Author

Sara S. K. Koenig

The University of Texas at San Antonio

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

Click to filter author papers

Microbiology· 2 Genomics· 1

Signature Assays, Organisms & Methods

Click to filter · or open tag

Organism:E. coli· 3 Approach:statistical model· 2 Assay:whole-genome sequencing· 2 Research Focus:clustering· 1 Assay:DNA methylation· 1 Approach:experimental assay· 1 Research Focus:host-pathogen & immune response· 1 Research Focus:phylogenetics / evolution· 1

Frequent Co-Authors

Irvin RiveraiD· 3 shared Mark EppingeriD· 3 shared Anwar A. Kalalah· 2 shared Armando L Rodriguez· 2 shared Joseph M. BosilevaciD· 2 shared Adeleh Arzhangi· 1 shared Ali DadvariD· 1 shared Ali Nemati· 1 shared

Activity by Year

2026-2026 · peak 3/yr

Co-Author Collaboration Network

10 top collaborators · 35 mutual co-author links

Click any collaborator node to inspect or filter shared papers

Focal author (center)Selected co-authorORCID co-authorUnlinked name

Curved chords = mutual co-authorship

3 shared papersMicrobiology

Irvin RiveraORCID

Mutual co-authors in cluster

Author profile →

3 papers

Recent·Most cited

MicrobiologybioRxivPreprintSep 18, 2026

Pathogenome and Plasmid-Borne Antimicrobial Resistance Phenotypes in a Multidrug-Resistant O111:H8 Shiga Toxin-Producing Escherichia coli Strain

Irvin Rivera, Anwar A. Kalalah, Sara S. K. Koenig…·Mark Eppinger

The paper characterizes four plasmids in an O111:H8 STEC strain, showing their mobility, gene content, and resistance phenotypes, with findings on plasmid interactions and resistance mechanisms.

DOI 10.64898/2026.09.16.752176

E. coliwhole-genome sequencing

𝕏 PostBluesky

MicrobiologybioRxivPreprintSep 18, 2026

Cross-Serogroup Analysis of Representative Top-Seven Shiga toxin-producing Escherichia coli Plasmids Reveals Lineage-Specific Patterns

Ali Nemati, Irvin Rivera, Soren Mohammadi…·Mark Eppinger

The paper analyzes plasmid sequences from seven STEC serogroups to identify lineage-specific virulence and resistance patterns and mobility features.

DOI 10.64898/2026.09.16.752139

E. coliDNA methylation

𝕏 PostBluesky

GenomicsVirulencePeer-reviewedMay 15, 2026

Phylogenomic framework and virulence gene boundaries of emerging Shiga toxin producing Escherichia coli O118 informed by the comprehensive profiling of 359 O118 genomes

Irvin Rivera, Sara S. K. Koenig, Armando L Rodriguez…·Mark Eppinger

This study analyzes 359 O118 STEC genomes to characterize their phylogenetic relationships, virulence factors, and resistance traits, identifying novel pathogenicity islands and genetic diversity.

1 citation

E. coliwhole-genome sequencing

𝕏 PostBluesky