Author

Dorian J. Feistel

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Open access Aug 2026

Environmental monitoring for antimicrobial resistance in a metropolitan watershed

Monitoring antimicrobial resistance (AR) in surface water has been proposed to identify sources, drivers, and transmission of AR in the environment and signal emerging AR threats. We conducted a year-long surface water AR assessment to inform the design of environmental AR monitoring approaches for an urbanized water...

D. Holcomb, Molly E. Cantrell, Dorian J. Feistel et al. · Journal of Water and Health · 0 citations

Open access Aug 2026

Genomovar-level resolution reveals rapid pathotype switching and genomovar-specific disease potential in diarrheagenic Escherichia coli populations in northern Ecuador

These findings demonstrate that, although there seems to be within-lineage (phylogroup) conservation of virulence, pathotype identity is a labile state defined by horizontally acquired virulence genes at the genomovar level, and that the genomovar framework provides a biologically meaningful unit for linking intra-spec...

Dorian J. Feistel, K. Jesser, K. Levy et al. · bioRxiv · 0 citations