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April 4, 2026Microbiology ResearchOpen Access

Whole-Genome Analysis Revealed Antimicrobial Resistance and Virulence-Associated Genome Features in Environmental Salmonella enterica Isolates from Creek Sediments in the Mid-Atlantic United States

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Authors

SOSookyung OhAgricultural Research ServiceBHBradd J. HaleyAgricultural Research ServiceJPJitendra PatelAgricultural Research Service

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Overview

Whole-genome analysis reveals antimicrobial resistance features in Salmonella isolates from environmental sediments, highlighting implications for water quality.

Key Points

  • To characterize the genomic profiles and diversity of Salmonella enterica isolates from creek sediments.
  • Whole-genome sequencing of Salmonella isolates
  • Characterization of serotypes and genomic profiles
  • Identification of antimicrobial resistance genes and plasmid types
  • Analysis of pathogenicity islands and genetic elements
  • Eight distinct serotypes of Salmonella identified, with Newport being the most prevalent at 43.8%
  • Presence of aac(6’)-Iaa gene in all isolates and parC (T57S) mutation in 14 isolates
  • Over 60% of isolates had distinct plasmid replicon types
  • IncF and IncI2 plasmids linked to β-lactamase genes were found
  • Evidence of genomic plasticity through RM systems and CRISPR/Cas loci analysis

Cite This Study

Oh et al. (2026) studied this question.

synapsesocial.com/papers/69d0aefd659487ece0fa4d7dhttps://doi.org/10.3390/microbiolres17040072
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  1. 1Phenotypic and Metabolic Diversity of Salmonella Isolates from Agricultural Creek Sediment2026
  2. 2Whole-Genome Sequencing Analysis of Antimicrobial Resistance, Virulence Factors, and Genetic Diversity of <em>Salmonella </em>Isolated from Wenzhou, China2024
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  4. 4Genetic Diversity and Antibiotic Resistance Profiling of <i>Salmonella</i> Isolates from Diarrhea Patients in Chifeng, China2025
  5. 5A one health genomic analysis reveals shared Salmonella Newport lineages across human, animal, and environmental reservoirs2026