Romaine lettuce is back on store shelves after an unprecedented recall but not all romaine is yet safe to eat.
Stephen Ostroff with the Food an Drug Association says they have found the strain of E.coli in a water reservoir at Adam Brothers Farms in Santa Barbara County, California but they are not ready to say that is the only source.
"The finding on this farm does not appear to explain all the illness that are associated with this outbreak based on the information that we have to date," says Ostroff. The advice to consumers is to avoid romaine lettuce from Monterey, Santa Barbara and San Benito counties in California.
Some romaine lettuce products are now labeled with a harvest location by region. Consumers, restaurants, and retailers should check bags or boxes of romaine lettuce for a label indicating where the lettuce was harvested. If the package doesn't have this information,do not eat it.
Since the last update on December 6, an additional 7 ill people have been included in this investigation. 59 people infected with the outbreak strain of Shiga toxin-producing E. coli O157:H7 have been reported from 15 states and the District of Columbia.