Escherichia coli Isolated from Bovine Sources Encoding the Fosfomycin Resistance Gene fosA7.5.

IF 1.9 2区农林科学 Q3 FOOD SCIENCE & TECHNOLOGY

Foodborne pathogens and disease Pub Date : 2025-03-01 Epub Date: 2024-03-27 DOI:10.1089/fpd.2023.0132

Bradd J Haley, Seon Woo Kim, Jo Ann Van Kessel

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引用次数: 0

Abstract

Dairy animals are reservoirs of antimicrobial-resistant Escherichia coli that are frequently resistant to tetracycline, aminoglycoside, β-lactam, sulfonamide, and macrolide-lincosamide-streptogramin B antibiotics. However, resistance to other classes of antimicrobials is less frequently observed, and resistance to fosfomycin is rarely observed in E. coli. In this study, we describe the genomic characteristics of E. coli encoding fosA7.5 that have been recovered from bovine sources in the United States. Most isolates only encoded the fosA7.5 gene, whereas 37% encoded at least one other resistance gene, and 25% were genotypically multidrug-resistant. Most (112 isolates, 93%) belonged to phylogenetic group B1 and were assigned to 19 sequence types (STs), the most frequently identified being ST1727, ST2307, and ST3234. Results of this study indicate that fosA-encoding E. coli from bovine sources is very rare in the United States with isolates demonstrating a high level of similarity across a broad geographic region.

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从牛源分离出的大肠杆菌编码磷霉素抗性基因 fosA7.5。

奶牛是耐抗菌素大肠杆菌的贮藏地，这些大肠杆菌经常对四环素、氨基糖苷、β-内酰胺、磺胺和大环内酯-林可霉素-链霉素 B 类抗生素产生耐药性。然而，对其他类抗菌素的耐药性较少出现，在大肠杆菌中也很少观察到对磷霉素的耐药性。在本研究中，我们描述了从美国牛源中发现的编码 fosA7.5 的大肠杆菌的基因组特征。大多数分离菌只编码 fosA7.5 基因，而 37% 的分离菌至少编码一种其他耐药基因，25% 的分离菌在基因型上具有多重耐药性。大多数（112 个分离株，93%）属于系统发育组 B1，并被归入 19 个序列类型（ST），其中最常见的是 ST1727、ST2307 和 ST3234。该研究结果表明，来自牛源的 fosA 编码大肠杆菌在美国非常罕见，其分离物在广泛的地理区域内显示出高度的相似性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Foodborne pathogens and disease 医学-食品科技

CiteScore

5.30

自引率

3.60%

发文量

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.