Martin Sundqvist

Articles in journals

• Kornfält Isberg, H. , Sundqvist, M. , Melander, E. , Beckman, A. & Hedin, K. (2025). Bacterial growth and antimicrobial resistance in urinary Escherichia coli isolates among men with lower UTI in Swedish primary healthcare: retrospective data over a 4 year period.  JAC - Antimicrobial Resistance, 7 (1). [BibTeX]
• Björnberg, A. , Nestor, D. , Peker, N. , Sinha, B. , Couto, N. , Rossen, J. , Sundqvist, M. & Mölling, P. (2025). Critical Steps in Shotgun Metagenomics-Based Diagnosis of Bloodstream Infections Using Nanopore Sequencing.  Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS), 133 (1). [BibTeX]
• Hofmann, R. , James, S. , Sundqvist, M. O. , Wärme, J. , Fröbert, O. , Angerås, O. , Hellström, P. M. , Hambraeus, K. & et al. (2025). HELicobacter Pylori screening to prevent gastrointestinal bleeding in patients with acute Myocardial Infarction(HELP-MI SWEDEHEART)Design and rationale of a cluster randomized, crossover, registry-based clinical trial.  American Heart Journal. [BibTeX]
• Berinson, B. , Davies, E. , Torpner, J. , Flinkfeldt, L. , Fernberg, J. , Åman, A. , Bergqvist, J. , Öhrn, H. & et al. (2024). A multicenter evaluation of a novel microfluidic rapid AST assay for Gram-negative bloodstream infections.  Journal of Clinical Microbiology, 62 (10). [BibTeX]
• Lind, A. , Cao, Y. , Hesser, H. , Hårdstedt, M. , Jansson, S. P. O. , Lernmark, Å. , Sundqvist, M. , Tevell, S. & et al. (2024). Anxiety, depression and quality of life in relation to SARS-CoV-2 antibodies in individuals living with diabetes during the second wave of COVID-19.  Diabetes epidemiology and management, 13. [BibTeX]
• Germuskova, Z. , Sosa, E. , Campillay Lagos, A. , Aamot, H. V. , Beale, M. A. , Bertelli, C. , Björkmann, J. , Couto, N. & et al. (2024). Conference report: The first Bacterial Genome Sequencing Pan-European Network Conference.  Microbes and infection, 26 (8). [BibTeX]
• Widen, J. , Morén, J. , Mölling, P. , Fagerström, A. , Enblad, P. , Eriksson, B. , Ronne-Engström, E. , Sundqvist, M. & et al. (2024). Diagnosis of external ventricular drainage related infections with real-time 16S PCR and third-generation 16S sequencing.  Infectious Diseases, 56 (7), 521-530. [BibTeX]
• Dyrdak, R. , Hodcroft, E. B. , Broddesson, S. , Grabbe, M. , Franklin, H. , Gisslén, M. , Holm, M. E. , Lindh, M. & et al. (2024). Early unrecognised SARS-CoV-2 introductions shaped the first pandemic wave, Sweden, 2020.  Eurosurveillance, 29 (41). [BibTeX]
• Montgomery, S. , Vingeliene, S. , Li, H. , Backman, H. , Udumyan, R. , Jendeberg, J. , Rasmussen, G. , Sundqvist, M. & et al. (2024). SARS-CoV-2 infection and risk of subsequent demyelinating diseases: national register-based cohort study.  Brain Communications, 6 (6). [BibTeX]
• Pallon, J. , Sundqvist, M. & Hedin, K. (2024). The use and usefulness of point-of-care tests in patients with pharyngotonsillitis - an observational study in primary health care.  BMC Primary Care, 25 (1). [BibTeX]
• Koskela, A. , Lindqvist, C. M. , Asghar, N. , Johansson, M. , Sundqvist, M. , Mölling, P. & Stenmark, B. (2023). Comparison of SARS-CoV-2 whole genome sequencing using tiled amplicon enrichment and bait hybridization.  Scientific Reports, 13 (1). [BibTeX]
• Göransson, J. , Sundqvist, M. , Ghaderi, E. , Lisby, J. G. , Molin, Y. , Eriksson, E. , Carlsson, S. , Cederlöf, A. & et al. (2023). Performance of a System for Rapid Phenotypic Antimicrobial Susceptibility Testing of Gram-Negative Bacteria Directly from Positive Blood Culture Bottles.  Journal of Clinical Microbiology, 61 (3). [BibTeX]
• Säll, O. , Eriksson, L. , Idosa Berhane, A. , Persson, A. , Magnuson, A. , Thulin Hedberg, S. , Sundqvist, M. , Per, O. & et al. (2023). Prevalence and persistence of Neisseria meningitidis carriage in Swedish university students.  Epidemiology and Infection, 151. [BibTeX]
• Haars, J. , Palanisamy, N. , Wallin, F. , Mölling, P. , Lindh, J. , Sundqvist, M. , Ellström, P. , Kaden, R. & et al. (2023). Prevalence of SARS-CoV-2 Omicron Sublineages and Spike Protein Mutations Conferring Resistance against Monoclonal Antibodies in a Swedish Cohort during 2022-2023.  Microorganisms, 11 (10). [BibTeX]
• Åkerlund, A. , Serrander, L. & Sundqvist, M. (2023). Short incubation of disc diffusion for Streptococcus pneumoniae and Haemophilus influenzae to reduce time to susceptibility report.  Journal of Antimicrobial Chemotherapy, 78 (10), 2563-2571. [BibTeX]
• Haglund, S. , Lager, M. , Gyllemark, P. , Andersson, G. , Ekelund, O. , Sundqvist, M. & Henningsson, A. J. (2022). CXCL13 in laboratory diagnosis of Lyme neuroborreliosis-the performance of the recomBead and ReaScan CXCL13 assays in human cerebrospinal fluid samples.  European Journal of Clinical Microbiology and Infectious Diseases, 41 (1), 175-179. [BibTeX]
• Campillay Lagos, A. , Sundqvist, M. , Dyrkell, F. , Stegger, M. , Söderquist, B. & Mölling, P. (2022). Evaluation of within-host evolution of methicillin-resistant Staphylococcus aureus (MRSA) by comparing cgMLST and SNP analysis approaches.  Scientific Reports, 12 (1). [BibTeX]
• Saarentausta, K. , Ivarsson, L. , Jacobsson, S. , Herrmann, B. , Sundqvist, M. & Unemo, M. (2022). Potential impact of the COVID-19 pandemic on the national and regional incidence, epidemiology and diagnostic testing of chlamydia and gonorrhoea in Sweden, 2020.  Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS), 130 (1), 34-42. [BibTeX]
• Ingberg, E. , Ahlstrand, E. , Cajander, P. , Löf, E. , Sundqvist, M. , Wegener, M. , Lidén, M. & Cajander, S. (2022). RT-PCR cycle threshold value in combination with visual scoring of chest computed tomography at hospital admission predicts outcome in COVID-19.  Infectious Diseases, 54 (6), 431-440. [BibTeX]
• Pallon, J. , Sundqvist, M. , Rööst, M. & Hedin, K. (2021). Association between bacterial finding, antibiotic treatment and clinical course in patients with pharyngotonsillitis: a registry-based study in primary healthcare in Sweden.  BMC Infectious Diseases, 21 (1). [BibTeX]
• Säll, O. , Stenmark, B. , Jacobsson, S. , Eriksson, L. , Thulin Hedberg, S. , Hertting, O. , Fredlund, H. , Sundqvist, M. & et al. (2021). Atypical presentation of Neisseria meningitidis serogroup W disease is associated with the introduction of the 2013 strain.  Epidemiology and Infection, 149. [BibTeX]
• Sagerfors, S. , Karakoida, C. , Sundqvist, M. , Lindblad, B. E. & Söderquist, B. (2021). Corneal Culture in Infectious Keratitis: Effect of the Inoculation Method and Media on the Corneal Culture Outcome.  Journal of Clinical Medicine, 10 (9). [BibTeX]
• Nestor, D. , Andersson, H. , Kihlberg, P. , Olson, S. , Ziegler, I. , Rasmussen, G. , Källman, J. , Cajander, S. & et al. (2021). Early prediction of blood stream infection in a prospectively collected cohort.  BMC Infectious Diseases, 21 (1). [BibTeX]
• Vigfússon, H. B. , Ennefors, T. , Kjerstadius, T. & Sundqvist, M. (2021). Evaluation of the eazyplex (R) EHEC complete (Amplex) assay for the differentiation of stx1 and stx2 positivity in stool samples.  Journal of Microbiological Methods, 188. [BibTeX]
• Månsson, E. , Tevell, S. , Nilsdotter-Augustinsson, Å. , Johannesen, T. B. , Sundqvist, M. , Stegger, M. & Söderquist, B. (2021). Methicillin-Resistant Staphylococcus epidermidis Lineages in the Nasal and Skin Microbiota of Patients Planned for Arthroplasty Surgery.  Microorganisms, 9 (2). [BibTeX]
• Pallon, J. , Sundqvist, M. , Rööst, M. , Danielsson, P. , Neumark, T. , Skovbjerg, S. , Svedin, J. & Hedin, K. (2021). Presence of microorganisms in children with pharyngotonsillitis and healthy controls: a prospective study in primary healthcare.  Infection. Zeitschrift für Klinik und Therapie der Infektionen, 49 (4), 715-724. [BibTeX]
• Andersson, M. , Pallon, J. , Cronberg, O. , Sundqvist, M. & Hedin, K. (2021). Seasonal variations in use and outcome of rapid antigen detection tests and cultures in pharyngotonsillitis: a register study in primary care.  BMC Infectious Diseases, 21 (1). [BibTeX]
• Pallon, J. , Rööst, M. , Sundqvist, M. & Hedin, K. (2021). The aetiology of pharyngotonsillitis in primary health care: a prospective observational study.  BMC Infectious Diseases, 21 (1). [BibTeX]
• Liljedahl Prytz, K. , Prag, M. , Fredlund, H. , Magnuson, A. , Sundqvist, M. & Källman, J. (2020). Antibiotic treatment with one single dose of gentamicin at admittance in addition to a beta-lactam antibiotic in the treatment of community-acquired bloodstream infection with sepsis.  PLOS ONE, 15 (7). [BibTeX]
• Åkerlund, A. , Jonasson, E. , Matuschek, E. , Serrander, L. , Sundqvist, M. & Kahlmeter, G. (2020). EUCAST rapid antimicrobial susceptibility testing (RAST) in blood cultures: validation in 55 European laboratories.  Journal of Antimicrobial Chemotherapy, 75 (11), 3230-3238. [BibTeX]
• Strålin, K. , Rothman, R. E. , Özenci, V. , Barkataki, K. , Brealey, D. , Dhiman, N. , Poling, L. , Kurz, M. C. & et al. (2020). Performance of PCR/electrospray ionization-mass spectrometry on whole blood for detection of bloodstream microorganisms in patients with suspected sepsis.  Journal of Clinical Microbiology, 58 (9), e01860-19. [BibTeX]
• Unemo, M. , Hansen, M. , Hadad, R. , Puolakkainen, M. , Westh, H. , Rantakokko-Jalava, K. , Thilesen, C. , Cole, M. J. & et al. (2020). Sensitivity, specificity, inclusivity and exclusivity of the updated Aptima Combo 2 assay, which provides detection coverage of the new diagnostic-escape Chlamydia trachomatis variants.  BMC Infectious Diseases, 20 (1). [BibTeX]
• Werner, A. , Mölling, P. , Fagerström, A. , Dyrkell, F. , Arnellos, D. , Johansson, K. , Sundqvist, M. & Nilsson, T. K. (2020). Whole genome sequencing of Clostridioides difficile PCR ribotype 046 suggests transmission between pigs and humans.  PLOS ONE, 15 (12). [BibTeX]
• Fagerström, A. , Mölling, P. , Khan, F. A. , Sundqvist, M. , Jass, J. & Söderquist, B. (2019). Comparative distribution of extended-spectrum beta-lactamase-producing Escherichia coli from urine infections and environmental waters.  PLOS ONE, 14 (11). [BibTeX]
• Säll, O. , Thulin Hedberg, S. , Neander, M. , Tiwari, S. , Dornon, L. , Bom, R. , Lagerqvist, N. , Sundqvist, M. & et al. (2019). Etiology of Central Nervous System Infections in a Rural Area of Nepal Using Molecular Approaches.  American Journal of Tropical Medicine and Hygiene, 101 (1), 253-259. [BibTeX]
• Nestor, D. , Thulin Hedberg, S. , Lignell, M. , Mölling, P. , Skovbjerg, S. & Sundqvist, M. (2019). Evaluation of the FilmArray™ Meningitis/Encephalitis panel with focus on bacteria and Cryptococcus spp.  Journal of Microbiological Methods, 157, 113-116. [BibTeX]
• Unemo, M. , Hansen, M. , Hadad, R. , Lindroth, Y. , Fredlund, H. , Puolakkainen, M. & Sundqvist, M. (2019). Finnish new variant of Chlamydia trachomatis escaping detection in the Aptima Combo 2 assay also present in Orebro County, Sweden, May 2019.  Eurosurveillance, 24 (26), 10-14. [BibTeX]
• Idelevich, E. A. , Seifert, H. , Sundqvist, M. , Scudeller, L. , Amit, S. , Balode, A. , Bilozor, A. , Drevinek, P. & et al. (2019). Microbiological diagnostics of bloodstream infections in Europe-an ESGBIES survey.  Clinical Microbiology and Infection, 25 (11), 1399-1407. [BibTeX]
• Unemo, M. , Salado-Rasmussen, K. , Hansen, M. , Olsen, A. O. , Falk, M. , Golparian, D. , Aasterød, M. , Ringlander, J. & et al. (2018). Clinical and analytical evaluation of the new Aptima Mycoplasma genitalium assay, with data on M. genitalium prevalence and antimicrobial resistance in M. genitalium in Denmark, Norway and Sweden in 2016.  Clinical Microbiology and Infection, 24 (5), 533-539. [BibTeX]
• Rapp, E. , Samuelsen, Ø. & Sundqvist, M. (2018). Detection of carbapenemases with a newly developed commercial assay using Matrix Assisted Laser Desorption Ionization-Time of Flight.  Journal of Microbiological Methods, 146, 37-39. [BibTeX]
• Nestor, D. , Malmvall, B. , Masonda, Y. P. , Msafiri, J. & Sundqvist, M. (2018). Detection of extended-spectrum beta-lactamase production in Enterobacteriales from patients with suspected urinary tract infections, Tabora region, Rural Tanzania.  Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS), 126 (8), 700-702. [BibTeX]
• Thulin Hedberg, S. , Eriksson, L. , Demontis, M. A. , Mölling, P. , Sundqvist, M. , Taylor, G. , Malm, K. & Andersson, S. (2018). Droplet digital PCR for absolute quantification of proviral load of human T-cell lymphotropic virus (HTLV) types 1 and 2.  Journal of Virological Methods, 260, 70-74. [BibTeX]
• Lamy, B. & Sundqvist, M. (2018). Towards an improved diagnosis of bloodstream infection: promises and hurdles.  Clinical Microbiology and Infection, 24 (9), 933-934. [BibTeX]
• Månsson, E. , Hellmark, B. , Stegger, M. , Andersen, P. S. , Sundqvist, M. & Söderquist, B. (2017). Genomic relatedness of Staphylococcus pettenkoferi isolates of different origins.  Journal of Medical Microbiology, 66 (5), 601-608. [BibTeX]
• Vennberg, L. , Forsstrom, K. , Rova, L. , Ekelund, O. & Sundqvist, M. (2016). Evaluation of a rapid test for the detection of Tick Borne Encephalitis (TBE) IgM in serum and CSF.  Journal of Clinical Virology, 82, S29-S30. [BibTeX]
• Malm, K. , Andersson, S. & Sundqvist, M. (2016). Evaluation of the Veris MDx (TM) system for quantification of Hepatitis B DNA and Hepatitis C and HIV-1 RNA in a medium sized University Hospital.  Journal of Clinical Virology, 82, S27-S27. [BibTeX]
• Thulin, E. , Sundqvist, M. & Andersson, D. I. (2015). Amdinocillin (Mecillinam) Resistance Mutations in Clinical Isolates and Laboratory-Selected Mutants of Escherichia coli.  Antimicrobial Agents and Chemotherapy, 59 (3), 1723-1732. [BibTeX]
• Sundqvist, M. , Olafsson, J. & Matuschek, E. (2015). EUCAST breakpoints can be used to interpret direct susceptibility testing of Enterobacteriaceae from urine samples.  Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS), 123 (2), 152-155. [BibTeX]
• Golparian, D. , Boräng, S. , Sundqvist, M. & Unemo, M. (2015). Evaluation of the New BD Max GC Real-Time PCR Assay, Analytically and Clinically as a Supplementary Test for the BD ProbeTec GC Qx Amplified DNA Assay, for Molecular Detection of Neisseria gonorrhoeae.  Journal of Clinical Microbiology, 53 (12), 3935-3937. [BibTeX]
• Andersson, M. , Resman, F. , Eitrem, R. , Drobni, P. , Riesbeck, K. , Kahlmeter, G. & Sundqvist, M. (2015). Outbreak of a beta-lactam resistant non-typeable Haemophilus influenzae sequence type 14 associated with severe clinical outcomes.  BMC Infectious Diseases, 15. [BibTeX]
• Månsson, E. , Hellmark, B. , Sundqvist, M. & Söderquist, B. (2015). Sequence types of Staphylococcus epidermidis associated with prosthetic joint infections are not present in the laminar airflow during prosthetic joint surgery.  Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS), 123 (7), 589-595. [BibTeX]
• Åkerlund, A. , Sundqvist, M. , Hanberger, H. , Åhrén, C. , Serrander, L. & Giske, C. G. (2015). Svarstiderna kan kortas vid mikrobiologisk diagnostik av sepsis [Response times can be shortened in microbiological diagnosis of sepsis]: Bättre öppettider på laboratorier och aktiv rådgivning ger snabbare terapi [Better opening hours in laboratories and active advice enables faster therapy].  Läkartidningen, 112. [BibTeX]
• Hedin, K. , Bieber, L. , Lindh, M. & Sundqvist, M. (2015). The aetiology of pharyngotonsillitis in adolescents and adults: Fusobacterium necrophorum is commonly found.  Clinical Microbiology and Infection, 21 (3), 263.e1-263.e7. [BibTeX]
• Björk, H. , Bieber, L. , Hedin, K. & Sundqvist, M. (2015). Tonsillar colonisation of Fusobacterium necrophorum in patients subjected to tonsillectomy.  BMC Infectious Diseases, 15. [BibTeX]
• Muhammad, I. , Golparian, D. , Dillon, J. R. , Johansson, Å. , Ohnishi, M. , Sethi, S. , Chen, S. , Nakayama, S. & et al. (2014). Characterisation of blaTEM genes and types of β-lactamase plasmids in Neisseria gonorrhoeae - the prevalent and conserved blaTEM-135 has not recently evolved and existed in the Toronto plasmid from the origin.  BMC Infectious Diseases, 14 (1). [BibTeX]
• Johansson, Å. , Larsen, A. R. , Skov, R. & Sundqvist, M. (2014). Importance of a Diverse Isolate Collection When Defining Genotype-Specific Mass Spectra in Staphylococcus aureus.  Journal of Clinical Microbiology, 52 (7), 2738-2739. [BibTeX]
• Johansson, Å. , Ekelöf, J. , Giske, C. G. & Sundqvist, M. (2014). The detection and verification of carbapenemases using ertapenem and Matrix Assisted Laser Desorption Ionization-Time of Flight.  BMC Microbiology, 14. [BibTeX]
• Rondahl, E. , Gruber, M. , Joelsson, S. , Sundqvist, M. , Akerlind, B. , Cardell, K. , Lindh, M. & Serrander, L. (2014). The risk of HCV RNA contamination in serology screening instruments with a fixed needle for sample transfer.  Journal of Clinical Virology, 60 (2), 172-173. [BibTeX]
• Sundqvist, M. , Granholm, S. , Naseer, U. , Ryden, P. , Brolund, A. , Sundsfjord, A. , Kahlmeter, G. & Johansson, A. (2014). Within-Population Distribution of Trimethoprim Resistance in Escherichia coli before and after a Community-Wide Intervention on Trimethoprim Use.  Antimicrobial Agents and Chemotherapy, 58 (12), 7492-7500. [BibTeX]

Articles, reviews/surveys

• Lamy, B. , Sundqvist, M. & Idelevich, E. A. (2020). Bloodstream infections - Standard and progress in pathogen diagnostics.  Clinical Microbiology and Infection, 26 (2), 142-150. [BibTeX]
• Gaines, H. , Albert, J. , Axelsson, M. , Berglund, T. , Gisslen, M. , Sonnerborg, A. , Blaxhult, A. , Bogdanovic, G. & et al. (2016). Six-week follow-up after HIV-1 exposure: a position statement from the Public Health Agency of Sweden and the Swedish Reference Group for Antiviral Therapy.  INFECTIOUS DISEASES, 48 (2), 93-98. [BibTeX]
• Sundqvist, M. (2014). Reversibility of antibiotic resistance.  Upsala Journal of Medical Sciences, 119 (2), 142-148. [BibTeX]

Conference papers

• Nyberg, F. , Vingeliene, S. , Li, H. , Backman, H. , Udumyan, R. , Jendeberg, J. , Rasmussen, G. , Sundqvist, M. & et al. (2024). SARS-CoV-2 Infection and Risk of Subsequent Demyelinating Diseases - A Nationwide Register-Based Cohort Study in Sweden. In:  Pharmacoepidemiology and Drug Safety. John Wiley & Sons. [BibTeX]
• Koskela, A. , Lindqvist, C. M. , Asghar, N. , Johansson, M. , Sundqvist, M. , Mölling, P. & Stenmark, B. (2023). Comparison of SARS-CoV-2 whole genome sequencing using tiled amplicon enrichment and bait hybridization. Paper presented at Smögen Virology Symposium 2023, Smögen, Sweden, August 24-26, 2023. [BibTeX]
• Andreasson, A. , Hällgren, A. , Georgeoulas, P. , Forsberg, J. , Fridriksson, J. , Granåsen, G. , Lundström, K. , Resare, S. & et al. (2023). Fosfomycin versus Ciprofloxacin as transrectal prostatebiopsy antibiotic prophylaxis an open randomized controlled multicenter drug trial. In:  European Urology. Paper presented at 38th Annual EAU Congress, Milan, Italy, March 10-13, 2023. (pp. S180-S180). Elsevier. [BibTeX]
• Ingberg, E. , Mölling, P. , Jacobsson, S. , Alm, E. , Hedin, K. & Sundqvist, M. (2018). 16S metagenomics for bacterial identification versus cultures in acute pharyngotonsillitis patients and controls. Paper presented at 28th European Congress of Clinical Microbiology and Infectious Diseases, Madrid, Spain, 21-24 April, 2018. [BibTeX]
• Säll, O. , Thulin-Hedberg, S. , Bom, R. , Dornon, L. , Tiwari, S. , Neander, M. , Sundqvist, M. & Mölling, P. (2017). Etiology of CNS infections in Nepal using the FilmArray meningitis/encephalitis panel. In:  International Journal of Antimicrobial Agents. Paper presented at 30th International Congress of Chemotherapy and Infection (ICC), Taipei, Taiwan, November 24-27, 2017. (pp. S66-S66). Elsevier. [BibTeX]
• Thulin Hedberg, S. , Mölling, P. , Stenmark, B. , Unemo, M. , Sundqvist, M. , Lepp, T. , Fredlund, H. & Jacobsson, S. (2017). Invasive meningococcal disease in Sweden 2016. In:  14th Congress of the EMGM, European Meningococcal and Haemophilus Disease Society Book of Abstracts. Paper presented at 14th Congress of the EMGM, European Meningococcal and Haemophilus Disease Society (EMGM 2017), Prague, Czech Republic, September 18-21, 2017. (pp. 69-69). Prague: The European Meningococcal and Haemophilus Disease Society EMGM. [BibTeX]

Manuscripts

• Fagerström, A. , Aspelin, O. , Söderquist, B. , Sundqvist, M. & Mölling, P. Comparative analysis of blaCTX-M-15-IncI1 plasmids in clinical Escherichia coli isolated during a 5-year period in a low-endemic setting. [BibTeX]
• Säll, O. , Eriksson, L. , Asfaw, B. , Persson, A. , Magnusson, A. , Thulin Hedberg, S. , Sundqvist, M. , Olcén, P. & et al. Prevalence and persistence of Neisseria meningitidis carriage in Swedish university students. [BibTeX]