Popis: |
To determine the impact of long-term use of antibiotics and ultraviolet radiation on the resistance ofThree strains of tigecycline sensitiveTigecycline resistant strains were successfully induced using multi-step method. Ultraviolet radiation did not change the sensitivity of the three strains to tigecycline, but elevated the MICs of tigecycline. The MICs of tigecycline did not change over 40 generations. It took much more time for the resistant strains to reach logarithmic growth phase and plateau phase compared with the tigecycline sensitive strains. With repeated passage, the tigecycline resistant strains decreased rapidly, even vanished in conjointly culture. |