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Plasmidome of Salmonella enterica serovar Infantis recovered from surface waters in a major agricultural region for leafy greens in California.
PLoS One
January 2025
Produce Safety and Microbiology Unit, Western Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, Albany, California, United States of America.
Non-typhoidal Salmonella enterica is a leading cause of gastrointestinal illnesses in the United States. Among the 2,600 different S. enterica serovars, Infantis has been significantly linked to human illnesses and is frequently recovered from broilers and chicken parts in the U.
View Article and Find Full Text PDFA Polymerase Chain Reaction (PCR) Method to Detect Emerging Multidrug-Resistant Salmonella Infantis Harboring the pESI Plasmid in Seafood.
J AOAC Int
January 2025
ICAR-Central Institute of Fisheries Education, Quality Control Laboratory, Fish Processing Technology Department, Mumbai 400061, India.
Background: Salmonella Infantis is an emerging multidrug-resistant pathogen worldwide due to the acquisition of a megaplasmid, plasmid of emerging Salmonella Infantis (pESI). Reported initially in poultry, the distribution of pESI-harboring S. Infantis in other food types, including seafood, is unknown.
View Article and Find Full Text PDFThe transcriptional regulation of the horizontally acquired iron uptake system, yersiniabactin and its contribution to oxidative stress tolerance and pathogenicity of globally emerging strains.
Gut Microbes
July 2024
The Infectious Diseases Research Laboratory, Sheba Medical Center, Tel-Hashomer, Israel.
The bacterial species () is a highly diverse pathogen containing more than 2600 distinct serovars, which can infect a wide range of animal and human hosts. Recent global emergence of multidrug resistant strains, from serovars Infantis and Muenchen is associated with acquisition of the epidemic megaplasmid, pESI that augments antimicrobial resistance and pathogenicity. One of the main pESI's virulence factors is the potent iron uptake system, yersiniabactin encoded by , and gene cluster.
View Article and Find Full Text PDFCuring of a field strain of Salmonella enterica serovar Infantis isolated from poultry from its highly stable pESI like plasmid.
J Microbiol Methods
July 2024
Migal-Galilee Research Institute, Kiryat-Shmona 1101602, Israel; Tel-Hai College, Upper Galilee 1220800, Israel. Electronic address:
Salmonella enterica serovar Infantis (S. infantis) is an important emerging pathogen, associated with poultry and poultry products and related to an increasing number of human infections in many countries. A concerning trend among S.
View Article and Find Full Text PDFSalmonella enterica serovar Infantis presents an ever-increasing threat to public health because of its spread throughout many countries and association with high levels of antimicrobial resistance (AMR). We analyzed whole-genome sequences of 5,284 Salmonella Infantis strains from 74 countries, isolated during 1989-2020 from a wide variety of human, animal, and food sources, to compare genetic phylogeny, AMR determinants, and plasmid presence. The global Salmonella Infantis population structure diverged into 3 clusters: a North American cluster, a European cluster, and a global cluster.
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