Evidence of international transmission of mobile colistin resistant monophasic Salmonella Typhimurium ST34.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
01 05 2023
01 05 2023
Historique:
received:
09
01
2023
accepted:
26
04
2023
medline:
3
5
2023
pubmed:
2
5
2023
entrez:
1
5
2023
Statut:
epublish
Résumé
S. 4,[5],12:i:-, a monophasic variant of S. enterica serovar Typhimurium, is an important multidrug resistant serovar. Strains of colistin-resistant S. 4,[5],12:i:- have been reported in several countries with patients occasionally had recent histories of travels to Southeast Asia. In the study herein, we investigated the genomes of S. 4,[5],12:i:- carrying mobile colistin resistance (mcr) gene in Thailand. Three isolates of mcr-3.1 carrying S. 4,[5],12:i:- in Thailand were sequenced by both Illumina and Oxford Nanopore platforms and we analyzed the sequences together with the whole genome sequences of other mcr-3 carrying S. 4,[5],12:i:- isolates available in the NCBI Pathogen Detection database. Three hundred sixty-nine core genome SNVs were identified from 27 isolates, compared to the S. Typhimurium LT2 reference genome. A maximum-likelihood phylogenetic tree was constructed and revealed that the samples could be divided into three clades, which correlated with the profiles of fljAB-hin deletions and plasmids. A couple of isolates from Denmark had the genetic profiles similar to Thai isolates, and were from the patients who had traveled to Thailand. Complete genome assembly of the three isolates revealed the insertion of a copy of IS26 at the same site near iroB, suggesting that the insertion was an initial step for the deletions of fljAB-hin regions, the hallmark of the 4,[5],12:i:- serovar. Six types of plasmid replicons were identified with the majority being IncA/C. The coexistence of mcr-3.1 and bla
Identifiants
pubmed: 37127697
doi: 10.1038/s41598-023-34242-4
pii: 10.1038/s41598-023-34242-4
pmc: PMC10151351
doi:
Substances chimiques
Colistin
Z67X93HJG1
Anti-Bacterial Agents
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
7080Informations de copyright
© 2023. The Author(s).
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