Skov; Furberg, Anne-Sofie; Wilsgaard, Tom. Factors associated with Chlamydia trachomatis testing in a high school based screening and previously in clinical practice: a cross-sectional study in Norway. BMC Infectious Diseases 2013; Volum 13. ISSN 1471-2334.s doi: 10.1186/1471-2334-13-361.

  • Olsen, Karina; Danielsen, Kjersti; Wilsgaard, Tom; Sangvik, Maria; Sollid, Johanna U. Ericson; Thune, Inger; Eggen, Anne Elise; Simonsen, Gunnar Skov; Furberg, Anne-Sofie. Obesity and Staphylococcus aureus Nasal Colonization among Women and Men in a General Population. PLoS ONE 2013; Volum 8 (5). ISSN 1932-6203.s doi: 10.1371/journal.pone.0063716.

  • Kuch, Alicja; Willems, Rob J.L.; Werner, Guido; Coque, Teresa M.; Hammerum, Anette M.; Sundsfjord, Arnfinn; Klare, Ingo; Ruiz-Garbajosa, Patricia; Simonsen, Gunnar Skov; van Luit-Asbroek, Miranda; Hryniewicz, Waleria; Sadowy, Eva. Insight into antimicrobial susceptibility and population structure of contemporary human Enterococcus faecalis isolates from Europe. Journal of Antimicrobial Chemotherapy 2012; Volum 67 (3). ISSN 0305-7453.s 551 - 558.s doi: 10.1093/jac/dkr544.

  • Rosvoll, Torill Cathrin Solvær; Langnes, Belinda; Lunde, Tracy Munthali; Hegstad, Kristin; AasnÆs, bettina; Hammerum, Anette M.; Lester, Camilla; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn; Pedersen, Torunn. Increased high-level gentamicin resistance in invasive Enterococcus faecium is associated with aac(6 ')Ie-aph(2 '')Ia-encoding transferable megaplasmids hosted by major hospital-adapted lineages. FEMS Immunology and Medical Microbiology 2012; Volum 66 (2). ISSN 0928-8244.s 166 - 176.s doi: 10.1111/j.1574-695X.2012.00997.x.

  • Gravningen, Kirsten Midttun; Furberg, Anne-Sofie; Simonsen, Gunnar Skov; Wilsgaard, Tom. Early sexual behaviour and Chlamydia trachomatis infection - a population based cross-sectional study on gender differences among adolescents in Norway. BMC Infectious Diseases 2012; Volum 22 (12). ISSN 1471-2334.s doi: 10.1186/1471-2334-12-319.

  • Gravningen, Kirsten Midttun; Christerson, Linus; Furberg, Anne-Sofie; Simonsen, Gunnar Skov; Ödman, Kristina; Ståhlsten, Anna; Herrmann, Björn. Multilocus Sequence Typing of Genital Chlamydia trachomatis in Norway Reveals Multiple New Sequence Types and a Large Genetic Diversity. PLoS ONE 2012; Volum 7 (3). ISSN 1932-6203.s doi: 10.1371/journal.pone.0034452.

  • Olsen, Karina; Falch, Birgit Margrethe; Danielsen, Kjersti; Johannessen, Mona; Sollid, Johanna U Ericson; Thune, Inger; Grimnes, Guri; Jorde, Rolf; Simonsen, Gunnar Skov; Furberg, Anne-Sofie. Staphylococcus aureus nasal carriage is associated with serum 25-hydroxyvitamin D levels, gender and smoking status. The Tromso Staph and Skin Study. European Journal of Clinical Microbiology and Infectious Diseases 2012; Volum 31 (4). ISSN 0934-9723.s 465 - 473.s doi: 10.1007/s10096-011-1331-x.

  • Johnsen, Pål jarle; Townsend, JP; Bøhn, Thomas; Simonsen, Gunnar Skov; Sundsfjord, arnfinn; Nielsen, Kaare Magne. Retrospective evidence for a biological cost of vancomycin resistance determinants in the absence of glycopeptide selective pressures. Journal of Antimicrobial Chemotherapy 2011; Volum 66 (3). ISSN 0305-7453.s 608 - 610.s doi: 10.1093/jac/dkq512.

  • Sangvik, Maria; Olsen, Renate Slind; Olsen, Karina; Simonsen, Gunnar Skov; Furberg, Anne-Sofie; Sollid, johanna u ericson. Age- and Gender-Associated Staphylococcus aureus spa Types Found among Nasal Carriers in a General Population: the Tromsø Staph and Skin Study. Journal of Clinical Microbiology 2011; Volum 49 (12). ISSN 0095-1137.s 4213 - 4218.s doi: 10.1128/JCM.05290-11.

  • Olsen, Karina; Falch, Birgit Margrethe; Danielsen, Kjersti; Johannessen, Mona; Sollid, Johanna U Ericson; Thune, Inger; Grimnes, Guri; Jorde, Rolf; Simonsen, Gunnar Skov; Furberg, Anne-Sofie. Staphylococcus aureus nasal carriage is associated with serum 25-hydroxyvitamin D levels, gender and smoking status. The Tromsø Staph and Skin Study. (sammendrag) European Journal of Clinical Microbiology and Infectious Diseases 2011; Volum 31 (4). ISSN 0934-9723.s 465 - 473.s doi: 10.1007/s10096-011-1331-x.

  • Nilsson, Lennart E; Frimodt-Møller, Niels; Vaara, Martti; Simonsen, Gunnar Skov. Comparative activity of tigecycline and tetracycline on Gram-negative and Gram-positive bacteria revealed by a multicentre study in four North European countries. Scandinavian Journal of Infectious Diseases 2011; Volum 43 (9). ISSN 0036-5548.s 707 - 713.s doi: 10.3109/00365548.2011.581305.

  • Karah, Nabil; Haldorsen, Bjørg; Hegstad, Kristin; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn; Samuelsen, Ørjan. Species identification and molecular characterization of Acinetobacter spp. blood culture isolates from Norway. Journal of Antimicrobial Chemotherapy 2011; Volum 66 (4). ISSN 0305-7453.s 738 - 744.s doi: 10.1093/jac/dkq521.

  • Rosvoll, Torill Cathrin Solvær; Pedersen, Torunn; Sletvold, Hege; Johnsen, Pål Jarle; Sollid, Johanna U Ericson; Simonsen, Gunnar Skov; Jensen, Lars B; Nielsen, Kaare Magne; Sundsfjord, Arnfinn. PCR-based plasmid typing in Enterococcus faecium strains reveals widely distributed pRE25-, pRUM-, pIP501-and pHT beta-related replicons associated with glycopeptide resistance and stabilizing toxin-antitoxin systems. FEMS Immunology and Medical Microbiology 2010; Volum 58 (2). ISSN 0928-8244.s 254 - 268.s doi: 10.1111/j.1574-695X.2009.00633.x.

  • Sletvold, H; Johnsen, PJ; Wikmark, Odd-Gunnar; Simonsen, Gunnar Skov; Sundsfjord, A; Nielsen, KM. Tn1546 is part of a larger plasmid-encoded genetic unit horizontally disseminated among clonal Enterococcus faecium lineages. Journal of Antimicrobial Chemotherapy 2010; Volum 65 (9). ISSN 0305-7453.s 1894 - 1906.s doi: 10.1093/jac/dkq219.

  • Naseer, Mohammed Umaer; Haldorsen, Bjørg Christina; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn. Sporadic occurrence of CMY-2-producing multidrug-resistant Escherichia coli of ST-complexes 38 and 448, and ST131 in Norway. Clinical Microbiology and Infection 2010; Volum 16 (2). ISSN 1198-743X.s 171 - 178.s doi: 10.1111/j.1469-0691.2009.02861.x.

  • Lier, Tore; Simonsen, Gunnar Skov; Wang, Tianping; Lu, Dabing; Haukland, hanne; Vennervald, Birgitte J.; Hegstad, Joachim; Johansen, Maria V.. Real-Time Polymerase Chain Reaction for Detection of Low-Intensity Schistosoma japonicum Infections in China. American Journal of Tropical Medicine and Hygiene 2009; Volum 81 (3). ISSN 0002-9637.s 428 - 432.

  • Johnsen, Pål jarle; Townsend, Jeffrey P.; Bøhn, Thomas; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn; Sundsfjord, arnfinn; Nielsen, Kaare Magne. Factors affecting the reversal of antimicrobial-drug resistance. Lancet. Infectious diseases (Print) 2009; Volum 9 (6). ISSN 1473-3099.s 357 - 364.

  • Simonsen, Gunnar Skov. Overvåking og forekomst av antibiotikaresistens i Norge. Tidsskrift for Den norske legeforening 2009; Volum 129 (7). ISSN 0029-2001.s 623 - 627.

  • Klingenberg, Claus; SmÅbrekke, lars; Døllner, Henrik; Simonsen, Gunnar Skov. Peroral antibiotikabehandling av urinveisinfeksjon hos barn. (fulltekst) Tidsskrift for Den norske legeforening 2009 (129). ISSN 0029-2001.s 1342 - 1344.

  • Lier, Tore; Simonsen, Gunnar Skov; Wang, TC; Lu, D; Haukland, Hanne H; Haukland, HH; Vennervald, BJ; Johansen, MV. Low Sensitivity of the Formol-Ethyl Acetate Sedimentation Concentration Technique in Low-Intensity Schistosoma japonicum Infections. PLoS Neglected Tropical Diseases 2009; Volum 3 (2). ISSN 1935-2727.s doi: 10.1371/journal.pntd.0000386.

  • Trobos, Margarita; Christensen, Henrik; Sunde, Marianne; Nordentoft, Steen; Agersø, Yvonne; Simonsen, Gunnar Skov; Hammerum, Anette M.; Olsen, John E.. Characterization of sulphonamide-resistant Escherichia coli using comparison of sul2 gene sequences and multilocus sequence typing. Microbiology 2009; Volum 155. ISSN 1350-0872.s 831 - 836.s doi: 10.1099/mic.0.024190-0.

  • Naseer, Umaer; Haldorsen, Bjørg; Haldorsen, Bjørg; Tofteland, Ståle; Hegstad, Kristin; Scheutz, Flemming; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn. Molecular characterization of CTX-M-15-producing clinical isolates of Escherichia coli reveals the spread of multidrug-resistant ST131 (O25:H4) and ST964 (O102:H6) strains in Norway. Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS) 2009; Volum 117 (7). ISSN 0903-4641.s 526 - 536.s doi: 10.1111/j.1600-0463.2009.02465.x.

  • Sundsfjord, Arnfinn; Simonsen, Gunnar Skov; Haldorsen, Bjørg; Lundblad, Eirik Wasmuth; Samuelsen, Ørjan. Bredspektrede betalaktamaser hos gramnegative stavbakterier. Tidsskrift for Den norske legeforening 2008; Volum 128 (23). ISSN 0029-2001.s 2741 - 2745.

  • Samuelsen, Ørjan; Buarø, Liselotte; Giske, Christian G.; Simonsen, Gunnar Skov; Aasnæs, Bettina; Sundsfjord, arnfinn. Evaluation of phenotypic tests for the detection of metallo-beta-lactamase-producing Pseudomonas aeruginosa in a low prevalence country. Journal of Antimicrobial Chemotherapy 2008; Volum 61. ISSN 0305-7453.s 827 - 830.s doi: 10.1093/jac/dkn016.

  • Haldorsen, Bjørg C; Aasnaes, Bettina; Dahl, Kristin Hegstad; Hanssen, Anne-Merethe; Simonsen, Gunnar Skov; Walsh, Timothy R; Sundsfjord, arnfinn; Lundblad, Eirik W. The AmpC phenotype in Norwegian clinical isolates of Escherichia coli is associated with an acquired ISEcp1-like ampC element or hyperproduction of the endogenous AmpC. Journal of Antimicrobial Chemotherapy 2008; Volum 62. ISSN 0305-7453.s 694 - 702.s doi: 10.1093/jac/dkn257.

  • Vorobieva, Veronika; Bazhukova, T; Hanssen, AM; Caugant, Dominique A; Semenova, N; Haldorsen, Bjørg C; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn. Clinical isolates of Staphylococcus aureus from the Arkhangelsk region, Russia: antimicrobial susceptibility, molecular epidemiology, and distribution of Panton-Valentine leucocidin genes. Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS) 2008; Volum 116 (10). ISSN 0903-4641.s 877 - 887.s doi: 10.1111/j.1600-0463.2008.01092.x.

  • Lier, T; Johansen, MV; Hjelmevoll, SO; Vennervald, BJ; Simonsen, Gunnar Skov. Real-time PCR for detection of low intensity Schistosoma japonicum infections in a pig model. Acta Tropica 2008; Volum 105 (1). ISSN 0001-706X.s 74 - 80.s doi: 10.1016/j.actatropica.2007.10.004.

  • Stabell, Niklas; Nordal, Ellen; Stensvold, Einar; Gammelsrud, Karianne Wiger; Lund, Bendik; Taxt, Arne; Buhring, Frauke; Greve-Isdahl, Margrethe; Fornebo, Hans Petter; Simonsen, Gunnar Skov; Klingenberg, Claus. Febrile neutropenia in children with cancer: A retrospective Norwegian multicentre study of clinical and microbiological outcome). Scandinavian Journal of Infectious Diseases 2008; Volum 40 (4). ISSN 0036-5548.s 301 - 307.s doi: 10.1080/00365540701670436.

  • Sletvold, H; Johnsen, PJ; Hamre, I; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn; Nielsen, KM. Complete sequence of Enterococcus faecium pVEF3 and the detection of an omega-epsilon-zeta toxin-antitoxin module and an ABC transporter. Plasmid 2008; Volum 60 (1). ISSN 0147-619X.s 75 - 85.s doi: 10.1016/j.plasmid.2008.04.002.

  • Stabell, Niklas; Nordal, Ellen Berit; Stensvold, Einar; Gammelsrud, Karianne Wiger; Lund, Bendik; Buhring, Frauke; Taxt, Arne; Simonsen, Gunnar Skov; Greve-Isdahl, Margrethe; Fornebo, Hans Petter; Klingenberg, Claus. Febrile neutropenia in children with cancer; a retrospective Norwegian multi-centre study of clinical and microbiological outcome. Scandinavian Journal of Infectious Diseases 2007. ISSN 0036-5548.s 1 - 7.

  • Sletvold, H; Johnsen, PJ; Simonsen, Gunnar Skov; Aasnæs, B; Sundsfjord, Arnfinn; Nielsen, KM. Comparative DNA analysis of two vanA plasmids from Enterococcus faecium strains isolated from poultry and a poultry farmer in Norway. Antimicrobial Agents and Chemotherapy 2007; Volum 51 (2). ISSN 0066-4804.s 736 - 739.s doi: 10.1128/AAC.00557-06.

  • Tofteland, Ståle; Haldorsen, Bjørg; Dahl, Kristin Hegstad; Simonsen, Gunnar Skov; Steinbakk, Martin; Walsh, Timothy R; Sundsfjord, Arnfinn. Effects of phenotype and genotype on methods for detection of extended-spectrum-beta-lactamase-producing clinical isolates of Escherichia coli and Klebsiella pneumoniae in Norway. (fulltekst) Journal of Clinical Microbiology 2007; Volum 45 (1). ISSN 0095-1137.s 199 - 205.s doi: 10.1128/JCM.01319-06.

  • Littauer, Pia; Caugant, DA; Sangvik, Maria; Høiby, Ernst Arne; Sundsfjord, Arnfinn; Simonsen, Gunnar S. Macrolide-resistant Streptococcus pyogenes in Norway: Population structure and resistance determinants. Antimicrobial Agents and Chemotherapy 2006; Volum 50 (5). ISSN 0066-4804.s 1896 - 1899.s doi: 10.1128/AAC.50.5.1896-1899.2006.

  • Sørum, Marit; Johnsen, PJ; Aasnes, Bettina; Rosvoll, T; Kruse, H; Sundsfjord, Arnfinn; Simonsen, Gunnar Skov. Prevalence, persistence, and molecular characterization of glycopeptide-resistant enterococci in Norwegian poultry and poultry farmers 3 to 8 years after the ban on avoparcin. Applied and Environmental Microbiology 2006; Volum 72. ISSN 0099-2240.

  • Littauer, Pia; Sangvik, Maria; Caugant, DA; Høiby, EA; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn. Molecular epidemiology of macrolide-resistant isolates of Streptococcus pneumoniae collected from blood and respiratory specimens in Norway. Journal of Clinical Microbiology 2005; Volum 43. ISSN 0095-1137.s 2125 - 2132.

  • Johnsen, Pål Jarle; Østerhus, Jan Ivar; Sletvold, Hege; Sørum, Marit; Kruse, Hilde; Nielsen, Kaare Magne; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn. Persistence of animal and human glycopeptide-resistant enterococci on two Norwegian poultry farms formerly exposed to avoparcin is associated with a widespread plasmid-mediated vanA element within a polyclonal Enterococcus faecium population. Applied and Environmental Microbiology 2005; Volum 71 (1). ISSN 0099-2240.s 159 - 168.

  • Sangvik, Maria; Littauer, Pia; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn; Dahl, Kristin Hegstad. mef(A), mef(E) and a new mef allele in macrolide-resistant Streptococcus spp. isolates from Norway. Journal of Antimicrobial Chemotherapy 2005; Volum 56. ISSN 0305-7453.s 841 - 846.

  • Simonsen, GS; Berdal, Jan Erik; Sundsfjord, A; Berild, D. Simplified and not exact about antibiotics. Tidsskrift for Den norske legeforening 2004; Volum 124 (18). ISSN 0029-2001.s 2397 - .

  • Sundsfjord, Arnfinn; Simonsen, Gunnar Skov; Haldorsen, Bjørg C; Haaheim, Håkon; Hjelmevoll, SO; Littauer, Pia; Dahl, Kristin Hegstad. Genetic methods for detection of antimicrobial resistance. Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS) 2004; Volum 112. ISSN 0903-4641.s 815 - 837.

  • Simonsen, Gunnar S; Bergh, Kåre; Bevanger, Lars Solbu; Digranes, Asbjørn; Gaustad, Peter; Melby, Kjetil K; Høiby, E. Arne. Susceptibility to Quinopristin-Dalfopristin and Linezolid in 839 Clinical Isolates of Gram-Positive Cocci from Norway. Scandinavian Journal of Infectious Diseases 2004; Volum 36. ISSN 0036-5548.s 254 - 258.

  • Simonsen, GS; Bergh, K; Bevanger, L; Digranes, A; Gaustad, Peter; Melby, Kjetil K.; Hoiby, EA. Susceptibility to quinupristin-dalfopristin and linezolid in 839 clinical isolates of gram-positive cocci from Norway. Scandinavian Journal of Infectious Diseases 2004; Volum 36. ISSN 0036-5548.s 254 - 258.

  • Borgen, Katrine; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn; Wasteson, Yngvild; Olsvik, Ørjan; Kruse, Hilde. Continuing high prevalence of VanA-type vancomycin-resistant enterococci on Norwegian poultry farms three years after avoparcin was banned. Journal of Applied Microbiology 2000; Volum 89. ISSN 1364-5072.s 478 - 485.

  • Simonsen, Gunnar Skov; Myhre, Marit Renee; Dahl, Kristin Hegstad; Olsvik, Ørjan; Sundsfjord, Arnfinn. Typability of Tn1546-like elements in vancomycin resistant enterococci using alternative long-range PCRs and specific analysis of polymorpic regions. Microbial Drug Resistance 2000; Volum 6. ISSN 1076-6294.s 49 - 57.

  • Dahl, Kristin Hegstad; Simonsen, Gunnar Skov; Olsvik, Ørjan; Sundsfjord, Arnfinn. Heterogeneity in the vanB gene cluster of genomically diverse clinical strains of vancomycin-resistant enterococci. Antimicrobial Agents and Chemotherapy 1999; Volum 43. ISSN 0066-4804.s 1105 - 1110.

  • Simonsen, Gunnar Skov; Haaheim, Håkon; Dahl, Kristin Hegstad; Kruse, Hilde; Løvseth, Astrid; Olsvik, Ørjan; Sundsfjord, Arnfinn. Transmission of VanA-type vancomycin-resistant enterococci and vanA resistance elements between chicken and humans at avoparcin-exposed farms. Microbial Drug Resistance 1998; Volum 4. ISSN 1076-6294.s 313 - 318.

  • Haaheim, Håkon; Dahl, Kristin Hegstad; Simonsen, Gunnar Skov; Olsvik, Ørjan; Sundsfjord, Arnfinn. Long PCRs of transposons in the structural analysis of genes encoding acquired glycopeptide resistance in enterococci. BioTechniques 1998; Volum 24. ISSN 0736-6205.s 432 - 437.

  • Simonsen, Gunnar Skov. Antimicrobial resistance surveillance in europe and beyond. Eurosurveillance 2018; Volum 23 (42). ISSN 1560-7917.s doi: 10.2807/1560-7917.ES.2018.23.42.1800560.

  • Simonsen, Gunnar Skov; Blix, Hege Salvesen; Grave, Kari; Urdahl, Anne Margrete. NORM/NORM-VET 2017; Usage of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Norway. 2018 (18). ISSN 1502-2307.s 45 - 54.

  • Simonsen, Gunnar Skov. Antibiotikabruk i sykehus og sykehjem. Tidsskrift for Den norske legeforening 2017; Volum 137 (5). ISSN 0029-2001.s 340 - 340.s doi: 10.4045/tidsskr.16.0849.

  • Bollestad, Marianne; Grude, Nils; Lindbæk, Morten; Simonsen, Gunnar Skov. “Mecillinam treatment of UTI caused by ESBL producing E. coli”. GRIN 2017-09-29 - 2017-09-30 2017.

  • Stensen, Dina; Småbrekke, Lars; Olsen, Karina; Grimnes, Guri; Nielsen, Christopher Sivert; Simonsen, Gunnar Skov; Sollid, Johanna U Ericson; Furberg, Anne-Sofie. Hormonal contraceptive use and Staphylococcus aureus nasal and throat carriage in a Norwegian youth population. The Tromsø Study Fit Futures 2.. Norsk forening for epidemiologi: NOFE conference 2017 2017-11-07 - 2017-11-08 2017.

  • Lagesen, Karin; Slettemeås, Jannice Schau; Sekse, Camilla; Sunde, Marianne; Norström, Madelaine; Wester, Astrid Louise; Simonsen, Gunnar Skov; Ulstad, Charlotte Rosenberg; Urdahl, Anne Margrete. GENOMIC CHARACTERIZATION AND COMPARISON OF QUINOLONE RESISTANT ESCHERICHIA COLI FROM POULTRY AND HUMANS IN NORWAY. Applied Bioinformatics and Public Health Microbiology 2017-05-17 - 2017-05-19 2017.

  • Sanabria, Adriana Maria; Johannessen, Mona; Sollid, Johanna U Ericson; Simonsen, Gunnar Skov; Hanssen, Anne-Merethe. Periprosthetic Joint Tissues in Blood Culture Bottles: Evaluation of a New Culturing System.. IBA - annual meeting 2017-11-13 - 2017-11-14 2017.

  • Simonsen, Gunnar Skov; Steinbakk, Martin. Antibiotikaresistens : et økende globalt helseproblem. Bioingeniøren 2017; Volum 52 (3). ISSN 0801-6828.s 12 - 13.

  • Simonsen, Gunnar Skov; Urdahl, Anne Margrete. NORM/NORM-VET 2016 - Usage of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Norway. 2017 (17). ISSN 1502-2307.s 45 - 61.

  • Slettemeås, Jannice Schau; Norström, Madelaine; Sunde, Marianne; Urdahl, Anne Margrete; Wester, Astrid Lousie; Lagesen, Karin; Simonsen, Gunnar Skov; Ulstad, Charlotte Rosenberg; Sekse, Camilla. Quinolone resistant Escherichia coli from broiler in Norway - characterization, comparison to human isolates and molecular risk assessment. 7th Symposium on Antimicrobial Resistance in Animals and the Environment 2017-06-26 - 2017-06-28 2017.

  • Slettemeås, Jannice Schau; Norström, Madelaine; Sunde, Marianne; Urdahl, Anne Margrete; Wester, Astrid Lousie; Simonsen, Gunnar Skov; Ulstad, Charlotte Rosenberg; Sekse, Camilla; Lagesen, Karin. Quinolone resistant Escherichia coli from broiler in Norway - characterization, comparison to human isolates and molecular risk assessment. 26th European Congress of Clinical Microbiology and Infectious Diseases 2016-04-09 - 2016-04-12 2016.

  • Vikan, Ida Marie Nyhagen; Primicerio, Raul; Simonsen, Gunnar Skov; Sollid, Johanna U Ericson; Nielsen, Christopher Sivert; Olsen, Karina; Furberg, Anne-Sofie. Transmission of Staphylococcus aureus in social networks. Regional helseforskningskonferanse 2016-11-02 - 2016-11-03 2016.

  • Vikan, Ida Marie Nyhagen; Primicerio, Raul; Simonsen, Gunnar Skov; Sollid, Johanna U Ericson; Nielsen, Christopher Sivert; Olsen, Karina; Furberg, Anne-Sofie. Transmission of Staphylococcus aureus in social networks. ECCMID 2016-04-09 - 2016-04-12 2016.

  • Esaiassen, Eirin; Cavanagh, Pauline; Hjerde, Erik; Simonsen, Gunnar Skov; Støen, Ragnhild; Klingenberg, Claus. Bifidobacterium longum subspecies infantis bacteremia in 3 extremely preterm infants receiving probiotics. Emerging Infectious Diseases 2016; Volum 22 (9). ISSN 1080-6040.s 1664 - 1666.s doi: 10.3201/eid2209.160033.

  • Simonsen, Gunnar Skov; Urdahl, Anne Margrete. NORM/NORM-VET 2015. 2016 (16). ISSN 1502-2307.s 15 - 23.

  • Slettemeås, Jannice Schau; Sekse, Camilla; Sunde, Marianne; Lagesen, Karin; Norström, Madelaine; Wester, Astrid Lousie; Simonsen, Gunnar Skov; Ulstad, Charlotte Rosenberg; Urdahl, Anne Margrete. Quinolone-resistant Escherichia coli from poultry in Norway – characterization, comparison to human isolates and molecular risk assessment. 26th ECCMID European congress of clinical microbiology and infectious diseases (prosjekt) 2016-04-09 - 2016-04-12 2016.

  • Schølberg, Ulla Gjeset; Ørmen, Torfinn; Simonsen, Gunnar Skov. De viktige vitenskapelige gjennombruddene i 2015. 2015.

  • Andersen, Cecilie Torp; Arnesen, Trude Margrete; Astrup, Elisabeth; Blix, Hege Salvesen; Caugant, Dominique A; Grave, Kari; Larssen, Kjersti Wik; Norström, Madelaine; Radtke, Andreas; Slettemeås, Jannice Schau; Simonsen, Gunnar Skov; Skaare, Dagfinn; Steinbakk, Martin; Syversen, Gaute; Urdahl, Anne Margrete; VESTRHEIM, DIDRIK FRIMANN; Wester, Astrid Lousie; Width-Gran, Frode. NORM/NORM-VET 2014. (data) 2015 (2014). ISSN 1502-2307.

  • Simonsen, Gunnar Skov; Urdahl, Anne Margrete. NORM/NORM-VET 2014. Usage of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Norway.. 2015 (2014). ISSN 1502-2307.s 15 - 18.

  • Berg, Einar Sverre; Wester, Astrid Lousie; Mo, Solveig Sølverød; Slettemeås, Jannice Schau; Steinbakk, Martin; Dahle, Ulf R; Samuelsen, Ørjan; Simonsen, Gunnar Skov; Löhr, Iren Høyland; Jørgensen, Silje; Sunde, Marianne. Highly similar cephalosporin resistant Escherichia coli and AmpC resistance plasmids found in both patients and poultry meat in Norway. ECCMID 2015-04-25 - 2015-04-28 2015.

  • Olsvik, Ørjan; Sundsfjord, Arnfinn; Simonsen, Gunnar Skov; Rogne, Sissel. antibiotika, mirakelmedisinen som kan forsvinne. Aftenposten Viten 2014.s doi: 01.01.2014.

  • Simonsen, Gunnar Skov; Urdahl, Anne Margrete. NORM/NORM-VET 2013. Usage of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Norway. (fulltekst) 2014 (2013). ISSN 1502-2307.s 14 - .

  • Nilsen, Einar; Haldorsen, Bjørg; Sundsfjord, Arnfinn; Simonsen, Gunnar Skov; Ingebretsen, André; Naseer, Mohammed Umaer; Samuelsen, Ørjan. Large IncHI2-plasmids encode extended-spectrum beta-lactamases (ESBLs) in Enterobacter spp. bloodstream isolates, and support ESBL-transfer to Escherichia coli. Clinical Microbiology and Infection 2013; Volum 19 (11). ISSN 1198-743X.s 1091 - 1091.

  • Bellika, Johan Gustav; Yigzaw, Kassaye Yitbarek; Henriksen, Torje Starbo; Ilebrekke, Lars; Skrøvseth, Stein Olav; Bakkevoll, Per Atle; Bønes, Erlend; Leer, Eirik; Johansen, Monika Alise; Chomutare, Taridzo; Simonsen, Gunnar Skov; Geilhufe, Marc; Berntsen, Gro; Gjelstad, Stein Are; Hartvigsen, Gunnar; Godtliebsen, Fred. The Snow system – a distributed medical data processing system. Helseinformatikkuka i Trondheim 2013-09-17 - 2013-09-19 2013.

  • Skrøvseth, Stein Olav; Yigzaw, Kassaye Yitbarek; Henriksen, Torje Starbo; Ilebrekke, Lars; Bakkevoll, Per Atle; Simonsen, Gunnar Skov; Gutteberg, Tore Jarl; Bellika, Johan Gustav. The Snow communicable disease outbreak detection approach. Helseinformatikkuka i Trondheim 2013-09-17 - 2013-09-19 2013.

  • Gravningen, Kirsten; Schirmer, Henrik; Furberg, Anne-Sofie; Simonsen, Gunnar Skov; Wilsgaard, Tom. Self-assessed risk of Chlamydia trachomatis infections among adolescents in Norway. Joint meeting of the 20th ISSTDR and 14th IUSTI, STI&AIDS World Congress 2013-07-14 - 2013-07-17 2013.

  • Simonsen, Gunnar Skov; Urdahl, Anne Margrete. NORM/NORM-VET 2012; Usage of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Norway. 2013 (13). ISSN 1502-2307.s 15 - 20.

  • Olsen, Karina; Simonsen, Gunnar Skov; Sollid, Johanna U Ericson; Wilsgaard, Tom; Sangvik, Maria; Eggen, Anne Elise; Thune, Inger; Furberg, Anne-Sofie. Overweight and obesity are associated with Staphylococcus aureus nasal carriage and spa-types. The Tromsø Staph and Skin Study (TSSS). 15th International Symposium on Staphylococci and Staphylococcal Infections. Lyon, Frankrike. 2012-08-26 - 2012-08-30 2012.

  • Skrøvseth, Stein Olav; Geilhufe, Marc; Yigzaw, Kassaye Yitbarek; Simonsen, Gunnar Skov; Bellika, Johan Gustav; Godtliebsen, Fred. Modeling the spread of infectious diseases by Gaussian Markov Random Fields as a tool for medical decision making. 14th biennial SMDM European meeting 2012-06-10 - 2012-06-12 2012.

  • Gravningen, Kirsten Midttun; Furberg, Anne-Sofie; Simonsen, Gunnar Skov; Wilsgaard, Tom. Chlamydia trachomatis infections among adolescents in a high-incidence area in Norway – who is tested? A population based cross-sectional study. Poster no 45. 13th International Union against Sexually Transmitted Infections World Congress, Melbourne, Australia 2012-10-15 - 2012-10-17 2012.

  • Gravningen, Kirsten Midttun; Furberg, Anne-Sofie; Simonsen, Gunnar Skov; Wilsgaard, Tom. Gender differences in protective effect of condom use against Chlamydia trachomatis infection in high school students in North Norway. Poster no 39. National Sexually Transmitted Disease Prevention Conference, Minneapolis, Minnesota, USA 2012-03-12 - 2012-03-15 2012.

  • Lund, Arve; Simonsen, Gunnar Skov. Norm/Norm-Vet 2011. Usage of Antimicrobiaal Agens and Occurrence of Antimicrobial Resistance in Norway. 2012 (2011). ISSN 1502-2307.s 15 - 19.

  • Pedersen, Torunn Annie; Langnes, Belinda; Rosvoll, Torill Cathrin Solvær; Aasnæs, Bettina; Hammerum, Anette M.; Lester, Camilla; Simonsen, Gunnar Skov; Hegstad, Kristin; Sundsfjord, Arnfinn. Increased prevalence of high-level gentamicin resistance in invasive E. faecium strains in Norway is associated with hospital adapted genetic lineages carrying virulence determinants and aac(6')-Ie-aph(2")-Ia containing transferable megaplasmids. 21st European Congress of Clinical Microbiology and Infectious Diseases 2011-05-07 - 2011-05-10 2011.

  • Simonsen, Gunnar Skov; Chomutare, Taridzo; Ilebrekke, Lars; Bakkevoll, Per Atle; Sjøveian, Anja; Bellika, Johan Gustav. Real-time local epidemiological data through the internet as a management tool for infections in the community. 21st European Congress of Clinical Microbiology and Infectious Diseases (ECCMID) 2011-05-07 - 2011-05-10 2011.

  • Rygh, Ellen; Berntsen, Gro; Simonsen, Gunnar Skov; Bellika, Johan Gustav. The Snow disease surveillance system study. 7th Nordic Congress of General Practice 2011-06-14 - 2011-06-17 2011.

  • Bellika, Johan Gustav; Berntsen, Gro; Simonsen, Gunnar Skov; Rygh, Ellen. Do GPs need online access to epidemiological data of communicable diseases from the local patient population?. 17th Nordic Congress of General Practice 2011-06-14 - 2011-06-17 2011.

  • Lund, Arve; Simonsen, Gunnar Skov. Norm/Norm-Vet 2010. Usage of Antimicrobiaal Agens and Occurrence of Antimicrobial Resistance in Norway. 2011 (1). ISSN 1502-2307.s 15 - 18.

  • Norström, Madelaine; Simonsen, Gunnar Skov. Norm/Norm-Vet 2009. Usage of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Norway. 2010 (1). ISSN 1502-2307.

  • Olsen, Karina; Simonsen, Gunnar Skov; THUNE, INGER; Sollid, johanna u ericson; Furberg, Anne Sofie. Staphylococcus aureus nasal carriage among health care workers in the general population. The Tromsø Staph and Skin Study. 14th International symposium on Staphylococci and Staphylococcal Infections (ISSSI) 2010-09-06 - 2010-09-09 2010.

  • Ulvestad, Elling; Swensen, Elisabeth; Simonsen, Gunnar Skov; Schei, Edvin. Pandemien - bidrag til etterpåklokskap. Tidsskrift for Den norske legeforening 2010; Volum 130. ISSN 0029-2001.s 169 - 171.

  • Vorobieva, Veronika; Naseer, Umaer; Bazhukova, Tatiana; Semenova, Nadezda; Haldorsen, Bjørg Christina; Aasnaes, Bettina; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn. Urinary tract isolates of Enterobacteriaceae from hospitalized patients in the Arkhangelsk region, Russia: Antimicrobial susceptibility and characterization of extended-spectrum beta-lactamases strains. Scandinavian Journal of Infectious Diseases 2010; Volum 42 (10). ISSN 0036-5548.s 797 - 800.s doi: 10.3109/00365541003798292.

  • Haldorsen, Bjørg C; Olsen, Karina; Sollid, johanna u ericson; Haukland, HH; Sundsfjord, arnfinn; Simonsen, Gunnar Skov; Breivik, s; G, Larsen; Furberg, Anne Sofie. Nasal and throat swab cultures for the assassment of S. aureus colonization and carriage in The Tromsø Staph and Skin Study. European Congress of Clinical Microbiology and Infectious Diseases 2009-05-16 - 2009-05-19 2009.

  • Haldorsen, Bjørg; Aasnæs, Bettina; Hegstad, Kristin; Hanssen, Anne-Merethe; Simonsen, Gunnar Skov; Walsh, Timothy R; Sundsfjord, arnfinn; Lundbland, Eirik. AmpC b-lactamases in Norwegian clinical isolates of E. coli. 26th Annual Meeting of the Scandinavian Society for Antimicrobial Chemotherapy 2009-09-03 - 2009-09-06 2009.

  • Haldorsen, Bjørg C; Olsen, Karina; Sollid, johanna u ericson; Haukland, HH; Sundsfjord, arnfinn; Simonsen, Gunnar Skov; Breivik, s; Larsen, G; Furberg, Anne Sofie. Nasal and throat swab cultures for the assassment of Staphylococcus aureus colonization and carriage. The Tromsø Staph and Skin Study. The 26th annual meeting of the Scandinavian Society for Antimicrobial Chemotherapy 2009-09-03 - 2009-09-06 2009.

  • Olsen, Karina; Simonsen, Gunnar Skov; Sundsfjord, arnfinn; Haukland, HH; Sollid, johanna u ericson; Danielsen, K; Haldorsen, Bjørg C; Eggen, Anne Elise; Furberg, Anne Sofie. Staphylococcus aureus nasal and throat carriage in a large community-based population. 26th Annual meeting ogf the Scandinavian Society for Antimicobial Chemotherapy 2009-09-03 - 2009-09-06 2009.

  • Olsen, Karina; Simonsen, Gunnar Skov; Sundsfjord, arnfinn; Haukland, HH; Sollid, johanna u ericson; Danielsen, K; Haldorsen, Bjørg C; Eggen, Anne Elise; Furberg, Anne Sofie. The epidemiology of Staphylococcus aureus nasal and throat carriage in a large community-based population in North Norway - The Tromsø Staph and Skin Study. European Congress og Clinical Microbiology and Infectious Diseases 2009-05-16 - 2009-05-19 2009.

  • Straand, Jørund; Gradmann, Christoph; Lindbæk, Morten; Simonsen, Gunnar Skov. Antibiotic Development and Resistance. Elsevier 2008 ISBN 978-0122272257.s 200 - 211.

  • Naseer, Umaer; Haldorsen, Bjørg C; Dahl, Kristin Hegstad; Scheutz, Flemming; Simonsen, Gunnar Skov; Walsh, Timothy R.; Sundsfjord, arnfinn. CTX-M Producing Multi-drug Resistant Clinical Isolates of Escherichia coli in Norway are Associated with Virulent Genetic Lineages. 107th General Meeting 2007-05-21 - 2007-05-25 2007.

  • Sletvold, hege; Johnsen, Pål jarle; Simonsen, Gunnar Skov; Sundsfjord, arnfinn; Nielsen, Kaare Magne. Complete DNA sequence of the Enterococcus faecium vanA plasmid pIP816, and comparative analyses to vanA plasmids isolated from poultry farmer E. faecium strains. Plasmid 2007; Volum 57 (2). ISSN 0147-619X.s 239 - 239.

  • Bellika, Johan Gustav; Aronsen, Gudleif; Johansen, Monika Alise; Hartvigsen, Gunnar; Simonsen, Gunnar Skov. The Snow Agent System: A peer-to-peer system for disease surveillance and diagnostic assistance. 2007.

  • Norstrõm, Madelaine; Simonsen, Gunnar Skov. NORM/NORM-VET 2007. Usage of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Norway. (data) 2007.s 68 - 70.

  • Aronsen, Gudleif; Bellika, Johan Gustav; Hartvigsen, Gunnar; Simonsen, Gunnar Skov. Visualization of contagious disease outbreak information for primary care physicians. 2007.

  • Bellika, Johan Gustav; Aronsen, Gudleif; Johansen, Monika Alise; Hartvigsen, Gunnar; Simonsen, Gunnar Skov. The Snow Agent System: A peer-to-peer system for disease surveillance and diagnostic assistance. International Society for Disease Surveillance: Sixth Annual Conference 2007-10-11 - 2007-10-12 2007.

  • Vorobieva, Veronika; Bazhukova, T; Semenova, N.; Haldorsen, Bjørg C; Bettina, A.; Simonsen, Gunnar Skov; Sundsfjord, arnfinn. Clinical urinary tract isolates of Entero-bacteriaceae in the Arkhangelsk region, Russian Federation: antimicrobial resistance profiles and characterisation of ESBL-strains. 25th International Congress of Chemotherapy 2007-03-31 - 2007-04-03 2007.

  • Haldorsen, Bjørg; Lundblad, Eirik W; AasnÆs, bettina; Dahl, Kristin Hegstad; Hanssen, Anne-Merethe; Simonsen, Gunnar Skov; Walsh, TR; Sundsfjord, arnfinn. Evaluation of an AmpC disk test and genetic detection of imported ampC-genes in Norwegian clinical strains of E. coli. 16th European Congress of Clinical Microbiology and Infectious Diseases 2006-04-01 - 2006-04-04 2006.

  • Naseer, Umaer; Haldorsen, Bjørg C; Tofteland, Ståle; Dahl, Kristin Hegstad; Simonsen, Gunnar Skov; Walsh, Timothy R.; Sundsfjord, arnfinn. Virulent clones of E.coli are associated with CTX-M type ESBL-production and multi-resistance in Norway. Årskonferansen 2006, Nasjonalt Folkehelseinstitutt 2006-12-07 - 2006-12-08 2006.

  • Littauer, Pia; Haldorsen, Bjørg C; Kraemer, Manuela; AasnÆs, bettina; Simonsen, Gunnar Skov; Sundsfjord, arnfinn. Macrolide resistant determinants are prevalent and readily selected for in viridans group streptococci among healthy Norwegian adults. European Congress of Clinical Microbiology and Infectious Diseases 2006-04-01 - 2006-04-04 2006.

  • Sletvold, hege; Johnsen, Pål jarle; Simonsen, Gunnar Skov; AasnÆs, bettina; Sundsfjord, Arnfinn; Nielsen, Kaare Magne. Complete nucleotide sequence of the VanA glycopeptide resistance-mediating plasmid p399/F99/A9 from Enterococcus faecium. ASM-FEMS Conference on Enterococci 2005-08-28 - 2005-08-31 2005.

  • Vorobieva, Veronika; Bazhukova, T; Semenova, N; Haldorsen, Bjørg; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn. Clinical isolates of Staphylococcus auresus in the Arkangelsk region, Russia: prevalence of antimicrobial resistance and molecular epidemiology of methicillin-resistant strains. ESCMID 2005-04-02 - 2005-04-05 2005.

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