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Updated: Feb 10, 2026

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Genomic Characterization of Multidrug-Resistant Myroides Odoratimimus from Pneumonic Piglets: A One Health Threat

Binod Kumar Choudhary1, Mamta Choudhary2, Gyan Prakash Rai3

  • 1Indian Council of Agricultural Research-National Institute of Biotic Stress Management, Baronda, Raipur, 493 225, Chhattisgarh, India. binods14@gmail.com.

Current Microbiology
|February 9, 2026
PubMed

Insights

Myroides odoratimimus causes piglet pneumonia and is multidrug-resistant. Its genomic analysis reveals zoonotic potential, emphasizing One Health surveillance for emerging pathogens.

Area of Science:

  • Veterinary Microbiology
  • Genomics
  • Antimicrobial Resistance

Background:

  • Myroides odoratimimus is an emerging opportunistic pathogen.
  • Previously identified causing pneumonia in post-weaning piglets, expanding its host range.
  • Co-infection with Porcine Circovirus types 2 and 3 (PCV2, PCV3) was noted in affected swine.

Purpose of the Study:

  • To perform genomic characterization of a multidrug-resistant M. odoratimimus strain from a piglet pneumonia outbreak.
  • To investigate antimicrobial resistance determinants and virulence factors.
  • To assess the zoonotic potential of the M. odoratimimus strain.

Main Methods:

  • Whole-genome sequencing of the M. odoratimimus pgdne strain.
  • Identification of antimicrobial resistance genes (e.g., blaMUS-1) and virulence factors.
  • Phylogenetic analysis using a distance method with 1,000 bootstrap replicates.

Main Results:

  • The M. odoratimimus strain possessed multiple antimicrobial resistance determinants, including blaMUS-1.
  • Several virulence-associated factors were identified, correlating with genotype and phenotype.
  • Phylogenetic analysis indicated close relatedness to human isolates, suggesting zoonotic potential.

Conclusions:

  • M. odoratimimus exhibits pathogenic capacity in immunocompromised animal hosts.
  • The multidrug-resistant strain highlights public health relevance.
  • Integrated One Health surveillance is crucial for controlling emerging multidrug-resistant pathogens.

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