To curb leafy greens-related outbreaks, pilot studies were undertaken to identify how to improve food safety throughout the supply chain. Here’s what we learned.

I recall sitting in the office one day in the fall of 2018 when I received a call from a reporter who informed me that there had been a further outbreak of Escherichia coli O157:H7 linked to romaine lettuce. After an initial response of “oh, no,” the reporter asked why do we continue to have outbreaks linked to lettuce?