<i>Notes from the Field</i> : Outbreak of <i>Escherichia coli</i> O157:H7 Infections Linked to Organic Walnuts — Washington and California, 2024
Outbreaks of Shiga toxin-producing Escherichia coli (STEC) O157 infections are associated primarily with beef and fresh vegetables, particularly leafy greens* (1). Only one reported STEC O157 outbreak in the United States has been linked to tree nuts, specifically a 2011 outbreak in Michigan, Minnesota, and Wisconsin associated with in-shell hazelnuts<sup>†</sup> (2). On March 25, 2024, the Washington State Department of Health alerted CDC to seven STEC O157 infections in Washington and California after determining that the isolates were highly genetically related by whole genome sequencing (WGS) (3).
Authors
- Brooke M. Whitney (ORCID: https://orcid.org/0000-0003-4685-3765)
- Jeffrey Higa
- Erin Jenkins (ORCID: https://orcid.org/0000-0002-7774-2438)
- Bethan Swift (ORCID: https://orcid.org/0000-0002-1411-2973)
- Karen Neil (ORCID: https://orcid.org/0000-0003-2474-9748)
- Laurie Stewart
- Peiman Aminabadi (ORCID: https://orcid.org/0000-0002-2656-6286)
- Laura Gieraltowski (ORCID: https://orcid.org/0000-0002-0575-4579)
- Brandon Adcock (ORCID: https://orcid.org/0000-0001-9193-8915)
- Susan Shelton
- Anna E. Pickett
- Angelica L. Barrall
- Kenneth Zamora
Publication Details
- Journal
- MMWR Morbidity and Mortality Weekly Report
- Published
- 2025-11-26
- DOI
- https://doi.org/10.15585/mmwr.mm7438a2
- Primary Topic
- Escherichia coli research studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Centers for Disease Control and Prevention