检验医学 ›› 2019, Vol. 34 ›› Issue (2): 140-143.DOI: 10.3969/j.issn.1673-8640.2019.02.010

• 临床应用研究·论著 • 上一篇    下一篇

化脓性感染金黄色葡萄球菌耐药性及分子流行型别分析

周珊, 刘家云, 马越云, 周柯, 周磊, 郝晓柯, 徐修礼()   

  1. 西京医院全军临床检验医学研究所,陕西 西安 710032
  • 收稿日期:2018-01-16 出版日期:2019-02-28 发布日期:2019-02-28
  • 作者简介:null

    作者简介:周 珊,女,1984年生,硕士,主治医师,主要从事细菌耐药机制研究。

  • 基金资助:
    陕西省自然科学基金资助项目(2014JM4188)

Drug resistance and molecular epidemiology of Staphylococcus aureus with suppurative infection

ZHOU Shan, LIU Jiayun, MA Yueyun, ZHOU Ke, ZHOU Lei, HAO Xiaoke, XU Xiuli()   

  1. Institute of Clinical Laboratory Medicine of People's Liberation Army,Xijing Hospital,Xi'an 710032,Shaanxi,China
  • Received:2018-01-16 Online:2019-02-28 Published:2019-02-28

摘要:

目的 分析2017年上半年西京医院化脓性感染金黄色葡萄球菌的耐药性及分子流行型别,为临床合理用药提供依据。方法 收集2017年1—6月分离自化脓性感染患者脓性分泌物样本的金黄色葡萄球菌,采用Vitek 2 Compact全自动微生物鉴定系统进行菌株鉴定及药物敏感性试验,采用多位点序列分型(MLST)联合spa分型方法进行分子流行病学分型。结果 共分离金黄色葡萄球菌171株,其中社区感染113株,医院感染58株。医院感染耐甲氧西林金黄色葡萄球菌(MRSA)分离率(62.07%)明显高于社区感染(30.97%)。分子分型结果显示,医院感染和社区感染MRSA分别以ST239-t030和ST239-t037为主。结论 2017年上半年西京医院化脓性感染金黄葡萄球菌医院感染和社区感染在多个方面存在明显差异。MRSA克隆型别相对比较集中,医院感染存在院内播散现象。应加强医院感染控制力度,降低医院感染发生率。

关键词: 化脓性感染, 金黄色葡萄球菌, 耐甲氧西林金黄色葡萄球菌, 多位点序列分型, spa分型, 耐药性

Abstract:

Objective To analyze the drug resistance and molecular epidemiology of Staphylococcus aureus with suppurative infection in the first half of 2017,and to provide a reference for the rational use of antibiotics. Methods The clinical isolates of Staphylococcus aureus with suppurative infection were collected from January to June,2017. Identification and drug susceptibility test were performed by Vitek 2 Compact automatic microbial identification system. The molecular epidemiology of Staphylococcus aureus was analyzed by spa typing and multilocus sequence typing(MLST). Results A total of 171 isolates ofStaphylococcus aureus were isolated. There were 113 isolates from community infection and 58 isolates from nosocomial infection. The methicillin-resistant Staphylococcus aureus(MRSA) isolation rate in nosocomial infection group was 62.07%,which was higher than that in community infection group(30.97%). The results of molecular typing showed that the main types in nosocomial and community infection groups were ST239-t030 and ST239-t037,respectively. Conclusions At Xijing Hospital in the first half of 2017,there are differences for Staphylococcus aureus between nosocomial and community infection groups. MRSA clones are relatively concentrated,and nosocomial infection group has spread phenomenon. The control of nosocomial infection should be strengthened,in order to reduce the incidence of nosocomial infection.

Key words: Suppurative infection, Staphylococcus aureus, Methicillin-resistant Staphylococcus aureus, Multilocus sequence typing, Spa typing, Drug resistance

中图分类号: