Scientists Trace A Surprising Source : The Salt Vegetable farmers in Yuma, Ariz., are asking whether they can co-exist in the same valley with a large cattle feedlot.

After an E.coli outbreak in romaine lettuce sickened more than 200 people in April, Walmart pushed suppliers to use IBM's blockchain-based tracking software.

The agency is conducting an investigation to trace the contaminated lettuce that made people sick to the bacteria’s source. This strain, E. coli O157:H7, resembles an outbreak among leafy green ...

Blockchain track and trace technology may be one answer to wholesale recalls of foods such as lettuce, the FDA says. Tracking food faster could speed up recalls, but it won't stop contamination ...

Adams Bros. Farms, the producer linked to the pre-Thanksgiving outbreak, has not shipped lettuce since Nov. 20 and has cooperated with the investigation, the FDA said in a statement.

The price of lettuce is skyrocketing, and we're even seeing a shortage of the vegetable in California. The problem can be traced back to the Salinas Valley. 24/7 Live Los Angeles Orange County ...