Prevalence, Antibiotic Resistance and Molecular Characterization of in Ready-to-eat Fruits and Vegetables in Shanghai, China

Overview

Journal Curr Res Food Sci

Date 2024 Jan 16

PMID 38226140

Authors

Kai Jia

Xiaojie Qin

Xiangfeng Bu

Huajian Zhu

Yangtai Liu

Xiang Wang

Zhuosi Li

Qingli Dong

Affiliations

Soon will be listed here.

Abstract

() is one of the foodborne pathogens. This study aimed to investigate the prevalence of in ready-to-eat (RTE) fruits and vegetables in Shanghai, China. We evaluated antibiotic resistance patterns and genetic diversity of isolates through whole genome sequencing. Our findings demonstrated that out of 143 market samples, 47 (32.87%) tested positive for , with the prevalence rates ranging from 10% to 57.14% among 12 types of RTE fruits and vegetables. Most isolates were resistant to trimethoprim-sulphamethoxazole, oxacillin, and ampicillin. We identified a total of 15 antibiotic resistance genes associated with resistance to 6 antibiotics, such as fosfomycin, fluoroquinolone, and -lactam. Adhesion genes and enterotoxin genes, including , , , , , and , were also identified. Seven multi-locus sequence types (MLST) were detected, two of which were novel (ST7208 and ST7986). Notably, ST705-t529 (34.04%) and ST6-t701 (27.79%) represented the predominant types of . Furthermore, three of the isolates were confirmed to be methicillin-resistant by genes. Taken together, our results highlight the high prevalence of in RTE fruits and vegetables, posing a potential threat to food safety, particularly due to its high level of antibiotic resistance.

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