Romaine blockchain

The World

An E. coli outbreak has been linked to romaine lettuce. As a result, the CDC is warning everyone to avoid any and all romaine. Ramesh Gopinath, the VP of IBM Food Trust, tells Marco Werman that massive recalls like this could be a thing of the past. His company uses blockchain to trace produce through the global supply chain, which would enable supermarkets to pinpoint exactly where contamination occurs.

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