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Molecular subtyping for source tracking of Escherichia coli using core genome multilocus sequence typing at a food manufacturing plant
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Molecular subtyping for source tracking of Escherichia coli using core genome multilocus sequence typing at a food manufacturing plant
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Journal Article
Molecular subtyping for source tracking of Escherichia coli using core genome multilocus sequence typing at a food manufacturing plant
2021
Overview
When harmful bacteria are detected in the final product at a food manufacturing plant, it is necessary to identify and eliminate the source of contamination so that it does not occur again. In the current study, the source of contamination was tracked using core genome multilocus sequence typing (cgMLST) analysis in cases where Escherichia coli was detected in the final product at a food manufacturing plant. cgMLST analysis was performed on 40 strains of E . coli collected from the environment [floor (26 strains), drainage ditch (5 strains), container (4 strains), post-heating production line (1 strain)] and products [final product (3 strains) and intermediate product (1 strain)]. In total, 40 E . coli isolates were classified into 17 genogroups by cgMLST analysis. The 4 E . coli strains isolated from the intermediate and final products were classified into two genogroups (I and II). Certain isolates collected from the environment also belonged to those genogroups, it was possible to estimate the transmission of E . coli in the manufacturing plant. Thus, the dynamics of E . coli in the food manufacturing location were clarified by using cgMLST analysis. In conclusion, our results indicate that cgMLST analysis can be effectively used for hygiene management at food manufacturing locations.
Publisher
Public Library of Science (PLoS),Public Library of Science
Subject
/ Bacteria
/ Computer and Information Sciences
/ E coli
/ Escherichia coli - classification
/ Escherichia coli Infections - microbiology
/ Food
/ Food contamination & poisoning
/ Genomes
/ Genomics
/ Genotype
/ Humans
/ Hygiene
/ Identification and classification
/ Manufacturing and Industrial Facilities
/ Medicine
/ Medicine and Health Sciences
/ Molecular Epidemiology - methods
/ Multilocus Sequence Typing - methods
/ Phenols
/ Q
/ R
/ Research and Analysis Methods
/ Science
/ Testing
