The food poisoning outbreak linked to romaine lettuce has spread to three more states. Health officials said they now have reports of 98 cases in 22 states, with the addition of Mississippi, Tennessee, and Wisconsin. The outbreak is blamed on E. coli bacteria in romaine lettuce grown in Yuma, Arizona.Forty-six people have been hospitalized, including 10 with kidney failure. No deaths have been reported. Health officials say people shouldn't eat romaine lettuce unless they know it's not from Yuma. Every winter, the Yuma region provides most of the romaine sold in the US.