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Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) ›› 2018, Vol. 12 ›› Issue (01): 89-93. doi: 10.3877/cma.j.issn.1674-1358.2018.01.018

Special Issue:

• Clinical Research Article • Previous Articles     Next Articles

Clinical distribution and changes of drug resistance of 1 245 strains of Staphylococcus aureus

Junjie Xie1, Hengbiao Sun1,(), Zuhan Pan1, Xu You1, Yuhua Ye1   

  1. 1. Department of Clinical Laboratory, the Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China
  • Received:2017-01-02 Online:2018-02-15 Published:2018-02-15
  • Contact: Hengbiao Sun
  • About author:
    Corresponding author: Sun Hengbiao, Email:

Abstract:

Objective

To investigate the infections distribution and changes of drug resistance ofStaphylococcus aureus, and provide reasonable using of antibiotics as to control infection in hospital.

Methods

The drug resistance data ofStaphylococcus aureus isolated from inpatients and outpatients from January 2012 to December 2015 were collected. The data was analyzed by WHONET 5.6 software.

Results

Total of 1 245 strains ofStaphylococcus aureuswere isolated, among which, 657 strains of methicillin-resistantStaphylococcus aureus(MRSA) were detected at a rate with 52.8%. Among all strains, 565 strains (45.4%) were isolated from sputum, 234 strains (18.8%) from wound secretion, 136 strains (10.9%) from pus, 89 strains (7.1%) from blood; and sputum had the highest detection rate of MRSA.Staphylococcus aureuswere mainly isolated from neurosurgery (197 strains, 15.8%), ICU (172 strains, 13.8%), orthopedic trauma (161 strains, 12.9%), and department of respiratory (132 strains, 10.6%); the highest detection rate of MRSA was from neurosurgery.Staphylococcus aureus was sensitive to rifampin, trimethoprim-sulfamethoxazole, daptomycin, linezolid and vancomycin, quinupristin/dalfopristin, while showed high resistance to penicillin antibiotic. MRSA maintained high sensitivity to daptomycin, linezolid, vancomycin and quinupristin/dalfopristin. The resistance rate of MRSA was higher than that of methicillin-sensitiveStaphylococcus aureus(MSSA).

Conclusions

The detection rate of MRSA was high in hospital and the resistance rate of MRSA to common antibiotics were serious. Clinical departments should make reasonable using of antibiotics and strengthen hospital infection control to decrease the incidence of MRSA infection.

Key words: Staphylococcus aureus, Methicillin-resistantStaphylococcus aureus, Drug resistance, Antibiotics

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