Myroides odoratimimus : a New Threat with Persistent Infections, Multidrug Resistance, and the Potential for Hospital Outbreaks

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  • Aygar Ismail Selcuk
    Medical Microbiology Laboratory, Gülhane Training and Research Hospital, University of Health Sciences, TÜRKİYE
  • Aydogan Canset Nur
    Department of Medical Microbiology, Gülhane Faculty of Medicine, University of Health Sciences, TÜRKİYE
  • Ozcan Hande
    Department of Medical Microbiology, Gülhane Faculty of Medicine, University of Health Sciences, TÜRKİYE
  • Unat Irem
    Department of Medical Microbiology, Gülhane Faculty of Medicine, University of Health Sciences, TÜRKİYE
  • Fatsa Tugba
    Molecular Laboratory, Gülhane Health Institute, University of Health Sciences, TÜRKİYE
  • Tekin Kemal
    Medical Microbiology Laboratory, Gülhane Training and Research Hospital, University of Health Sciences, TÜRKİYE
  • Yalci Aysun
    Department of Infectious Diseases and Clinical Microbiology, Gülhane Faculty of Medicine, University of Health Sciences, TÜRKİYE
  • Hosbul Tugrul
    Department of Medical Microbiology, Gülhane Faculty of Medicine, University of Health Sciences, TÜRKİYE
  • Sahiner Fatih
    Department of Medical Microbiology, Gülhane Faculty of Medicine, University of Health Sciences, TÜRKİYE
  • Gumral Ramazan
    Department of Medical Microbiology, Gülhane Faculty of Medicine, University of Health Sciences, TÜRKİYE

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  • <i>Myroides odoratimimus</i>: a New Threat with Persistent Infections, Multidrug Resistance, and the Potential for Hospital Outbreaks

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<p>Myroides species have recently been reported more frequently in outbreaks in clinics and intensive care units (ICUs). In this study, we aimed to investigate the epidemic potential, antibiotic resistance profile, and risk factors of M. odoratimimus isolates that are increasingly being isolated from the ICUs of our hospital. Data from patients whose Myroides spp. were isolated from their clinical specimens over a 5-year period (September 2016 to January 2022) were retrospectively analyzed. Bacterial identification was performed using a matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS). The presence of antibiotic resistance genes was analyzed using polymerase chain reaction (PCR). Possible clonal associations between isolates were investigated using enterobacterial repetitive intergenic consensus (ERIC)-PCR. As a result, 66 isolates were identified as M. odoratimimus and one isolate was identified as M. odoratus. The blaMUS resistance gene was detected in all M. odoratimimus isolates, whereas sul2 was detected in ten isolates and tetX was detected in 11 isolates. No other resistance genes, such as blaTUS, were detected. Additionally, two different clonal association patterns were discovered in the 24 selected isolates through the ERIC-PCR method. The increase in the immunosuppressive patient population indicate the possibility of encountering this agent and other opportunistic pathogens more frequently in the future.</p>

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