Petter Elstrøm
Senior researcher
Contact
Send email {model.translations.sendEmailTo} Petter.Elstrom@fhi.no
Department
Responsibilities
Petter Elstrøm is a senior researcher at the Center for Epidemic Interventions Research and studies the effect of infection control measures, with particular focus on measures that are central to managing pandemics.
Projects and publications
- Simon Galmiche, Camille Coustaury, Kelly Charniga, Rebecca Grant, Simon Cauchemez, Arnaud Fontanet, Brigitte Autran, Matthew Barnbrook, Henrique Barros, Paolo Bosetti, Lisa Brouwers, Natalia Bustos-Sierra, Lasse Engbo Christiansen, Jean-François Delfraissy, Christiane Diehl, Petter Elstrøm, Magnus Gisslen, Johanna Hanefeld, Niel Hens, Mary Horgan, Laetitia Huiart, Yann Le Strat, Adrian Lison, Patrick Mallon, Sarah Kristine Norgaard, Miquel Oliu-Barton, Juliette Paireau, Emma Rourke, Julien Riou, Fernando Simon, Tanja Stadler, Anders Tegnell, Alexander Ullrich, Pierre van Damme, Susan van den Hof, Jaap van Dissel, Steven Van Gucht, Jacco Wallinga, Simon Whitfield, Yazdan Yazdanpanah, (2024). Patterns and drivers of excess mortality during the COVID-19 pandemic in 13 Western European countries. BMC Global and Public Health s. 1-17. doi: 10.1186/s44263-024-00103-z
- Runar Barstad Solberg, Atle Fretheim, Ingeborg Hess Elgersma, Mette Fagernes, Bjørn Gunnar Iversen, Lars G. Hemkens, Christopher James Rose, Petter Elstrøm, (2024). Personal protective effect of wearing surgical face masks in public spaces on self-reported respiratory symptoms in adults: pragmatic randomised superiority trial. The BMJ doi: 10.1136/bmj-2023-078918
- Silje Rebekka Heltveit-Olsen, Unni Gopinathan, Hege Salvesen Blix, Petter Elstrøm, Sigurd Høye, (2024). Effect of methenamine hippurate shortage on antibiotic prescribing for urinary tract infections in Norway - an interrupted time series analysis. Journal of Antimicrobial Chemotherapy s. 1109-1117. doi: 10.1093/jac/dkae078
- Ingeborg Hess Elgersma, Atle Fretheim, Petter Elstrøm, Preben Aavitsland, (2023). Association between Face mask use and Risk of SARS-CoV-2 Infection - Cross-sectional study. Epidemiology and Infection s. 1-5. doi: 10.1017/S0950268823001826
- Anders Skyrud Danielsen, Petter Elstrøm, Hanne-Merete Eriksen-Volle, Solveig Sand-Hanssen Hofvind, David W. Eyre, Oliver Kacelnik, Jørgen Bjørnholt, (2023). The epidemiology of multidrug-resistant organisms in persons diagnosed with cancer in Norway, 2008–2018: expanding surveillance using existing laboratory and register data. European Journal of Clinical Microbiology and Infectious Diseases s. 121-132. doi: 10.1007/s10096-023-04698-3
- Oskar Ljungquist, Bjørg Haldorsen, Anna Kaarina Pöntinen, Jessin Janice, Ellen Haldis Josefsen, Petter Elstrøm, Oliver Kacelnik, Nina Handal, Trond Egil Ranheim, Bent-Are Hansen, Andreas Fossum Mjøen, Paul Christoffer Lindemann, Einar Nilsen, Kyriako Zaragkoulias, Hege Elisabeth Larsen, Jørgen Bjørnholt, Karianne Wiger Gammelsrud, Iren Høyland Löhr, Anders Bredberg, Åshild Marvik, Christina Minge, Ståle Tofteland, Kristina Papp, Annette Onken, Einar Tollaksen Weme, Brian Albert Guennigsman, Arnfinn Sundsfjord, Ørjan Samuelsen, (2023). Nationwide, population-based observational study of the molecular epidemiology and temporal trend of carbapenemase-producing Enterobacterales in Norway, 2015 to 2021. Eurosurveillance s. 1-11. doi: 10.2807/1560-7917.es.2023.28.27.2200774
- Petter Langlete, Martin Steen Tesli, Lamprini Veneti, Jostein Starrfelt, Petter Elstrøm, Hinta Meijerink, (2023). Estimated vaccine effectiveness against SARS-CoV-2 Delta and Omicron infections among health care workers and the general adult population in Norway, August 2021 – January 2022. Vaccine s. 3923-3929. doi: 10.1016/j.vaccine.2023.05.022
- Atle Fretheim, Ingeborg Hess Elgersma, Arnfinn Helleve, Petter Elstrøm, Oliver Kacelnik, Lars G. Hemkens, (2022). Effect of Wearing Glasses on Risk of Infection With SARS-CoV-2 in the Community: A Randomized Clinical Trial. JAMA Network Open doi: 10.1001/jamanetworkopen.2022.44495
- Kristian Bandlien Kraft, Ingeborg Hess Elgersma, Trude Marie Lyngstad, Petter Elstrøm, Kjetil Elias Telle, (2022). COVID-19 vaccination rates among healthcare workers by immigrant background: A nation-wide registry study from Norway. Scandinavian Journal of Public Health doi: 10.1177/14034948221100685
- Ingeborg Hess Elgersma, Kjetil Elias Telle, Petter Elstrøm, Håvard Mikal Skagseth, Oliver Kacelnik, (2022). Transmission of severe acute respiratory coronavirus virus 2 (SARS-CoV-2) between hospital workers and members of their household: Nationwide, registry-based, cohort study from Norway. Infection control and hospital epidemiology s. 1-6. doi: 10.1017/ice.2022.108
- Sara Josefine Sagstuen Stebbings, Torill Alise Rotevatn, Vilde Bergstad Larsen, Pål Suren, Petter Elstrøm, Margrethe Greve-Isdahl, Tone Kristin Bjordal Johansen, Elisabeth Astrup, (2022). Experience with open schools and preschools in periods of high community transmission of COVID-19 in Norway during the academic year of 2020/2021. . BMC Public Health doi: 10.1186/s12889-022-13868-5
- Kirsten Midttun Gravningen, Oliver Kacelnik, Egil Lingaas, Torunn Pedersen, Bjørn Gunnar Iversen, Anne Mette Asfeldt, Anita Blomfeldt, Bente Cecilie Borgen, Petter Elstrøm, Gro Grimnes, Nils Olav Hermansen, André Ingebretsen, Jessin Janice, Silje Bakken Jørgensen, Kristin Kilhus, Julie Andrine Korpås, Pia Littauer, Birgitte Lyrån, Iren Høyland Löhr, Marie Therese Noer, Dag Harald Skutlaberg, Arnfinn Sundsfjord, Mari Nythun Utheim, Liz Ertzeid Ødeskaug, (2022). Pseudomonas aeruginosa countrywide outbreak in hospitals linked to pre-moistened non-sterile washcloths, Norway, October 2021 to April 2022. Eurosurveillance doi: 10.2807/1560-7917.ES.2022.27.18.2200312
- Torill Alise Rotevatn, Petter Elstrøm, Margrethe Greve-Isdahl, Pål Suren, Tone Kristin Bjordal Johansen, Elisabeth Astrup, (2022). School Closure Versus Targeted Control Measures for SARS-CoV-2 Infection. Pediatrics s. 1-10. doi: 10.1542/peds.2021-055071
- Kirsten Midttun Gravningen, Stian Henriksen, Olav Hungnes, Kristian Svendsen, Emily Ann Macdonald, Henrik Schirmer, Kathrine Stene-Johansen, Gunnar Skov Simonsen, Oliver Kacelnik, Petter Elstrøm, Karoline Bragstad, Christine Hanssen Rinaldo, (2022). Risk factors, immune response and whole‐genome sequencing of SARS‐CoV‐2 in a cruise ship outbreak in Norway. International Journal of Infectious Diseases s. 10-20. doi: 10.1016/j.ijid.2022.02.025
- Atle Fretheim, Lars G. Hemkens, Arnfinn Helleve, Petter Elstrøm, Ingeborg Hess Elgersma, Oliver Kacelnik, (2022). The GLasses Against transmission of SARS-CoV-2 in the communitY (GLASSY) trial: A pragmatic randomized trial (study protocol). medRxiv doi: 10.1101/2022.02.04.22270120
- Hege Enger, Kjersti Wik Larssen, Elise Størvold Damås, Hege Vangstein Aamot, Anita Blomfeldt, Petter Elstrøm, Christina Gabrielsen Ås, (2021). A tale of two STs: molecular and clinical epidemiology of MRSA t304 in Norway 2008–2016. European Journal of Clinical Microbiology and Infectious Diseases s. 1-10. doi: 10.1007/s10096-021-04353-9
- Håvard Haugnes, Petter Elstrøm, Oliver Kacelnik, Urszula Agnieszka Jadczak, Torbjørn Wisløff, Birgitte Freiesleben de Blasio, (2019). Financial and Temporal Costs of Patient Isolation in Norwegian Hospitals. Journal of Hospital Infection doi: 10.1016/j.jhin.2019.11.012
- Anders Skyrud Danielsen, Petter Elstrøm, Trude Margrete Arnesen, Unni Gopinathan, Oliver Kacelnik, (2019). Targeting TB or MRSA in Norwegian municipalities during ‘the refugee crisis’ of 2015: a framework for priority setting in screening. Eurosurveillance doi: 10.2807/1560-7917.es.2019.24.38.1800676
- Petter Elstrøm, Carl Andreas Grøntvedt, Christina Gabrielsen Ås, Marc Stegger, Øystein Angen, Solfrid Åmdal, Hege Enger, Anne Margrete Urdahl, Solveig Jore, Martin Steinbakk, Marianne Sunde, (2019). Livestock-Associated MRSA CC1 in Norway; Introduction to Pig Farms, Zoonotic Transmission, and Eradication. Frontiers in Microbiology doi: 10.3389/fmicb.2019.00139
- Petter Elstrøm, Elisabeth Astrup, Kristin Hegstad, Ørjan Samuelsen, Hege Enger, Oliver Kacelnik, (2019). The fight to keep resistance at bay, epidemiology of carbapenemase producing organisms (CPOs), vancomycin resistant enterococci (VRE) and methicillin resistant Staphylococcus aureus (MRSA) in Norway, 2006-2017. PLOS ONE s. 1-17. doi: 10.1371/journal.pone.0211741
- Pete Thomas Ndaula Kinross, Andreas Petersen, Robert Skov, Evelyn Van Hauwermeiren, Annalisa Pantosti, Frédéric Laurent, Andreas Voss, Jan Kluytmans, Marc J. Struelens, Ole Heuer, Dominique L. Monnet, Kjersti Wik Larssen, Petter Elstrøm, (2017). Livestock-associated meticillin-resistant Staphylococcus aureus (MRSA) among human MRSA isolates, European Union/European Economic Area countries, 2013. Eurosurveillance s. 1-13. doi: 10.2807/1560-7917.ES.2017.22.44.16-00696
- A Elizabeth S Andreassen, Caroline M Jacobsen, Birgitte Freiesleben De Blasio, Richard White, Ivar Sønbø Kristiansen, Petter Elstrøm, (2017). The impact of methicillin-resistant S. aureus on length of stay, readmissions and costs: a register based case-control study of patients hospitalized in Norway. Antimicrobial Resistance & Infection Control doi: 10.1186/s13756-017-0232-x
- Anita Blomfeldt, Kjersti Wik Larssen, Arsalan Moghen, Christina Gabrielsen, Petter Elstrøm, Hege Vangstein Aamot, Silje Jørgensen, (2017). Emerging multidrug-resistant Bengal Bay clone ST772-MRSA-V in Norway: molecular epidemiology 2004-2014. European Journal of Clinical Microbiology and Infectious Diseases s. 1911-1921. doi: 10.1007/s10096-017-3014-8
- Carl Andreas Grøntvedt, Petter Elstrøm, Marc Stegger, Robert L Skov, Paal Skytt Andersen, Kjersti Wik Larssen, Anne Margrete Urdahl, Øystein Angen, Jesper Larsen, Solfrid Åmdal, Siri Løtvedt, Marianne Sunde, Jørgen Bjørnholt, (2016). Methicillin-resistant Staphylococcus aureus CC398 in humans and pigs in Norway: A "One Health" perspective on introduction and transmission. Clinical Infectious Diseases s. 1431-1438. doi: 10.1093/cid/ciw552
- Cecilie Torp Andersen, Trude Margrete Arnesen, Caugant Dominique, Petter Elstrøm, Kjersti Wik Larssen, Gunnar Skov Simonsen, Dagfinn Skaare, Martin Steinbakk, Gaute Syversen, DIDRIK FRIMANN VESTRHEIM, Frode Width-Gran, (2014). HUMAN CLINICAL ISOLATES.
- Gunnar Skov Simonsen, Martin Steinbakk, Petter Elstrøm, Kjersti Wik Larssen, Frode Width Gran, DIDRIK FRIMANN VESTRHEIM, Andreas Radtke, Karin Rønning, Cecilie Torp Andersen, Susanne Gjeruldsen Dudman, Olav Hungnes, (2013). Human Clinical Isolates. s. 57-85.
- Petter Elstrøm, Oliver Kacelnik, Tone Bruun, Bjørn Gunnar Iversen, Siri Helene Hauge, Preben Aavitsland, (2012). Meticillin-resistant Staphylococcus aureus in Norway, a low-incidence country, 2006-2010. Journal of Hospital Infection s. 36-40. doi: 10.1016/j.jhin.2011.10.004
- S Kalenic, B Cookson, R Gallagher, W Popp, A Asensio-Vegas, O Assadian, A Blok, S Brussafero, A Eastaway, Petter Elstrøm, M Girod Schreinerova, P Hartemann, Bjørn Gunnar Iversen, B Jans, A Jul-Jorgensen, W Koller, A Kramer, D Laugesen, M Licker, K Mannerquist, B Nussbaum, P Parneix, T de Ruiter, E Tvenstrup Jensen, L Ummels, K-D Zastrow, (2010). Comparison of recommendations in national/ regional Guidelines for prevention and control of MRSA in thirteen European countries. International Journal of Infection Control doi: 10.3396/ijic.V6i2.016.10
- AM Koch, Hanne-Merete Eriksen, Petter Elstrøm, Preben Aavitsland, S Harthug, (2009). Severe consequences of healthcare-associated infections among residents of nursing homes: A cohort study. Journal of Hospital Infection s. 269-274. doi: 10.1016/j.jhin.2008.10.032
- Petter Elstrøm, Preben Aavitsland, (2008). Meticillinresistente gule stafylokokker i Norge. Tidsskrift for Den norske legeforening (Tidsskriftet) s. 2730-2733.
- Petter Elstrøm, Bjørn Gunnar Iversen, Preben Aavitsland, (2008). Bør barn adoptert fra utlandet undersøkes for meticillinresistente stafylokokker?. Tidsskrift for Den norske legeforening (Tidsskriftet) s. 291-293.
- Hanne-Merete Eriksen, AM Koch, Petter Elstrøm, Roy M Nilsen, Stig Harthug, Preben Aavitsland, (2007). Healthcare-associated infection among residents of long-term care facilities: a cohort and nested case-control study. Journal of Hospital Infection s. 334-340. doi: 10.1016/j.jhin.2006.11.011
- Tore W. Steen, Per Hjortdahl, Gunnar Størvold, Kostas Vilimas, Petter Elstrøm, Ingrid Esholdt, Gunnar Kvalvaag, (2005). Forekomst av genital infeksjon med Chlamydia trachomatis blant18-29-åringer i Oslo. Tidsskrift for Den norske legeforening (Tidsskriftet) s. 1637-1639.
- Christopher James Rose, Petter Elstrøm, (2024). Statistical Analysis Plan: Evaluation of the National tool for observation of infection prevention measures in the healthcare (NOST) - a cluster randomized trial.
- Mona Bjørbæk, Ingeborg Hess Elgersma, Cathinka Halle Julin, Petter Elstrøm, Signe Agnes Flottorp, Atle Fretheim, Christine Holst, Unni Gopinathan, Heather Eileen Menzies Munthe-Kaas, Andrew David Oxman, Matthew Prescott Oxman, Christopher James Rose, Sarah Ellen Rosenbaum, Runar Barstad Solberg, Tone Bruun, Arnfinn Helleve, Simon Arnold Lewin, Annlaug Selstø, (2024). Centre for Epidemic Interventions Research (CEIR) Annual Report 2023.
- Mette Fagernes, Hanne-Merete Eriksen-Volle, Christine Holst, Christopher James Rose, Runar Barstad Solberg, Petter Elstrøm, (2023). Study protocol: Evaluation of the National tool for observation of infection prevention measures in the healthcare (NOST) – a cluster randomized trial.
- Gunnar Skov Simonsen, Hege Salvesen Blix, Kari Grave, Anne Margrete Urdahl, Per Espen Akselsen, Cecilie Torp Andersen, Dominique Andree Yvette Caugant, Live Storehagen Dansie, Petter Elstrøm, (2022). NORM/NORM-VET 2021: Usage of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Norway.
- Kirsten Midttun Gravningen, Liz Ertzeid Ødeskaug, Mari Nythun Utheim, Julie Andrine Korpås, Silje Bakken Jørgensen, Petter Elstrøm, Birgitte Lyrån, Rune Jemtland, Nicola Isabelle Kols, Siv Anita Kvaal, anne mette Asfeldt, Pia Littauer, Kristin Kilhus, Dag Harald Skutlaberg, Torunn Annie Pedersen, Nils Olav Hermansen, Oliver Kacelnik, Bjørn Gunnar Iversen, (2022). Nasjonalt utbrudd av Pseudomonas aeruginosa i sykehus forårsaket av ferdigfuktede ikke-sterile vaskekluter, Norge, 2021-2022 .
- Elisabeth Astrup, Idunn Forland Aune, Petter Elstrøm, Margrethe Greve-Isdahl, Frode Hagen, Tone Kristin Bjordal Johansen, Heidi Lange, Elisabeth Henie Madslien, Karin Maria Nygård, Torill Alise Rotevatn, Bjørn Sletvold, Sara Josefine Sagstuen Stebbings, Ottar Wiklund, (2021). Vurdering av utbruddssituasjonen i skoler og barnehager mars 2021.
- Petter Elstrøm, Monica Falk, Frode Forland, Petter Leinaas Heradstveit, Julie Andrine Korpås, Svein Lie, Heidi Lange, Emily Ann Macdonald, Mohammed Umaer Naseer, Truc Trung Nguyen, Karin Maria Nygård, Annlaug Selstø, Mari Nythun Utheim, Didrik Frimann Vestrheim, Liz Ertzeid Ødeskaug, (2021). Erfaringsgjennomgang etter utvalgte utbrudd av covid-19 i Norge, desember 2020 – mars 2021.
- Thale Cathrine Berg, Hege Line Magnussen Løwer, Torunn Alberg, Øyunn Holen, Petter Elstrøm, Oliver Kacelnik, Hanne-Merete Eriksen-Volle, Mette Fagernes, (2019). Årsrapport 2018. Helsetjenesteassosierte infeksjoner, antibiotikabruk (NOIS), antibiotikaresistens (MSIS) og Verdens håndhygienedag .
- AB Kristoffersen, Carl Andreas Grøntvedt, Saraya Tavornpanich, Petter Elstrøm, Madelaine Norström, (2016). Spredningsmodell og samfunnsøkonomisk analyse av tiltak mot LA-MRSA.
- Bernardo Rafael Guzmán Herrador, Heidi Lange, Susan G. Dudman, Berit Sofie Wiklund, Jeanette Stålcrantz, Synne Sandbu, Joakim Øverbø, Ingeborg Sundsvalen Aaberge, Audun Aase, Arnulf Soleng, Petter Elstrøm, Oliver Kacelnik, Tone Bruun, Karin Maria Nygård, Preben Skrede Ottesen, Line Vold, Hans Henrik Blystad, (2015). Smittsomme sykdommer hos utenlandsreisende 2014 og utviklingstrekk i perioden 2010–2014.
- Bernardo Rafael Guzmán Herrador, Thale Cathrine Berg, Jørgen Bjørnholt, Petter Elstrøm, Oliver Kacelnik, Georg Kapperud, Heidi Lange, Emily Ann Macdonald, Ragnhild Tønnessen, Line Vold, Karin Maria Nygård, (2015). Utbrudd av smittsomme sykdommer i Norge i 2014.
- Bernardo Rafael Guzmán Herrador, Trude Margrete Arnesen, Thale Cathrine Berg, Jørgen Bjørnholt, Petter Elstrøm, Oliver Kacelnik, Georg Kapperud, Heidi Lange, Emily MacDonald, Line Vold, Karin Maria Nygård, (2014). Utbrudd av smittsomme sykdommer i Norge. Årsrapport 2013.
- Tone Bruun, Trude Arnesen, Petter Elstrøm, Kirsten Konsmo, Øivind Jul Nilsen, Hans Henrik Blystad, (2013). MSIS og Tuberkuloseregisteret. Årsstatistikk for 2012 og beskrivelse og evaluering av registrene.
- Bernardo Guzman Herrador, Horst Bentele, Thale Cathrine Berg, Jørgen Bjørnholt, Tone Bruun, Petter Elstrøm, Oliver Kacelnik, Georg Kapperud, Heidi Lange, Emily MacDonald, Line Vold, Karin Maria Nygård, (2013). Utbrudd av smittsomme sykdommer i Norge i 2012. Årsrapport.
- Per Espen Akselsen, Petter Elstrøm, (2012). Smittevern i helsetjenesten.
- Bernardo Guzman Herrador, Trude Arnesen, Tone Bruun, Susanne Gjeruldsen Dudman, Petter Elstrøm, Heidi Lange, Karin Maria Nygård, Preben Ottesen, Synne Sandbu, Arnulf Soleng, Jeanette Stålcrantz, M Kirsti Vainio, Line Vold, Berit Sofie Wiklund, Ingeborg Sundsvalen Aaberge, Audun Aase, Hans Henrik Blystad, (2012). Smittsomme sykdommer hos utenlandsreisende. Årsrapport 2011.
- Georg Kapperud, Karin Maria Nygård, Petter Elstrøm, Line Vold, Berit Tafjord Heier, Bjørn Arne Lindstedt, (2008). Blir vi syke av norsk kjøtt? Hvilken betydning har norskprodusert kjøtt og kjøttprodukter som smittekilde: Hva vet vi, og hva har vi behov for å vite?.
- Bjørn Lium, Magne Kaldhusdal, Ståle Sviland, Hans Petter Kjæstad, Kofitsyo S Cudjoe, Berit K Djønne, Inger Sofie Hamnes, Merete Hofshagen, Anne Margrete Urdahl, Gro Johannessen, Georg Kapperud, Karin Maria Nygård, Petter Elstrøm, Line Vold, Berit Tafjord Heier, Preben Aavitsland, (2007). Kunnskapsstatus knyttet til mattrygghet og smittespredning — Kjøtt og kjøttprodukter fra storfe, småfe, svin og fjørfe.
- Petter Elstrøm, (2005). Smittevern i helseinstitusjoner.
- Anders Skyrud Danielsen, Petter Langlete, Celia Souque, Chang-Ho Yoon, Mari Molvik, Miriam Sare, Hanne-Merete Eriksen-Volle, Unni Gopinathan, Petter Elstrøm, (2025). Impact of the cessation and reopening of international travel during the COVID-19 pandemic on the incidence of MRSA and CPO in Norway, 2016-2024.
- Ingeborg Hess Elgersma, Petter Elstrøm, Lars G. Hemkens, Arnfinn Helleve, Oliver Kacelnik, Atle Fretheim, (2024). Effect of wearing glasses for prevention of SARS-CoV-2 on visits to health care providers—additional results from a randomized controlled trial. Trials doi: 10.1186/s13063-024-08602-y
- Atle Fretheim, Petter Elstrøm, Cathinka Lønning Halle, Unni Gopinathan, Ingeborg Hess Elgersma, Runar Barstad Solberg, Arnfinn Helleve, (2024). Why were so few randomized trials of public health and social measures conducted during the COVID-19 pandemic? The Norwegian experience. Trials doi: 10.1186/s13063-024-08547-2
- Anders Skyrud Danielsen, Petter Elstrøm, Trude Margrete Arnesen, Unni Gopinathan, Oliver Kacelnik, (2018). Evaluering av rådet om screeningregimer for nyankomne asylsøkere: en registerbasert kohortstudie.
- Merete Hofshagen, Petter Elstrøm, (2017). LA-MRSA in Norway.
- Carl Andreas Grøntvedt, Petter Elstrøm, Marc Stegger, Robert L Skov, Paal Skytt Andersen, Kjersti Wiik Larsen, Anne Margrete Urdahl, Øystein Angen, Jesper Larsen, Solfrid Åmdal, Siri Løtvedt, Marianne Sunde, Jørgen Bjørnholt, (2016). MRSA CC398 in humans and pigs in Norway – Introduction and transmission.
- Carl Andreas Grøntvedt, Øystein Angen, Aina Steihaug Barstad, Solfrid Åmdal, Siri Løtvedt, Kjersti Wik Larssen, Petter Elstrøm, Marc Stegger, Robert L Skov, Anne Margrete Urdahl, (2015). MRSA CC1 t177, livestock associated?.
- Øystein Angen, Marc Stegger, Carl Andreas Grøntvedt, Petter Elstrøm, Jørgen Bjørnholt, Paal Skytt Andersen, Marianne Sunde, Anne Margrete Urdahl, Kjersti Wik Larssen, Solfrid Åmdal, Siri Løtvedt, Robert L Skov, (2015). Whole genome sequencing of MRSA CC398 - indication of several introductions to Norway.
- L Heggelund, H Holm Samdal, R Eggum, T Jacobsen, Tone Bruun, Petter Elstrøm, (2007). Severe case of invasive community-acquired methicillin-resistant Staphylococcus aureus infection in Norway. Eurosurveillance