FDA investigation

December 22, 2020
The FDA, along with CDC and state and local partners, investigated a multistate outbreak of E. coli O157:H7 infections in the fall of 2020. The epidemiology and traceback investigation have determined that the outbreak was linked to leafy greens. The epidemiological and traceback investigations were not able to determine a specific type of leafy green linked to illnesses. On 12/22/2020, the CDC announced that this outbreak appears to be over. This outbreak, announced by FDA and CDC on October 28, 2020, was caused by a strain of E. coli that is genetically related to a strain linked to the fall 2019 romaine outbreak.

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