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Detection of Live Escherichia coli O157:H7 Cells by PMA-qPCR
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Notes from the Field: Outbreak of Escherichia coli O157:H7 Infections Linked to Organic Walnuts - Washington and
Abstract:
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† (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).
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