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from Food Products and Food Associated Environments: Antimicrobial Resistance, Genetic Clustering and Biofilm Insights. | LitMetric

AI Article Synopsis

  • The study investigates a foodborne pathogen that can thrive in harsh conditions, commonly found in ready-to-eat foods and poses significant food safety risks due to its ability to form biofilms and resist disinfectants.
  • Out of 227 samples analyzed from 2014 to 2022, the pathogen was identified in 13 samples, including foods like meat and cheese, showing high biofilm-forming ability and notable antibiotic resistance, particularly to trimethoprim-sulfamethoxazole and erythromycin.
  • Genetic analysis revealed multiple strains of the pathogen, some with genes granting resistance to various antibiotics and disinfectants, highlighting the urgent need for ongoing monitoring and stringent control measures to prevent serious health risks like lister

Article Abstract

, a foodborne pathogen, exhibits high adaptability to adverse environmental conditions and is common in the food industry, especially in ready-to-eat foods. strains pose food safety challenges due to their ability to form biofilms, increased resistance to disinfectants, and long-term persistence in the environment. The aim of this study was to evaluate the presence and genetic diversity of in food and related environmental products collected from 2014 to 2022 and assess antibiotic susceptibility and biofilm formation abilities. was identified in 13 out of the 227 (6%) of samples, 7 from food products (meat preparation, cheeses, and raw milk) and 6 from food-processing environments (slaughterhouse-floor and catering establishments). All isolates exhibited high biofilm-forming capacity and antibiotic susceptibility testing showed resistance to several classes of antibiotics, especially trimethoprim-sulfamethoxazole and erythromycin. Genotyping and core-genome clustering identified eight sequence types and a cluster of three very closely related ST3 isolates (all from food), suggesting a common contamination source. Whole-genome sequencing (WGS) analysis revealed resistance genes conferring resistance to fosfomycin (), lincosamides (), fluoroquinolones (), and tetracycline (). In addition, the gene was also detected, conferring resistance to disinfecting agents and antiseptics. Virulence gene profiling revealed the presence of 92 associated genes associated with pathogenicity, adherence, and persistence. These findings underscore the presence of strains in food products and food-associated environments, demonstrating a high virulence of these strains associated with resistance genes to antibiotics, but also to disinfectants and antiseptics. Moreover, they emphasize the need for continuous surveillance, effective risk assessment, and rigorous control measures to minimize the public health risks associated to severe infections, particularly listeriosis outbreaks. A better understanding of the complex dynamics of pathogens in food products and their associated environments can help improve overall food safety and develop more effective strategies to prevent severe health consequences and economic losses.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11118052PMC
http://dx.doi.org/10.3390/antibiotics13050447DOI Listing

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