Abstract

This study aimed to investigate the prevalence of foodborne pathogenic bacteria in bovine milk, their antibiogram phenotype, and the carriage of antibiotic resistance genes. Raw bovine milk samples (n = 100) were randomly collected from different suppliers in the northwest of Iran. Antibiotic-resistant patterns and the presence of antibiotic resistance genes were evaluated in the isolates. Escherichia coli, Listeria monocytogenes, Staphylococcus aureus, and Salmonella spp. were isolated from 78%, 47%, 25%, and 21% of samples, respectively. All isolates showed high rates of resistance to amoxicillin, penicillin, and cefalexin. The blaTEM and blaSHV genes were detected in 50.0% and 6.4% of E. coli isolates, respectively. Also, 28.5% and 19.0% of Salmonella isolates were positive for blaTEM and blaSHV. The frequency of mecA and blaZ in S. aureus isolates was 20.0% and 12.0%, respectively. The high prevalence of bovine milk contamination with antimicrobial-resistant species in this study necessitates precise control on antibiotic prescription in veterinary medicine.

Details

Title
High prevalence of antibiotic resistance in pathogenic foodborne bacteria isolated from bovine milk
Author
Hassani Sima 1 ; Mir-Hassan, Moosavy 1 ; Gharajalar Sahar Nouri 2 ; Khatibi, Seyed Amin 1 ; Hajibemani Abolfazl 3 ; Barabadi Zahra 4 

 University of Tabriz, Department of Food Hygiene and Aquatic, Faculty of Veterinary Medicine, Tabriz, Iran (GRID:grid.412831.d) (ISNI:0000 0001 1172 3536) 
 University of Tabriz, Department of Pathobiology, Faculty of Veterinary Medicine, Tabriz, Iran (GRID:grid.412831.d) (ISNI:0000 0001 1172 3536) 
 University of Tabriz, Department of Clinical Sciences, Faculty of Veterinary Medicine, Tabriz, Iran (GRID:grid.412831.d) (ISNI:0000 0001 1172 3536) 
 Hamadan University of Medical Sciences, Department of Tissue Engineering, School of Medicine, Hamadan, Iran (GRID:grid.411950.8) (ISNI:0000 0004 0611 9280) 
Publication year
2022
Publication date
2022
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2637645727
Copyright
© The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.