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Thirty five bacterial isolates were collected from urine and blood samples of 20 patients, before and after endoscopy examination, in new Surgical Hospitals , Zagazig University Hospital, Zagazig, Egypt. Antibiotic susceptibility profile of purified bacteria revealed four multi-resistant strains identified as S. aureus Zag11 , P. aeruginosa Zag60, E. coli Zag126 and S. epidermidis Zag128. The four selected bacteria were subjected to some disinfectants (glutaraldehyde, hydrogen peroxide, P3-oxonia and Orthophthaladehyde) at different concentrations and different exposure times. It was...

Among 121 isolates, four strains showed the multiresistance against vancomycin, imipenem, ciprofloxacin and oxycillin antibiotics were selected and identified molecularly using 16S rDNA gene sequence as Staphylococcus aureus strains. The determined minimum inhibitory concentrations (MICs) of the tested antibiotics indicated the difference in antibiotic resistance among the four tested S. aureus strains. Of nine tested essential oils, thyme and tea tree oils were the most potent for all tested S. aureus strains. Synergetic effects were obtained in combination treatment between vancomycin with...