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Article Abstract

Despite their clinical relevance, the within-host evolution of extended-spectrum beta-lactamase (ESBL)-producing Enterobacterales is still poorly understood. To estimate the within-host evolutionary rates of ESBL-producing and species complex, we fitted phylodynamic models to genomic sequence data of longitudinally collected rectal swabs from 63 colonized hospital patients. We estimated an average within-host evolutionary rate of 7.71e-07 [4.60e-07,1.10e-06] mutations/site/year for and 4.20e-07 [1.57e-07,7.14e-07] mutations/site/year for the species complex, with limited variation observed across patients and sequence types. These estimates are presumably the most accurate reported so far and are useful for future epidemiological and evolutionary studies.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12413297PMC
http://dx.doi.org/10.1099/mgen.0.001499DOI Listing

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Despite their clinical relevance, the within-host evolution of extended-spectrum beta-lactamase (ESBL)-producing Enterobacterales is still poorly understood. To estimate the within-host evolutionary rates of ESBL-producing and species complex, we fitted phylodynamic models to genomic sequence data of longitudinally collected rectal swabs from 63 colonized hospital patients. We estimated an average within-host evolutionary rate of 7.

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