The Centers for Disease Control and Prevention believes a multi-state E.coli outbreak is linked to chopped romaine lettuce. It's warning consumers to throw out any bagged lettuce or salad mix they have at home.

More than 30 people in 11 states have gotten sick after eating romaine lettuce, and 22 have been hospitalized.

There has been no single producer, grower, supplier, distributor or brand that has been singled out but rather according to the information collected so far suggests contaminated romaine grown in the Yuma, Arizona area may be responsible.

According to a University of Arizona website, Arizona ranks second only to California for lettuce production, and 95 percent of the lettuce grown there is grown in Yuma County.

Restaurants and retailers, like consumers, are being advised to check with their suppliers and not to serve or sell any chopped romaine lettuce from the Yuma, Arizona growing region.

Customers should ask grocery stores and restaurants about the source of their lettuce before purchasing and if the source cannot be confirmed, do not eat it.

[CDC]