Emerging Infectious Diseases (Sep 2023)

Reoccurring Escherichia coli O157:H7 Strain Linked to Leafy Greens–Associated Outbreaks, 2016–2019

  • Jessica C. Chen,
  • Kane Patel,
  • Peyton A. Smith,
  • Eshaw Vidyaprakash,
  • Caroline Snyder,
  • Kaitlin A. Tagg,
  • Hattie E. Webb,
  • Morgan N. Schroeder,
  • Lee S. Katz,
  • Lori A. Rowe,
  • Dakota Howard,
  • Taylor Griswold,
  • Rebecca L. Lindsey,
  • Heather A. Carleton

DOI
https://doi.org/10.3201/eid2909.230069
Journal volume & issue
Vol. 29, no. 9
pp. 1895 – 1899

Abstract

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Genomic characterization of an Escherichia coli O157:H7 strain linked to leafy greens–associated outbreaks dates its emergence to late 2015. One clade has notable accessory genomic content and a previously described mutation putatively associated with increased arsenic tolerance. This strain is a reoccurring, emerging, or persistent strain causing illness over an extended period.

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