Investigation of GSBL frequency in Escherichia coli and Klebsiella pneumoniae strains isolated from individuals affected by the major earthquake


Bayraktar H. S. (Yürütücü)

Diğer Resmi Kurumlarca Desteklenen Proje, 2024 - 2025

  • Proje Türü: Diğer Resmi Kurumlarca Desteklenen Proje
  • Başlama Tarihi: Ekim 2024
  • Bitiş Tarihi: Şubat 2025

Proje Özeti

Introduction: Extended-Spectrum β-Lactamase (ESBL)-producing Escherichia coli (E. coli) and Klebsiella pneumoniae (K. pneumoniae) are threatening pathogens which are more resistant to antibiotics in healthcare settings all around the world. The spread of these pathogens may be triggered by natural disasters such as earthquake and flood.

Material and method: A total of 3129 subjects were included in this study and evaluated retrospectively between January 2023 and July 2024 just before and after a major earthquake. VITEK 2 compact automatized system was used to identify the strains and ESBL production and antibiotic resistance of isolates were determined by conventional methods.

Results: Nine hundred and fifty two E. coli and 355 K. pneumoniae strains were isolated from 3129 clinical samples. The 478 E. coli (50.21%) and 102 K. pneumoniae strains (28.73%) were found to be ESBL positive. ESBL-producing E. coli strains were mostly resistant to cefuroxime (97.48%), ceftriaxone (84.51%) and 97.05% resistance rate was determined in ESBL positive K. pneumoniae strains against ceftriaxone. ESBL-producing K. pneumoniae strains were completely resistant to cefuroxime.

Conclusion: Although ESBL positivity was high in E. coli strains, but not significantly different when compared with literature, it was found to be relatively moderate in K. pneumoniae strains. It can be said that despite the major earthquake disaster, these findings are promising. For sustainability of infection control, approaches should be taken to improve the environmental sanitation/hygiene precautions and antibiotic treatment protocols in both environment and each healthcare facilities even in negative situation.