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首页> 外文期刊>LWT-Food Science & Technology >Prevalence, antibiotic susceptibility and genetic diversity of Campylobacter jejuni isolated from retail food in China
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Prevalence, antibiotic susceptibility and genetic diversity of Campylobacter jejuni isolated from retail food in China

机译：中国零售食品隔离的Campylobacter Jejuni的患病率，抗生素敏感性和遗传多样性

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摘要

Campylobacter jejuni is a common and important zoonotic pathogen that can cause bacterial gastroenteritis and other diseases, even leading to Guillain-Barre Syndrome or death. It is therefore necessary to investigate the prevalence and pathogenic risk of C. jejuni. Here, we investigated the prevalence of C. jejuni isolated from retail food in China from 2015 to 2016 and analyzed the distribution of virulence genes, antibiotic susceptibility, and genetic diversity of different isolates. Eighteen out of 1588 samples, collected from 15 main cities of China, were contaminated by C. jejuni, with more than 70% of the strains possessing 14 virulence-genes. Antimicrobial susceptibility testing suggested that all strains were resistant to vancomycin (100%) and cefoperazone (100%), and highly resistant to quinolones (>96%). In contrast, they showed sensitivity to erythromycin. Nevertheless, all the isolated strains were multi-drug resistant. Regarding genetic polymorphism, 20 sequence types (STs) were found by multilocus sequence typing (MLST), ten of which were new STs. Moreover, 40% of the strains could form biofilms, of which 23.33% strains were strong biofilm-forming. In conclusion, our study provides the prevalence and characteristics of C. jejuni isolated from retail food in China, revealing the potential pathogenic risk of C. jejuni in contaminated food.
机译：空肠弯曲菌是一种常见且重要的人畜共患病病原体，可引起细菌性胃肠炎等疾病，甚至导致格林-巴利综合征或死亡。因此，有必要调查空肠弯曲菌的患病率和致病风险。在这里，我们调查了2015年至2016年中国零售食品中分离的空肠弯曲菌的流行情况，并分析了不同菌株的毒力基因分布、抗生素敏感性和遗传多样性。从中国15个主要城市采集的1588份样本中，有18份被空肠弯曲菌污染，其中70%以上的菌株拥有14个毒力基因。药敏试验表明，所有菌株均对万古霉素（100%）和头孢哌酮（100%）耐药，对喹诺酮类药物高度耐药（>96%）。相比之下，他们对红霉素表现出敏感性。然而，所有分离菌株均具有多药耐药性。关于遗传多态性，多位点序列分型（MLST）发现了20个序列类型（ST），其中10个是新的ST。此外，40%的菌株能形成生物膜，其中23.33%的菌株具有较强的生物膜形成能力。总之，我们的研究提供了中国零售食品中分离的空肠弯曲菌的流行情况和特征，揭示了污染食品中空肠弯曲菌的潜在致病风险。

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  • 来源
    《LWT-Food Science & Technology》 |2021年第1期|共10页
  • 作者

    Wang Juan; Wang Zhi; Zhang Jumei; Ding Yu; Ma Zonghao; Jiang Fufeng; Nie Xiang; Tang Shengjun; Chen Moutong; Wu Shi; Zeng Haiyan; Lei Tao; Yang Xiaojuan; Zhang Shuhong; Wu Qingping;

  • 作者单位

    South China Agr Univ Coll Food Sci Guangzhou Peoples R China;

    Guangdong Acad Sci Inst Microbiol Guangdong Prov Key Lab Microbial Safety &

    Hlth State Key Lab Appl Microbiol Southern China Xianlie Zhong Rd 100 58th Bldg Guangzhou 510070 Peoples R China;

    Guangdong Acad Sci Inst Microbiol Guangdong Prov Key Lab Microbial Safety &

    Hlth State Key Lab Appl Microbiol Southern China Xianlie Zhong Rd 100 58th Bldg Guangzhou 510070 Peoples R China;

    Jinan Univ Inst Food Safety &

    Nutr Dept Food Sci &

    Technol Guangzhou Peoples R China;

    Guangdong Acad Sci Inst Microbiol Guangdong Prov Key Lab Microbial Safety &

    Hlth State Key Lab Appl Microbiol Southern China Xianlie Zhong Rd 100 58th Bldg Guangzhou 510070 Peoples R China;

    Guangdong Acad Sci Inst Microbiol Guangdong Prov Key Lab Microbial Safety &

    Hlth State Key Lab Appl Microbiol Southern China Xianlie Zhong Rd 100 58th Bldg Guangzhou 510070 Peoples R China;

    South China Agr Univ Coll Food Sci Guangzhou Peoples R China;

    South China Agr Univ Coll Food Sci Guangzhou Peoples R China;

    Guangdong Acad Sci Inst Microbiol Guangdong Prov Key Lab Microbial Safety &

    Hlth State Key Lab Appl Microbiol Southern China Xianlie Zhong Rd 100 58th Bldg Guangzhou 510070 Peoples R China;

    Guangdong Acad Sci Inst Microbiol Guangdong Prov Key Lab Microbial Safety &

    Hlth State Key Lab Appl Microbiol Southern China Xianlie Zhong Rd 100 58th Bldg Guangzhou 510070 Peoples R China;

    Guangdong Acad Sci Inst Microbiol Guangdong Prov Key Lab Microbial Safety &

    Hlth State Key Lab Appl Microbiol Southern China Xianlie Zhong Rd 100 58th Bldg Guangzhou 510070 Peoples R China;

    Guangdong Acad Sci Inst Microbiol Guangdong Prov Key Lab Microbial Safety &

    Hlth State Key Lab Appl Microbiol Southern China Xianlie Zhong Rd 100 58th Bldg Guangzhou 510070 Peoples R China;

    Guangdong Acad Sci Inst Microbiol Guangdong Prov Key Lab Microbial Safety &

    Hlth State Key Lab Appl Microbiol Southern China Xianlie Zhong Rd 100 58th Bldg Guangzhou 510070 Peoples R China;

    Guangdong Acad Sci Inst Microbiol Guangdong Prov Key Lab Microbial Safety &

    Hlth State Key Lab Appl Microbiol Southern China Xianlie Zhong Rd 100 58th Bldg Guangzhou 510070 Peoples R China;

    Guangdong Acad Sci Inst Microbiol Guangdong Prov Key Lab Microbial Safety &

    Hlth State Key Lab Appl Microbiol Southern China Xianlie Zhong Rd 100 58th Bldg Guangzhou 510070 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 食品工业;
  • 关键词

    Campylobacter jejuni; Retail food; Prevalence; Genetic diversity; Multi-drug resistance;

    机译：空肠弯曲菌;零售食品;流行遗传多样性;多药耐药性;

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