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June 13, 2026Frontiers in Veterinary ScienceOpen Access

Molecular and phenotypic characterization of SG9R-like Salmonella Gallinarum field isolates from South Korea, 2019–2025

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Authors

VLVan Dam LaiHNHoang Minh NguyenHBHyunwoo Baek

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Overview

Randomized trial characterizes fowl typhoid strains in poultry, suggesting new diagnostic methods are needed.

Key Points

  • The aim is to analyze mutations and phenotypic traits of SG9R-like Salmonella Gallinarum isolates from poultry.
  • Analyzed molecular markers like aceE and rfaJ in strains isolated from 2019 to 2025.
  • Conducted multiplex PCR assays to differentiate SG9R and SG strains.
  • Assessed the phenotypic characteristics of these isolates.
  • Identified mutations in aceE and rfaJ genes in SG9R-like isolates.
  • Noted that these isolates exhibit phenotypic traits similar to SG strains.
  • Suggested the need for a new diagnostic approach to distinguish these strains.

Cite This Study

Lai et al. (2026) studied this question.

synapsesocial.com/papers/6a2cf2a9faef96ed7f0557d1https://doi.org/10.3389/fvets.2026.1850190
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  1. 1Deletion of pagL and arnT genes that involved in LPS structure and charge modulation in Salmonella genome confer reduced endotoxicity and retained efficient protection against wild-type S. Gallinarium challenge in chicken2024
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