ArticleCurrent microbiology2025
Unveiling the Genomic Landscape of Escherichia coli O1:K1:H7 ST59 in Non-complicated Urinary Infections from Colombia Through Whole-Genome Sequencing.
Article in Current microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Escherichia coli (E. coli) is a Gram-negative bacterium known for causing both intestinal and extraintestinal infections in humans. Among extraintestinal infections, urinary tract infections (UTIs) are particularly prevalent and impactful. In Colombia, limited information is available regarding the molecular epidemiology of E. coli. This lack of data hinders the understanding of the local epidemiological landscape and the identification of pathogenic lineages that may contribute to public health concerns. This study aimed to characterize an E. coli strain isolated from a 24-year-old female patient with a community-acquired lower UTI, focusing on genotypic analysis through whole-genome shotgun sequencing (WGSS) and subsequent bioinformatics investigations. The identified strain belongs to phylogroup F, with serotype O1:H7 and sequence type (ST) 59. Several virulence factors, including traT and afimbrial adhesins (afaC), were identified, with afaC being notably uncommon in ST59 phylogroup F. In addition, an antibiotic susceptibility test was performed, and the isolate was found to be sensitive to all the antibiotics tested. This work contributes to the understanding of E. coli phylogroup F in Colombia and provides valuable genomic data, shedding light on the virulence profile of this strain in lower urinary tract infections.
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