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Presentation of Extended-Spectrum Beta-Lactamase-Producing Escherichia Coli Sequence Type 58 Strain (ST58) with Solid
Miguel Carabaño1, Eunji Jang2, Swapna Charla3
1Department of Pathology and Laboratory Medicine, The Warren Alpert Medical School of Brown University, Providence, RI, USA Mcarabano@brownhealth.org.
Abstract:
Escherichia coli (E. coli) is a versatile bacterium, presenting a wide variety of virulence factors contributing to intestinal and extraintestinal disease. This paper presents a unique case of Escherichia coli strain exhibiting an extended-spectrum beta-lactamase (ESBL) as determined by minimum inhibitory concentration (MIC), identified as sequence type 58 (ST58). The strain, isolated from a clinical specimen, displayed unusual characteristics, forming a solid subcutaneous mass and presenting a hypermucoid phenotype. Comprehensive analysis, including whole-genome sequencing (WGS) and conventional serotyping, was conducted to understand the genetic and phenotypic features of this atypical E. coli strain.
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