2017—2021年泉州市食品污染风险监测中副溶血性弧菌耐药性及分子分型研究
作者:
作者单位:

1.福建医科大学附属泉州市疾病预防控制中心,福建 泉州 362000;2.泉州医学高等专科学校, 福建 泉州 362000

作者简介:

吴小凤 女 主管技师 研究方向为病原菌检测 E-mail:wuxiaofeng1221@163.com

通讯作者:

郑友限 男 副主任技师 研究方向为食源性疾病监测 E-mail:870300059@qq.com

中图分类号:

R155

基金项目:

泉州市科技计划项目课题(2020N067S);福建省中青年教师教育科研项目(JAT201241)


Drug resistance characteristics and molecular typing of Vibrio parahaemolyticus isolated from food contamination risk monitoring in Quanzhou City from 2017 to 2021
Author:
Affiliation:

1.Quanzhou Center for Disease Control and Prevention, Fujian Quanzhou 362000, China;2.Quanzhou Medical College, Fujian Quanzhou 362000, China

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    摘要:

    目的 了解2017—2021年泉州地区食品污染风险监测中副溶血性弧菌的耐药情况以及菌株之间的同源性关系。方法 对各县区送检的食品样本进行副溶血性弧菌的增菌培养和分离鉴定,荧光定量PCR法进行毒力基因(tdh、trhtlh)检测,微量肉汤稀释法进行药敏试验,脉冲场凝胶电泳(PFGE)技术进行分子分型,利用BioNumerics 6.6软件进行聚类分析。结果 210份食品样本共检出副溶血性弧菌65份,总检出率为30.95%;毒力基因检测中tlh基因100%检出,tdhtrh均未检出;药敏试验显示65株副溶血性弧菌对8种抗生素表现出不同程度的耐药,其中耐药最强的是多黏菌素E(27.70%,18/65),而对美罗培南、环丙沙星、头孢他啶/阿维巴坦、替加环素、阿奇霉素、萘啶酸、链霉素、复方新诺明和阿米卡星9种抗生素不具有耐药性。65菌株通过PFGE图谱聚类分析显示63种型别,菌株之间相似度为34.67%~100.0%。结论 泉州地区食品中存在一定程度的副溶血性弧菌污染,所分离出的副溶血性弧菌对多种抗生素具有较高敏感性,菌株分布呈多态性,相互之间关系比较分散,亲缘关系较远。

    Abstract:

    Objective This study aimed to investigate the molecular types and antimicrobial resistance of Vibrio parahaemolyticus isolated from food contamination risk monitoring in Quanzhou City from 2017 to 2021.Methods Vibrio parahaemolyticus was isolated and identified in food samples from various counties. The virulence genes (tdhtrh, and tlh) were detected by fluorescence quantitative PCR and the micro broth dilution method was used for drug-resistance analysis. The molecular typing was analyzed using the pulsed-field gel electrophoresis (PFGE) method. Bionumeries 6.6 software was used to analyze the similarity between strains.Results A total of 65 Vibrio parahaemolyticus strains were isolated from 210 specimens. The drug susceptibility results showed that 65 strains of Vibrio parahaemolyticus showed eight kinds of drug resistance spectra. The resistance rate to polymyxin E was the highest(27.70%,18/65). All the strains were not resistant to meropenem, ciprofloxacin, ceftazidime/avibactam, tigecycline, azithromycin, nalidixic acid, streptomycin, cotrimoxazole, and amikacin. The 65 strains were divided into 63 PFGE patterns. The similarity between each pattern was 34.67%~100%.Conclusion Vibrio parahaemolyticus exists in food in Quanzhou City. The isolated Vibrio parahaemolyticus have high sensitivity to a variety of antibiotics, the distribution of the strains is polymorphic, and the relationships between them were scattered and distant.

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吴小凤,庄春红,陈韵妍,郑友限.2017—2021年泉州市食品污染风险监测中副溶血性弧菌耐药性及分子分型研究[J].中国食品卫生杂志,2023,35(9):1328-1332.

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  • 收稿日期:2022-08-08
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  • 在线发布日期: 2024-01-12
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