E-ISSN 2218-6050 | ISSN 2226-4485
 
2025, Vol: 15, Issue: 11
15 / 11Current Issue ArchiveAims and ScopeAbstracting & IndexingMost Accessed ArticlesMost Downloaded ArticlesMost Cited Articles
Required files to be uploaded

OVJ Manuscript Submissio Form
mainarticle_template

Research Article


Prevalence and antimicrobial susceptibility of Escherichia coli and Klebsiella spp. Isolated from retail seafood in Hanoi, Vietnam

Thi Thu Tra Vu, Chong Por Lao Bounngeun, Thi Thu Ha Hoang, Huy Hoang Tran, Thanh Trung Nguyen.


Abstract
Background:
Although seafood is a major source of high-quality nutrients, it may also harbor pathogenic and antimicrobial-resistant bacteria, posing risks to food safety and public health. Escherichia coli and Klebsiella spp. are important pathogens associated with seafood contamination and antimicrobial resistance.

Aim:
To determine the prevalence, antimicrobial susceptibility, and resistance patterns of Escherichia coli and Klebsiella spp. isolated from seafood sold in markets in Hanoi, Vietnam.

Methods:
A total of 120 seafood samples (squid, fish, shrimp, and oyster) were collected from retail markets in Hanoi and immediately transported to the laboratory for analysis. MALDI-TOF mass spectrometry and biochemical tests were used to isolate and identify E. coli and Klebsiella spp. The antimicrobial susceptibility of bacterial isolates was assessed using the disc diffusion method.

Results:
The prevalence of E. coli and Klebsiella spp. in seafood was 35/120 (29.2%) and 24/120 (20.0%), respectively, with oysters showing significantly higher contamination rates than squid, fish, and shrimp. Among the 35 E. coli isolates, the highest resistance was observed against ceftazidime (71.4%), followed by cefotaxime (57.2%), sulfamethoxazole/trimethoprim (45.7%), ampicillin (37.2%), and tetracycline (37.2%). In contrast, 24 Klebsiella spp. isolates showed the highest resistance rates to sulfamethoxazole/trimethoprim (95.8%), ampicillin (91.7%), and ceftazidime (50.0%). Multidrug resistance was observed in 9 E. coli and 3 Klebsiella spp. isolates.

Conclusion:
The high prevalence and antimicrobial resistance rates of E. coli and Klebsiella spp. isolated from seafood sold in the study area highlight the need for improved surveillance, stricter control of antimicrobial use in aquaculture, and enhanced food safety measures.

Key words: Antimicrobial resistance; E. coli; Klebsiella spp.; Prevalence; Seafood; Hanoi


 
ARTICLE TOOLS
Abstract
PDF Fulltext
How to cite this articleHow to cite this article
Citation Tools
Related Records
 Articles by Thi Thu Tra Vu
Articles by Chong Por Lao Bounngeun
Articles by Thi Thu Ha Hoang
Articles by Huy Hoang Tran
Articles by Thanh Trung Nguyen
on Google
on Google Scholar


How to Cite this Article
Pubmed Style

Vu TTT, Bounngeun CPL, Hoang TTH, Tran HH, Nguyen TT. Prevalence and antimicrobial susceptibility of Escherichia coli and Klebsiella spp. Isolated from retail seafood in Hanoi, Vietnam. Open Vet. J.. 2025; 15(11): 5574-5582. doi:10.5455/OVJ.2025.v15.i11.14

Web Style

Vu TTT, Bounngeun CPL, Hoang TTH, Tran HH, Nguyen TT. Prevalence and antimicrobial susceptibility of Escherichia coli and Klebsiella spp. Isolated from retail seafood in Hanoi, Vietnam. https://www.openveterinaryjournal.com/?mno=281052 [Access: December 18, 2025]. doi:10.5455/OVJ.2025.v15.i11.14

AMA (American Medical Association) Style

Vu TTT, Bounngeun CPL, Hoang TTH, Tran HH, Nguyen TT. Prevalence and antimicrobial susceptibility of Escherichia coli and Klebsiella spp. Isolated from retail seafood in Hanoi, Vietnam. Open Vet. J.. 2025; 15(11): 5574-5582. doi:10.5455/OVJ.2025.v15.i11.14


Vancouver/ICMJE Style

Vu TTT, Bounngeun CPL, Hoang TTH, Tran HH, Nguyen TT. Prevalence and antimicrobial susceptibility of Escherichia coli and Klebsiella spp. Isolated from retail seafood in Hanoi, Vietnam. Open Vet. J.. (2025), [cited December 18, 2025]; 15(11): 5574-5582. doi:10.5455/OVJ.2025.v15.i11.14


Harvard Style

Vu, T. T. T., Bounngeun, . C. P. L., Hoang, . T. T. H., Tran, . H. H. & Nguyen, . T. T. (2025) Prevalence and antimicrobial susceptibility of Escherichia coli and Klebsiella spp. Isolated from retail seafood in Hanoi, Vietnam. Open Vet. J., 15 (11), 5574-5582. doi:10.5455/OVJ.2025.v15.i11.14


Turabian Style

Vu, Thi Thu Tra, Chong Por Lao Bounngeun, Thi Thu Ha Hoang, Huy Hoang Tran, and Thanh Trung Nguyen. 2025. Prevalence and antimicrobial susceptibility of Escherichia coli and Klebsiella spp. Isolated from retail seafood in Hanoi, Vietnam. Open Veterinary Journal, 15 (11), 5574-5582. doi:10.5455/OVJ.2025.v15.i11.14


Chicago Style

Vu, Thi Thu Tra, Chong Por Lao Bounngeun, Thi Thu Ha Hoang, Huy Hoang Tran, and Thanh Trung Nguyen. "Prevalence and antimicrobial susceptibility of Escherichia coli and Klebsiella spp. Isolated from retail seafood in Hanoi, Vietnam." Open Veterinary Journal 15 (2025), 5574-5582. doi:10.5455/OVJ.2025.v15.i11.14


MLA (The Modern Language Association) Style

Vu, Thi Thu Tra, Chong Por Lao Bounngeun, Thi Thu Ha Hoang, Huy Hoang Tran, and Thanh Trung Nguyen. "Prevalence and antimicrobial susceptibility of Escherichia coli and Klebsiella spp. Isolated from retail seafood in Hanoi, Vietnam." Open Veterinary Journal 15.11 (2025), 5574-5582. Print. doi:10.5455/OVJ.2025.v15.i11.14


APA (American Psychological Association) Style

Vu, T. T. T., Bounngeun, . C. P. L., Hoang, . T. T. H., Tran, . H. H. & Nguyen, . T. T. (2025) Prevalence and antimicrobial susceptibility of Escherichia coli and Klebsiella spp. Isolated from retail seafood in Hanoi, Vietnam. Open Veterinary Journal, 15 (11), 5574-5582. doi:10.5455/OVJ.2025.v15.i11.14


Author LoginReviewer LoginAbout PublisherPublication Ethics and Publication Malpractice StatementConflict of Interest PolicyPlagiarism PolicyTerms of UseLicense InformationCopyright Information

About Open Veterinary Journal

Open Veterinary Journal provides a fast track coupled with high quality peer review process for original research articles, review articles, short communi ... Read more.



For best results, please use Internet Explorer or Google Chrome.

Contact Information

All correspondence should be addressed to:

Prof. Ibrahim Eldaghayes: Owner, Founder and Editor-in-Chief

Open Veterinary Journal


Faculty of Veterinary Medicine, University of Tripoli

P.O. Box 13662, Tripoli, Libya

and


Eldaghayes Publisher

www.eldaghayes.com 

Email: ibrahim.eldaghayes@vetmed.edu.ly