老年病区大肠埃希菌分离株消毒剂-磺胺耐药基因携带的研究

Disinfectant-sulfadiazine Resistance genes in Escherichia coli Isolated from Elderly Wards

目的了解老年病区大肠埃希菌分离株消毒剂-磺胺耐药基因的存在和耐药性。方法应用聚合酶链反应技术与稀释法对大肠埃希菌分离株消毒剂-磺胺耐药基因和药敏进行了检测。结果该医院老年病区患者标本中分离的30株大肠埃希菌检测出携带消毒剂-磺胺耐药基因21株,检出率70.0%。结论该医院老年病区分离的大肠埃希菌临床株消毒剂-磺胺耐药基因检出率较高,多数对临床常用抗菌药物耐药,提出临床抗药菌株可能同时对消毒剂存在抗性,应引起我国医院消毒界的广泛重视。

OBJECTIVE To investigate the genes of disinfectant-sulfadiazine and antibiotic resistance of Escherichia coli strains in elderly wards.METHODS Polymerase chain reaction and dilution test were used to detect and analyze the disinfectant-sulfadizane drug resistance gene and drug resistance of the E.coli.RESULTS From 30 E.coli strains isolated from elderly patients,21 were detected carrying disinfectant-sulfadizine drug resistance genes,and the positive rate of qacE△1-sulⅠ was 70.0%.CONCLUSIONS The detection rate of disinfectant-sulfadiazine drug resistance gene from E.coli strains isolated from elderly patients,the bacteria detection rates are relatively high.Most of the isolates were resistant to commonly used antibiotics.It suggests that clinical drug-resistant strains may be resistant to disinfectants.This condition should be paid much attention by disinfection wotkers of our country.