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Occurrence and Antibiotic Resistance Risk Burden of Vibrio mimicus Isolates from Seafood and Aquatic Environments

Temitope C Ekundayo1, Frederick T Tabit1

  • 1Department of Life and Consumer Sciences, University of South Africa, Private Bag X6, Florida, Roodepoort 1710, South Africa.

Antibiotics (Basel, Switzerland)
|November 27, 2025
PubMed
Abstract

Insights

Antimicrobial resistance in Vibrio mimicus (Vm) from seafood and water poses a significant threat, with high resistance rates observed globally. Stricter regulations and improved surveillance are crucial to mitigate these risks.

Area of Science:

  • Microbiology
  • Food Safety
  • Public Health

Background:

  • Emerging antimicrobial resistance in Vibrio mimicus (Vm) from seafood presents a growing public health concern.
  • Increased Vm infections may be exacerbated in vulnerable patient populations due to resistance.
  • Understanding resistance patterns is critical for effective intervention strategies.

Purpose of the Study:

  • To investigate the prevalence and burden of antibiotic resistance in Vibrio mimicus (Vm) from seafood and aquatic environments.
  • To identify geographical hotspots and risk factors associated with Vm antimicrobial resistance.
  • To provide data for informed public health and regulatory actions.

Main Methods:

  • Utilized hierarchical mixed-effects modeling to analyze Vm resistance data.
  • Employed the Antimicrobial Resistance Risk Index (ARRI) to quantify resistance burdens.
  • Collected and analyzed Vm isolates from seafood and aquatic environments.

Main Results:

  • High resistance rates in Vm were observed for amoxicillin (83.7%), colistin sulphate (80.2%), and streptomycin (54.6%).
  • Significant resistance was noted for penicillins, macrolides, nalidixic acid, and doxycycline.
  • Antibiotic resistance burdens in seafood and water (ARRI ≈ 50 and 46) greatly exceeded those in human isolates (ARRI ≈ 0.01), with Asia and Africa identified as hotspots.

Conclusions:

  • Vibrio mimicus exhibits diverse antimicrobial resistance patterns, with high concern for penicillins, cephalosporins, macrolides, and polymyxins.
  • Stricter regulations on antibiotic use in aquaculture and improved wastewater treatment are recommended.
  • One-health surveillance and stakeholder education are essential to mitigate the impact of Vm-resistant infections.
Keywords:
Vibrio mimicusantibiotic resistanceone-healthpublic healthriversseafoodsshrimpswastewater

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