ANTIBIOTIC SUSCEPTIBILITY OF Escherichia coli OBTAINED FROM NEM CHUA IN VINH LONG RETAIL MARKETS | Thi | TNU Journal of Science and Technology

ANTIBIOTIC SUSCEPTIBILITY OF Escherichia coli OBTAINED FROM NEM CHUA IN VINH LONG RETAIL MARKETS

About this article

Received: 18/07/24                Revised: 17/10/24                Published: 18/10/24

Authors

1. Quach Van Cao Thi Email to author, Vinh Long University of Technology Education
2. Nguyen Trung Truc, Vinh Long University of Technology Education
3. Duong Thi Cam Nhung, Thu Dau Mot University

Abstract


This research evaluated the antibiotic sensitivity of Escherichia coli (E. coli) obtained from Nem chua in Vinh Long province retail markets. The findings isolated a total of 19 E. coli isolates. The antibiotic susceptibility of E. coli to 14 antibiotics was performed using the disk diffusion method. This investigation illustrated that E. coli strains were most resistant to 10 antibiotics, of which high resistance to two antibiotics are tetracycline (84.21%) and ampicillin (84.21%). Meanwhile, bacterial isolates are susceptible to ampicillin/sulbactam (100%), ceftazidime (94.74%), norfloxacin (89.48%), and ofloxacin (89.48%). Additionally, the bacterial isolates in this observation were multi-resistant to many antibiotics. Among them, strain EC7 is multi-resistant to ten of fourteen tested antibiotics, with a multi-drug resistance index (MAR) of 0.71. Based on 16S rRNA gene sequencing results, isolate EC7 is 100% similar to E. coli strain WCHEC050613 (CP019213.3) on GenBank.

Keywords


Antibiotics; Escherichia coli; Fermented pork roll; Multiple drug resistance; Vinh Long

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DOI: https://doi.org/10.34238/tnu-jst.10786

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