One Health transmission of plasmid-mediated antimicrobial resistance: genomic insights at the interface of food, animals, humans and the environment.

Authors

Daniel F M Monte, Siddhartha Thakur

Published in

JAC-antimicrobial resistance. Volume 8. Issue 4. Pages dlag130. Epub Jul 04, 2026.

Abstract

Antimicrobial resistance (AMR) is increasingly recognized as a complex issue that requires an interdisciplinary One Health approach to find solutions. While early surveillance efforts have emphasized clonal expansion of resistant pathogens, recent genomic studies demonstrate that plasmid-mediated horizontal gene transfer is a dominant force shaping the global AMR landscape. Mobile resistance determinants conferring reduced susceptibility to critically important antimicrobials, including extended-spectrum β-lactams, quinolones, colistin, tigecycline and carbapenems, are now widely detected across food-producing animals, retail foods, environmental waters and human clinical isolates. In this review, we synthesize genomic evidence supporting cross-sector transmission of plasmid-mediated AMR, with a focus on key resistance genes (bla _CTX-M, qnr, mcr, tet(X), bla _NDM), and their associated plasmid backbones. We discuss why certain plasmids are particularly successful across diverse ecological niches and highlight implications for surveillance and mitigation strategies within a One Health framework. Rather than proposing a new One Health framework, this review synthesizes current genomic evidence highlighting the role of plasmids as major vehicles of AMR dissemination across interconnected reservoirs.

PMID:
42405344
Bibliographic data and abstract were imported from PubMed on 06 Jul 2026.

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