数字农科院2.0

Genomic and phylogeographical analysis revealed CTX-M-55 producing Escherichia coli ST10 and ST2325 clones of One Health concern from dairy farm waste in Gansu, China

文献类型： 外文期刊

作者： Muhammad Shoaib;Muhammad Muddassir Ali;Minjia Tang;Wang Weiwei;Xuejing Zhang;Zhuolin He;Zhongyong Wu;Shengyi Wang;Baocheng Hao;Ruichao Li;Wanxia Pu

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关键词： ESBL-producing E. coli;Genomic surveillance;Mobilome;One Health clones;Resistome;Virulome

期刊名称： One Health

ISSN： 2352-7714

年卷期： 2025 年 20 卷

页码：

收录情况： SCIE（2025版）

摘要： Extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli resists broad-spectrum cephalosporins, considered as a critical priority pathogen, and its presence in animals, humans, and the environment highlights its significance as a One Health issue. Dairy farm waste is a potential environmental contaminant and can serves as a significant reservoir for the emergence and spread of ESBL-producing E. coli, which belongs to One Health clones and poses a serious global threat. This study aimed to investigate the occurrence and genomic characteristics of ESBL-producing E. coli clones of One Health concern from dairy farm waste in Gansu, China. In this study, we isolated and characterized two CTX-M-55 ESBL-producing E. coli strains, ZYX8158 and ZYS8091, which belong to One Health clones. The genomic analysis revealed a large resistome, mobilome, virulome, and plasmidome was acquired by both ESBL-producing E. coli strains. The genome-based typing revealed that E. coli ZYX8158 and ZYS8091 belonged to globally disseminated clones ST10 (O73:H31 serotype) and ST2325 (O66:H25 serotype), respectively. Phylogeographical analysis revealed both strains as potential One Health clones due to their clustering with related E. coli strains isolated from animal, human, and environmental sources, regardless of geographical boundaries, indicating their zoonotic potential and clonal spread in the One Health sector. This study highlights that dairy farm waste can be a potential source of the emergence and dissemination of One Health clones of critical priority ESBL-producing E. coli in One Health settings, which demands continuous and integrated genomic surveillance for comprehensive knowledge and mitigation strategies.

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