Could blockchain have solved the mystery of the romaine lettuce E. coli outbreak?

The first food poisoning cases came to light in late March — eight patrons of fast-food restaurants in New Jersey suffered bloody diarrhea and cramps that sent them rushing to hospitals.
More than two months later, one person is dead in California, 75 others have been hospitalized, and federal authorities still don’t know where a nasty strain of E. coli bacteria latched onto romaine lettuce from Yuma, Ariz.
Advertisement Their struggle to trace dozens of supply lines across 32 states, on a paper…

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