Barbara Juliane Holzknecht

Barbara Juliane Holzknecht

Postgraduate Clinical Associate Professor, Clinical Associate Professor

Member of:

  • Clinical Microbiology


  1. 2024
  2. E-pub ahead of print

    Carriage of methicillin-resistant Staphylococcus aureus in children: a retrospective follow-up study of the natural course and effectiveness of decolonization treatment

    Helbo, T., Boel, J. B., Bartels, Mette Damkjær, Ahlström, M. G., Holzknecht, Barbara Juliane & Eriksen, H. B., 2024, (E-pub ahead of print) In: The Journal of antimicrobial chemotherapy.

    Research output: Contribution to journalJournal articlepeer-review

  3. Published

    Comparison of morbidity and mortality after bloodstream infection with vancomycin-resistant versus -susceptible Enterococcus faecium: a nationwide cohort study in Denmark, 2010–2019

    Bager, P., Kähler, J., Andersson, M., Holzknecht, Barbara Juliane, Kjær Hansen, S. G., Schønning, Kristian, Nielsen, K. L., Koch, K., Pinholt, M., Voldstedlund, M., Larsen, A. R., Kristensen, B., Mølbak, Kåre, Sönksen, U. W., Skovgaard, S., Skov, R. & Hammerum, A. M., 2024, In: Emerging Microbes and Infections. 13, 1, 13 p., 2309969.

    Research output: Contribution to journalJournal articlepeer-review

  4. Published

    Long-term carriage and evolution of VREfmLong-term carriage and evolution of vancomycin-resistant Enterococcus faecium: A genomic study on consecutive isolates

    Knudsen, M. J. S., Samaniego Castruita, J. A., Mollerup, S., Holzknecht, Barbara Juliane, Hoppe, M., Westh, Henrik T., Pinholt, M. & Rubin, I. M. C., 2024, In: JAC-Antimicrobial Resistance. 6, 1, 4 p., dlad153.

    Research output: Contribution to journalJournal articlepeer-review

  5. Published

    Sociodemographic characterisation of antibiotic heavy users in the Danish elderly population

    Jensen, Maria Louise Veimer, Aabenhus, Rune Munck, Holzknecht, Barbara Juliane, Bjerrum, Lars, Siersma, Volkert Dirk, Cordoba Currea, Gloria Cristina & Jensen, J. N., 2024, In: Scandinavian Journal of Public Health. 52, 1, p. 51-58 8 p.

    Research output: Contribution to journalJournal articlepeer-review

  6. 2023
  7. Published

    Characterisation of Carbapenemase-producing Acinetobacter baumannii Isolates from Danish Patients 2014–2021: Detection of a New International Clone – IC11

    Hansen, F., Porsbo, L. J., Frandsen, T. H., Kaygisiz, A. N. S., Roer, L., Henius, A. E., Holzknecht, Barbara Juliane, Søes, L., Schønning, Kristian, Røder, B. L., Justesen, U. S., Østergaard, C., Dzajic, E., Wang, M., Ank, N., Higgins, P. G., Hasman, H. & Hammerum, A. M., 2023, In: International Journal of Antimicrobial Agents. 62, 2, 6 p., 106866.

    Research output: Contribution to journalJournal articlepeer-review

  8. Published

    Contaminated dicloxacillin capsules as the source of an NDM-5/OXA-48-producing Enterobacter hormaechei ST79 outbreak, Denmark and Iceland, 2022 and 2023

    Agergaard, C. N., Porsbo, L. J., Sydenham, T. V., Hansen, S. G. K., Steinke, K., Larsen, S. L., Helgason, K. O., Hansen, F., Karstensen, K. T., Henius, A. E., Holzknecht, B. J., Søes, L., Schønning, K., Wang, M., Ank, N., Halldórsdóttir, A. M., Guðlaugsson, Ó., Hammerum, A. M., Kjerulf, A., Kristensen, B. & 2 others, Hasman, H. & Justesen, U. S., 2023, In: Eurosurveillance. 28, 9, p. 1-4 2300108.

    Research output: Contribution to journalJournal articlepeer-review

  9. Published

    Diarrhoea-causing microorganisms are rare in adult patients undergoing diagnostic laparoscopy for suspected appendicitis: a prospective observational cohort study

    Fonnes, S., Rasmussen, T., Holzknecht, Barbara Juliane, Olesen, C. S., Olsen, J. H. H., Schmidt, L., Alder, R., Sørensen, S. G., Gülen, S., Klarskov, Louise Laurberg, Krogfelt, K. A., Westh, Henrik T. & Rosenberg, Jacob, 2023, In: APMIS. 131, 6, p. 284-293 10 p.

    Research output: Contribution to journalJournal articlepeer-review

  10. Published

    Existing Data Sources in Clinical Epidemiology: Database of Community Acquired Infections Requiring Hospital Referral in Eastern Denmark (DCAIED) 2018–2021

    Holler, J. G., Jensen , Jens-Ulrik Stæhr , Engsig, F. N., Bestle, Morten Heiberg, Lindegaard, Birgitte, Rasmussen, J. H., Bundgård, Henning, Nielsen, F. E., Iversen, Kasper, Larsen, J. J., Holzknecht, Barbara Juliane, Boel, J., Sivapalan, P. & Itenov, Theis Skovsgaard, 2023, In: Clinical Epidemiology. 15, p. 939-955 17 p.

    Research output: Contribution to journalReviewpeer-review

  11. Published

    Genotypic characterisation of carbapenemase-producing organisms obtained in Denmark from patients associated with the war in Ukraine

    Stolberg, R. S., Hansen, F., Porsbo, L. J., Karstensen, K. T., Roer, L., Holzknecht, Barbara Juliane, Hansen, Katrine Hartung, Schønning, Kristian, Wang, M., Justesen, U. S., Røder, B. L., Thomsen, P., Skov, M. N., Hammerum, A. M. & Hasman, H., 2023, In: Journal of Global Antimicrobial Resistance. 34, p. 15-17 3 p.

    Research output: Contribution to journalComment/debatepeer-review

  12. Published

    Parenteral Fosfomycin in Gastrointestinal Surgery: A Systematic Review

    Fonnes, S., Fonnes, M. K., Holzknecht, Barbara Juliane & Rosenberg, Jacob, 2023, In: Drug Research. 74, 1, p. 24-31 8 p.

    Research output: Contribution to journalReviewpeer-review

  13. Published

    Risk factors for methicillin-resistant Staphylococcus aureus colonization in a level-IV neonatal intensive care unit: a retrospective study

    Galuszka, J. E., Thomsen, K., Knudsen, J. D., Stenkjaer, R. L., Nielsen, R., Nielsen, K. L., Petersen, A., Holzknecht, Barbara Juliane, Bartels, Mette Damkjær, Breindahl, M. & Aunsholt, Lise, 2023, In: Antimicrobial Stewardship and Healthcare Epidemiology. 3, 1, 10 p., e194.

    Research output: Contribution to journalJournal articlepeer-review

  14. 2022
  15. Published

    A randomized, placebo-controlled, double-blinded trial of MRSA throat carriage treatment, with either standard decolonization alone or in combination with oral clindamycin.

    Holm, M. K. A., Meiniche, H. K., Pedersen, M., Eriksen, H. B., Westh, Henrik T., Holzknecht, Barbara Juliane & Bartels, Mette Damkjær, 16 Jun 2022, In: Trials. 23, 8 p., 502 .

    Research output: Contribution to journalJournal articlepeer-review

  16. Published

    Mesenteric Lymphadenitis and Terminal Ileitis is Associated With Yersinia Infection: A Meta-analysis

    Fonnes, S., Rasmussen, T., Brunchmann, A., Holzknecht, Barbara Juliane & Rosenberg, Jacob, 2022, In: Journal of Surgical Research. 270, p. 12-21 10 p.

    Research output: Contribution to journalJournal articlepeer-review

  17. Published

    Possible misinterpretation of penicillin susceptibility in Staphylococcus aureus blood isolate due to in vitro loss of the blaZ gene

    Eriksen, H. B., Petersen, A., Pedersen, M., Overballe-Petersen, S., Larsen, A. R. & Holzknecht, Barbara Juliane, 2022, In: European Journal of Clinical Microbiology and Infectious Diseases. 41, 1, p. 163-167 5 p.

    Research output: Contribution to journalJournal articlepeer-review

  18. Published
  19. 2021
  20. Published

    A hospital outbreak of an NDM-producing ST167 Escherichia coli with a possible link to a toilet

    Andrews, V., Hasman, H., Midttun, M., Feldthaus, M. B., Porsbo, L. J., Holzknecht, Barbara Juliane, Scheutz, F., Hess, C. E. & Olesen, B., 2021, In: Journal of Hospital Infection. 117, p. 186-187 2 p.

    Research output: Contribution to journalComment/debatepeer-review

  21. Published

    Antibiotic prescribing in Danish general practice in the elderly population from 2010 to 2017

    Jensen, Maria Louise Veimer, Aabenhus, Rune Munck, Holzknecht, Barbara Juliane, Bjerrum, Lars, Jensen, J. N., Siersma, Volkert Dirk & Cordoba Currea, Gloria Cristina, 2021, In: Scandinavian Journal of Primary Health Care. 39, 4, p. 498-505 8 p.

    Research output: Contribution to journalJournal articlepeer-review

  22. Published

    Intravenous mecillinam compared with other β-lactams as targeted treatment for Escherichia coli or Klebsiella spp. bacteraemia with urinary tract focus

    Boel, J. B., Antsupova, V., Knudsen, J. D., Jarløv, J. O., Arpi, M. & Holzknecht, Barbara Juliane, 2021, In: The Journal of antimicrobial chemotherapy. 76, 1, p. 206-211 6 p.

    Research output: Contribution to journalJournal articlepeer-review

  23. Published

    Investigation of the introduction and dissemination of vanB Enterococcus faecium in the Capital Region of Denmark and development of a rapid and accurate clone-specific vanB E. faecium PCR

    Pinholt, M., Mollerup, S., Boye, K., Worning, P., Holzknecht, Barbara Juliane, Nygaard, S., Nielsen, K. L., Hasman, H., Roer, L., Hammerum, A. M., Westh, Henrik T. & Schønning, Kristian, 2021, In: Journal of Antimicrobial Chemotherapy. 76, 9, p. 2260-2267 8 p.

    Research output: Contribution to journalJournal articlepeer-review

  24. Published

    Repeated introduction and spread of the MRSA clone t304/ST6 in northern Europe

    Bartels, Mette Damkjær, Worning, P., Andersen, Leif Percival, Bes, M., Enger, H., Ås, C. G., Hansen, T. A., Holzknecht, Barbara Juliane, Larssen, K. W., Laurent, F., Mäkitalo, B., Pichon, B., Svartström, O. & Westh, Henrik T., 2021, In: Clinical Microbiology and Infection. 27, 2, p. 284.e1-284.e5

    Research output: Contribution to journalJournal articlepeer-review

  25. Published

    Screening patients at admission to Copenhagen hospitals for carriage of resistant bacteria after contact with healthcare systems abroad, 2016–2019

    Westerholt, M., Hasman, H., Hansen, D. S., Roer, L., Hansen, T. A., Petersen, A. & Holzknecht, Barbara Juliane, 2021, In: International Journal of Antimicrobial Agents. 58, 6, 106452.

    Research output: Contribution to journalJournal articlepeer-review

  26. 2020
  27. Published

    Commercial bacterial and fungal broad-range PCR (Micro-Dx™) used on culture-negative specimens from normally sterile sites: diagnostic value and implications for antimicrobial treatment

    Marbjerg, L. H., Holzknecht, Barbara Juliane, Dargis, R., Dessau, R. B., Nielsen, X. C. & Christensen, J. J., 2020, In: Diagnostic Microbiology and Infectious Disease. 97, 2, 5 p., 115028.

    Research output: Contribution to journalJournal articlepeer-review

  28. Published

    Investigation of possible clonal transmission of carbapenemase-producing Klebsiella pneumoniae complex member isolates in Denmark using core genome MLST and National Patient Registry Data

    Hammerum, A. M., Lauridsen, C. A. S., Blem, S. L., Roer, L., Hansen, F., Henius, A. E., Holzknecht, Barbara Juliane, Søes, L., Andersen, L. P., Røder, B. L., Justesen, U. S., Østergaard, C., Søndergaard, T., Dzajic, E., Wang, M., Fulgsang-Damgaard, D., Møller, K. L., Porsbo, L. J. & Hasman, H., 2020, In: International Journal of Antimicrobial Agents. 55, 5, 7 p., 105931.

    Research output: Contribution to journalJournal articlepeer-review

  29. Published

    Shorter Total Length of Stay After Intraperitoneal Fosfomycin, Metronidazole, and Molgramostim for Complicated Appendicitis: A Pivotal Quasi-Randomized Controlled Trial

    Fonnes, S., Roepstorff, S., Holzknecht, Barbara Juliane, Olesen, C. S., Olsen, J. H. H., Schmidt, L., Alder, R., Gamborg, S., Rasmussen, T., Arpi, M., Jørgensen, Lars Nannestad & Rosenberg, Jacob, 2020, In: Frontiers in Surgery. 7, 25.

    Research output: Contribution to journalJournal articlepeer-review

  30. Published

    Surveillance of OXA-244-producing Escherichia coli and epidemiologic investigation of cases, Denmark, January 2016 to August 2019

    Hammerum, A. M., Porsbo, L. J., Hansen, F., Roer, L., Kaya, H., Henius, A., Møller, K. L., Justesen, U. S., Søes, L., Røder, B. L., Thomsen, P. K., Wang, M., Søndergaard, T. S., Holzknecht, Barbara Juliane, Østergaard, C., Kjerulf, A., Kristensen, B. & Hasman, H., 2020, In: Eurosurveillance. 25, 18, p. 1-9 9 p.

    Research output: Contribution to journalJournal articlepeer-review

  31. Published

    The plasma pharmacokinetics of fosfomycin and metronidazole after intraperitoneal administration in patients undergoing appendectomy for uncomplicated appendicitis

    Fonnes, S., Weisser, J. J., Holzknecht, Barbara Juliane, Arpi, M. & Rosenberg, Jacob, 2020, In: Fundamental and Clinical Pharmacology. 34, 4, p. 504-512 9 p.

    Research output: Contribution to journalJournal articlepeer-review

  32. 2019
  33. Published

    Infection with multiple carbapenemase-producing bacteria following cosmetic surgery in Iran detected after the introduction of systematic screening of repatriates

    Andrews, V., Hansen, F., Hammerum, A. M., Hasman, H., Roer, L., Hansen, D. S., Olesen, B., Krogstrup, N. V., Dohrn, N. & Holzknecht, Barbara Juliane, Mar 2019, In: Journal of Global Antimicrobial Resistance. 16, p. 144-146

    Research output: Contribution to journalLetterpeer-review

  34. Published

    LRE-Finder, a Web tool for detection of the 23S rRNA mutations and the optrA, cfr, cfr(B) and poxtA genes encoding linezolid resistance in enterococci from whole-genome sequences

    Hasman, H., Clausen, P. T. L. C., Kaya, H., Hansen, F., Knudsen, J. D., Wang, M., Holzknecht, Barbara Juliane, Samulioniené, J., Røder, B. L., Frimodt-Møller, N., Lund, O. & Hammerum, A. M., 2019, In: Journal of Antimicrobial Chemotherapy. 74, 6, p. 1473-1476

    Research output: Contribution to journalJournal articlepeer-review

  35. 2018
  36. Published

    Dissemination and characteristics of a novel plasmid-encoded carbapenem-hydrolyzing class D β-lactamase, OXA-436, found in isolates from four patients at six different hospitals in Denmark

    Samuelsen, Ø., Hansen, F., Aasnæs, B., Hasman, H., Lund, B. A., Leiros, H. K. S., Lilje, B., Janice, J., Jakobsen, L., Littauer, P., Søes, L. M., Holzknecht, Barbara Juliane, Andersen, Leif Percival, Stegger, M., Andersen, P. S. & Hammerum, A. M., Jan 2018, In: Antimicrobial Agents and Chemotherapy. 62, 1, 13 p., e01260-17.

    Research output: Contribution to journalJournal articlepeer-review

  37. Published

    The Combination of Fosfomycin, Metronidazole, and Recombinant Human Granulocyte-Macrophage Colony-Stimulating Factor is Stable in vitro and Has Maintained Antibacterial Activity

    Fonnes, S., Holzknecht, Barbara Juliane, Gasbjerg, Lærke Smidt, Weisser, J. J., Hallberg, H. W., Arpi, M. & Rosenberg, Jacob, 2018, In: Drug Research. 68, 6, p. 349-354

    Research output: Contribution to journalJournal articlepeer-review

  38. Published

    Typing of vancomycin-resistant enterococci with MALDI-TOF mass spectrometry in a nosocomial outbreak setting

    Holzknecht, Barbara Juliane, Dargis, R., Pedersen, M., Pinholt, M., Christensen, J. J., Hammerum, A. M., Littauer, P., Worning, P., Westh, Henrik T., Moser, C., Justesen, U. S., Lemming, L. E., Søndergaard, T. S., Dzajic, E., Ejlertsen, T. & the Danish Enterococcal Study Group, T. D. E. S. G., 2018, In: Clinical Microbiology and Infection. 24, 10, p. 1104.e1-1104.e4

    Research output: Contribution to journalJournal articlepeer-review

ID: 196982946