Susceptibility of Klebsiella spp. to the crude extract of Thuja orientalis


  • Ammar Jawad Kadhim Department of Biology, Al-Farabi University College Baghdad, Iraq
  • Dhuha Badr Mahmood Department of Biology, Al-Farabi University College Baghdad, Iraq
  • Sulaiman Dawod Sulaiman Department of Biology, Al-Farabi University College Baghdad, Iraq



Thuja orientalis, Klebsiella, Urinary tract infection (UTI), Antibacterial activity.


The present study was conducted to investigate the antibacterial activity of Thuja orientalis extract against fourteen isolates of Klebsiella from urinary tract infection patients. Antibiotic susceptibility test was done against eight antibiotics to determine the bacterial resistance. The highest bacterial resistance was against Cefixime and Trimethoprim (100%), while the lowest resistance was against Ciprofloxacin, Levofloxacin and Imepenem (28.57%). Finally the effect of Thuja oriantalis plant extract was tested and results showed that, this plant extract has marked inhibitory effect against all Klebsiella isolates.


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