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and through the pig meat chain in Sardinia: occurrence, antimicrobial resistance and genetic insight.
Ital J Food Saf
December 2024
Department of Veterinary Medicine, University of Sassari.
This study aimed to characterize Salmonella and Yersinia enterocolitica detected in fattening pigs in Sardinia, examining genetic similarity and antimicrobial resistance of isolates from farms and slaughterhouses and evaluating carcass hygiene. Environmental samples were collected from six pig farms, and the same pigs were also sampled at the slaughterhouses. Palatine tonsils, mesenteric lymph nodes, colon content, and carcass surface samples were collected and tested for Salmonella and Y.
View Article and Find Full Text PDFCharacterization of novel mutations involved in the development of resistance to colistin in Salmonella isolates from retail pork in Shanghai, China.
Int J Food Microbiol
February 2025
MOST-USDA Joint Research Center for Food Safety and NMPA Key Laboratory for Testing Technology of Pharmaceutical Microbiology, Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China. Electronic address:
Salmonella is an important foodborne pathogen that poses a significant threat to food safety. This study aims to assess the prevalence, genomic features, and colistin-resistant mechanisms of Salmonella isolates collected from 118 retail pork samples from January 2021 to January 2022 in Shanghai, China. Overall, 46 (39.
View Article and Find Full Text PDFIS-flanked composite transposon harboring in multidrug-resistant Typhimurium.
iScience
February 2025
Department of Clinical Laboratory, Lishui People's Hospital, The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, Zhejiang, China.
Multidrug-resistant Typhimurium has emerged as a global public health concern. Asymptomatic gastrointestinal carriage is a key factor in the spread of antibiotic-resistant bacteria. However, it is challenging to obtain direct evidence of transfer of mobile genetic elements (MGEs).
View Article and Find Full Text PDFPotential links between human bloodstream infection by Salmonella enterica serovar Typhimurium and international transmission to Colombia.
PLoS Negl Trop Dis
January 2025
Institute of Infection, Veterinary & Ecological Sciences, University of Liverpool, Liverpool, United Kingdom.
Salmonella enterica serovar Typhimurium is a prevalent food-borne pathogen that is usually associated with gastroenteritis infection. S. Typhimurium is also a major cause of bloodstream infections in sub-Saharan Africa, and is responsible for invasive non-typhoidal Salmonella (iNTS) disease.
View Article and Find Full Text PDFEvaluation of tumor-colonizing strains using the chick chorioallantoic membrane model.
mBio
January 2025
Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas, USA.
The chick embryo chorioallantoic membrane (CAM) tumor model is a valuable preclinical model for studying the tumor-colonizing process of serovar Typhimurium. It offers advantages such as cost-effectiveness, rapid turnaround, reduced engraftment issues, and ease of observation. In this study, we explored and validated the applicability of the partially immune-deficient CAM tumor model.
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