date:Aug 10, 2018
Outbreak investigators say a cattle feedlot near a canal providing water to growing regions in Arizona is a key element in their hypothesis about the source of E. coli that contaminated romaine lettuce earlier this year.
The Food and Drug Administration has been investigating the outbreak, linked to romaine grown in the Yuma, AZ, area since the first week of April. Monday the agency reported on the hypothesis about a concentrated animal feeding operation near the canal. Dust from such feedlots