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Lack of correlation between growth rate and sequence type among Cronobacter sakazakii.

Authors
  • Jackson, Emily E1
  • Gnanou Besse, Nathalie2
  • Bennour Hennekinne, Rabeb3
  • Ells, Timothy4
  • Laurentie, Michel5
  • Meheut, Thomas6
  • Forsythe, Stephen J7
  • 1 Pathogen Research Group, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, United Kingdom. Electronic address: [email protected]. , (United Kingdom)
  • 2 Agence Nationale de Sécurité Sanitaire, French Agency for Food, Environmental and Occupational Health Safety. Laboratory for Food Safety, Anses, 23 Avenue du Général de Gaulle, 94706, Maisons Alfort Cedex, France. Electronic address: [email protected]. , (France)
  • 3 Agence Nationale de Sécurité Sanitaire, French Agency for Food, Environmental and Occupational Health Safety. Laboratory for Food Safety, Anses, 23 Avenue du Général de Gaulle, 94706, Maisons Alfort Cedex, France. Electronic address: [email protected]. , (France)
  • 4 Kentville Research and Development Centre, Agriculture and Agri-Food Canada, Kentville, Nova Scotia, B4N 1J5, Canada. Electronic address: [email protected]. , (Canada)
  • 5 Agence Nationale de Sécurité Sanitaire, French Agency for Food, Environmental and Occupational Health Safety, Laboratory of Fougères, Platform PAS, 10 Bis r Claude Bourgelat, Javené, France. Electronic address: [email protected]. , (France)
  • 6 Agence Nationale de Sécurité Sanitaire, French Agency for Food, Environmental and Occupational Health Safety. Laboratory for Food Safety, Anses, 23 Avenue du Général de Gaulle, 94706, Maisons Alfort Cedex, France. , (France)
  • 7 Pathogen Research Group, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, United Kingdom. Electronic address: [email protected]. , (United Kingdom)
Type
Published Article
Journal
Food Microbiology
Publisher
Elsevier
Publication Date
May 01, 2023
Volume
111
Pages
104191–104191
Identifiers
DOI: 10.1016/j.fm.2022.104191
PMID: 36681390
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Species identification and growth rates for a collection of Cronobacter strains from clinical and non-clinical sources have been previously reported. However, advancements in DNA sequencing-based identification methods now allow for more accurate identification. Here we report the sequence types (STs) for 24 strains of Cronobacter sakazakii and examine any possible correlation between sequence type and growth rate, which could influence risk through greater pathogen multiplication and reach of infectious doses during time between formula preparation and feeding. The most common clonal complexes (CCs) identified were C. sakazakii CC1 and CC4. CC1 strains belonged to ST1 (n = 8) and ST391 (n = 1), while CC4 included ST4 (n = 4), ST255 (n = 1) and ST295 (n = 1). Three strains were found to belong to CC100 and two were found to belong to ST64. The remaining STs identified were represented by single strains. CC4 strains have a slightly not significant tendency for faster growth rates at 25 °C; however, the small sample size suggests that more strains need to be analysed to determine if this is a true result. In conclusion, the growth rates of C. sakazakii strains do not appear to be strongly correlated to ST. Copyright © 2022 Elsevier Ltd. All rights reserved.

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