Retrospective Analysis of Staphylococcus argenteus Isolated from Food-Related Specimens in Nagoya.

IF 1.1 4区 医学 Q4 INFECTIOUS DISEASES
Takashi Ichikawa, Yohei Kobayashi, Katsuaki Masuno, Shinichiro Shibata
{"title":"Retrospective Analysis of Staphylococcus argenteus Isolated from Food-Related Specimens in Nagoya.","authors":"Takashi Ichikawa, Yohei Kobayashi, Katsuaki Masuno, Shinichiro Shibata","doi":"10.7883/yoken.JJID.2025.130","DOIUrl":null,"url":null,"abstract":"<p><p>Staphylococcus argenteus, a novel species formally named in 2015 and distinct from S. aureus, has a historical distribution that remains unclear. In this study, a total of 1,021 staphylococcal isolates collected from food-related specimens in Nagoya City between 1986 and 2022 were re-examined. Of these, 65 isolates (6.4%) were reidentified as S. argenteus. The earliest detection was in 1986, and the species has been identified in nearly every subsequent year. These findings suggest that S. argenteus had already disseminated into food-related environments by the 1980s. Furthermore, the results indicate that most S. argenteus isolates have been correctly identified in recent years, due to improvements in current MALDI-TOF MS identification. Multilocus sequence typing (MLST) revealed ST2854 as the most prevalent sequence type (ST) in this study, while clinically important strains such as ST1223 and ST2250 have been detected since the 1990s. The presence of novel and multiple STs with distinct POT types indicating that genetically diverse S. argenteus strains have been present in food-related environments since the 1980s. These results provide important insight into the historical background of S. argenteus and underscore the need for continued monitoring, particularly in food-related environments.</p>","PeriodicalId":14608,"journal":{"name":"Japanese journal of infectious diseases","volume":" ","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Japanese journal of infectious diseases","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.7883/yoken.JJID.2025.130","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"INFECTIOUS DISEASES","Score":null,"Total":0}
引用次数: 0

Abstract

Staphylococcus argenteus, a novel species formally named in 2015 and distinct from S. aureus, has a historical distribution that remains unclear. In this study, a total of 1,021 staphylococcal isolates collected from food-related specimens in Nagoya City between 1986 and 2022 were re-examined. Of these, 65 isolates (6.4%) were reidentified as S. argenteus. The earliest detection was in 1986, and the species has been identified in nearly every subsequent year. These findings suggest that S. argenteus had already disseminated into food-related environments by the 1980s. Furthermore, the results indicate that most S. argenteus isolates have been correctly identified in recent years, due to improvements in current MALDI-TOF MS identification. Multilocus sequence typing (MLST) revealed ST2854 as the most prevalent sequence type (ST) in this study, while clinically important strains such as ST1223 and ST2250 have been detected since the 1990s. The presence of novel and multiple STs with distinct POT types indicating that genetically diverse S. argenteus strains have been present in food-related environments since the 1980s. These results provide important insight into the historical background of S. argenteus and underscore the need for continued monitoring, particularly in food-related environments.

名古屋市食品相关标本中分离的银葡萄球菌回顾性分析。
阿根廷葡萄球菌是2015年正式命名的一种新物种,与金黄色葡萄球菌不同,其历史分布尚不清楚。本研究对1986年至2022年间从名古屋市食品相关标本中采集的1021株葡萄球菌分离株进行了重新检测。其中65株(6.4%)被鉴定为阿根廷葡萄球菌。最早的发现是在1986年,此后几乎每年都能发现该物种。这些发现表明,阿根廷葡萄球菌早在20世纪80年代就已经传播到与食物有关的环境中。此外,结果表明,由于目前的MALDI-TOF MS鉴定方法的改进,近年来大多数阿根廷葡萄球菌分离株已被正确鉴定。多位点序列分型(Multilocus sequence typing, MLST)显示ST2854是本研究中最常见的序列型(sequence type, ST),而临床上重要的菌株如ST1223和ST2250自20世纪90年代以来也被检测到。具有不同POT类型的新型和多重STs的存在表明,自20世纪80年代以来,在与食物相关的环境中已经存在遗传多样性的阿根廷葡萄球菌菌株。这些结果为了解阿根廷葡萄球菌的历史背景提供了重要的见解,并强调了继续监测的必要性,特别是在与食物有关的环境中。
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
CiteScore
4.50
自引率
4.50%
发文量
172
审稿时长
2 months
期刊介绍: Japanese Journal of Infectious Diseases (JJID), an official bimonthly publication of National Institute of Infectious Diseases, Japan, publishes papers dealing with basic research on infectious diseases relevant to humans in the fields of bacteriology, virology, mycology, parasitology, medical entomology, vaccinology, and toxinology. Pathology, immunology, biochemistry, and blood safety related to microbial pathogens are among the fields covered. Sections include: original papers, short communications, epidemiological reports, methods, laboratory and epidemiology communications, letters to the editor, and reviews.
×
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:604180095
Book学术官方微信