A Comparison study to determine glycopeptide resistance in Staphylococcus aureus isolates collected from Shohada Hospital during three years
Author(s):
Abstract:
Background and Objectives
Glycopeptides such as vancomycin and ticoplanin are commonly used as antibiotic of choice for treatment of infections caused by methicillin-resistant Staphylococcus aureus. Following first reports of vancomycin resistant strains, the presence and distribution of these bacteria have been continuously investigated in the clinic centers. This study was aimed to investigate the distribution of glycopeptide resistant S. aureus isolated from Shohada hospital during a period of three years. Materials and Methods
This cross-sectional study was carried out on 182 S. aureus strains isolated from wound orthopedic patients in three years. Resistance against glycopeptides, linezolid and ciprofloxacin were examined by disk agar diffusion method. Screening plate method containing 6µg / ml of vancomycin was used for resistance against vancomycin. Results
Among the 182 isolates, only 2 cases (1.09%) were confirmed as vancomycin-resistant S. aureus, VISA strains. In isolates from the last year of sampling, the resistance was controlled. Among total isolates, in 31 isolates (17%) demonstrated intermediate reaction against ticoplanin. Conclusion
Significant differences are indicated between glycopeptide resistances isolated from different years, despite a report of two VISA isolates in our center, which showed that the resistance controlled by the authorities.Keywords:
Language:
Persian
Published:
Journal of Microbial World, Volume:8 Issue: 2, 2015
Pages:
112 to 119
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