Recent Occurrence and Rapid Spread of Multidrug-Resistant Salmonella Infantis in Broiler Flocks in Korea.

IF 1.9 2区 农林科学 Q3 FOOD SCIENCE & TECHNOLOGY
So-Hee Lee, O-Mi Lee, Sung-Il Kang, Moon Her, Min-Su Kang, Myeongju Chae, Min-Goo Seo
{"title":"Recent Occurrence and Rapid Spread of Multidrug-Resistant <i>Salmonella</i> Infantis in Broiler Flocks in Korea.","authors":"So-Hee Lee, O-Mi Lee, Sung-Il Kang, Moon Her, Min-Su Kang, Myeongju Chae, Min-Goo Seo","doi":"10.1089/fpd.2024.0162","DOIUrl":null,"url":null,"abstract":"<p><p><i>Salmonella</i> Infantis has recently been one of the most prevalent serotypes in poultry and has been identified in human salmonellosis cases worldwide. Multidrug-resistant (MDR) <i>Salmonella</i> Infantis has emerged as a significant threat to both poultry production and public health due to its increasing prevalence and global dissemination. We identified the occurrence of an MDR <i>Salmonella</i> Infantis clone in broiler flocks in Korea, and the clone was characterized to explore potential genetic causes for its high prevalence and rapid spread in broiler production. In total, 220 <i>Salmonella</i> strains isolated between 2020 and 2023 from broiler flocks were serotyped, and 50 strains were identified as <i>Salmonella</i> Infantis (22.7%). The isolates were tested for antimicrobial susceptibility, and their genetic characteristics were analyzed using pulsed-field gel electrophoresis (PFGE), multilocus sequence typing, and whole genome sequencing (WGS). Forty-six strains of <i>Salmonella</i> Infantis isolated since 2020 were resistant to at least five antimicrobial families including ampicillin, cephalosporins, chloramphenicol, nalidixic acid, and tetracycline. The strains showed 10 PFGE patterns and a single multilocus sequence type 32. Eight representative MDR strains were analyzed by WGS. Seven of the eight strains carried the plasmid of emerging <i>Salmonella</i> Infantis-like megaplasmids recognized globally in emergent MDR <i>Salmonella</i> Infantis. They had a high prevalence of seven antimicrobial resistance genes, six of which were identified in plasmids. Also, they all share virulence genes, including fimbrial adherence determinants and secretion system components, and showed a clonal relationship to strains from North America, South America, and West Asia, suggesting potential international dissemination routes. To mitigate the risks associated with the rapid spread of MDR <i>Salmonella</i> Infantis in poultry production and its potential impact on human health, this study provides valuable insights into implementing effective control measures to reduce <i>Salmonella</i> in broiler production in Korea. Further highlighting the critical importance of enhanced biosecurity and continuous surveillance.</p>","PeriodicalId":12333,"journal":{"name":"Foodborne pathogens and disease","volume":" ","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Foodborne pathogens and disease","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1089/fpd.2024.0162","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"FOOD SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

Salmonella Infantis has recently been one of the most prevalent serotypes in poultry and has been identified in human salmonellosis cases worldwide. Multidrug-resistant (MDR) Salmonella Infantis has emerged as a significant threat to both poultry production and public health due to its increasing prevalence and global dissemination. We identified the occurrence of an MDR Salmonella Infantis clone in broiler flocks in Korea, and the clone was characterized to explore potential genetic causes for its high prevalence and rapid spread in broiler production. In total, 220 Salmonella strains isolated between 2020 and 2023 from broiler flocks were serotyped, and 50 strains were identified as Salmonella Infantis (22.7%). The isolates were tested for antimicrobial susceptibility, and their genetic characteristics were analyzed using pulsed-field gel electrophoresis (PFGE), multilocus sequence typing, and whole genome sequencing (WGS). Forty-six strains of Salmonella Infantis isolated since 2020 were resistant to at least five antimicrobial families including ampicillin, cephalosporins, chloramphenicol, nalidixic acid, and tetracycline. The strains showed 10 PFGE patterns and a single multilocus sequence type 32. Eight representative MDR strains were analyzed by WGS. Seven of the eight strains carried the plasmid of emerging Salmonella Infantis-like megaplasmids recognized globally in emergent MDR Salmonella Infantis. They had a high prevalence of seven antimicrobial resistance genes, six of which were identified in plasmids. Also, they all share virulence genes, including fimbrial adherence determinants and secretion system components, and showed a clonal relationship to strains from North America, South America, and West Asia, suggesting potential international dissemination routes. To mitigate the risks associated with the rapid spread of MDR Salmonella Infantis in poultry production and its potential impact on human health, this study provides valuable insights into implementing effective control measures to reduce Salmonella in broiler production in Korea. Further highlighting the critical importance of enhanced biosecurity and continuous surveillance.

耐多药沙门氏菌最近在韩国肉鸡群中出现并迅速蔓延。
婴儿沙门氏菌最近是家禽中最流行的血清型之一,并已在世界各地的人类沙门氏菌病病例中发现。耐多药(MDR)婴儿沙门氏菌由于其日益流行和全球传播,已成为对家禽生产和公共卫生的重大威胁。我们在韩国肉鸡群中发现了一种耐多药沙门氏菌婴儿克隆,并对该克隆进行了特征分析,以探索其在肉鸡生产中高流行率和快速传播的潜在遗传原因。对2020 ~ 2023年从肉鸡群中分离到的220株沙门氏菌进行了血清分型,其中50株为婴儿沙门氏菌(22.7%)。采用脉冲场凝胶电泳(PFGE)、多位点序列分型和全基因组测序(WGS)对分离菌株进行抗菌药物敏感性检测和遗传特征分析。自2020年以来分离的46株婴儿沙门氏菌对氨苄西林、头孢菌素、氯霉素、萘啶酸和四环素等至少5种抗菌药物耐药。菌株有10种PFGE模式,单个多位点序列为32型。WGS对8株代表性耐多药菌株进行分析。8株菌株中有7株携带全球公认的新兴耐多药婴儿沙门氏菌类巨型质粒。它们具有高流行率的7种抗菌素耐药基因,其中6种在质粒中被鉴定出来。此外,它们都具有相同的毒力基因,包括毛缘粘附决定因素和分泌系统成分,并且与来自北美、南美和西亚的菌株表现出克隆关系,这表明可能存在国际传播途径。为了降低耐多药沙门氏菌在家禽生产中快速传播的风险及其对人类健康的潜在影响,本研究为实施有效的控制措施以减少韩国肉鸡生产中的沙门氏菌提供了有价值的见解。进一步强调加强生物安全和持续监测的至关重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Foodborne pathogens and disease
Foodborne pathogens and disease 医学-食品科技
CiteScore
5.30
自引率
3.60%
发文量
80
审稿时长
1 months
期刊介绍: Foodborne Pathogens and Disease is one of the most inclusive scientific publications on the many disciplines that contribute to food safety. Spanning an array of issues from "farm-to-fork," the Journal bridges the gap between science and policy to reduce the burden of foodborne illness worldwide. Foodborne Pathogens and Disease coverage includes: Agroterrorism Safety of organically grown and genetically modified foods Emerging pathogens Emergence of drug resistance Methods and technology for rapid and accurate detection Strategies to destroy or control foodborne pathogens Novel strategies for the prevention and control of plant and animal diseases that impact food safety Biosecurity issues and the implications of new regulatory guidelines Impact of changing lifestyles and consumer demands on food safety.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信