Public health officials are now telling consumers to avoid all types of romaine lettuce from southwest Arizona because of an E. coli outbreak linked to the vegetable that has spread to at least 16 states and sickened at least 60 people, including eight inmates at an Alaska prison. The Centers for Disease Control and Prevention said Friday that new information about the illnesses in Alaska led them to expand a warning beyond chopped romaine to include any type of romaine lettuce, including whole heads and hearts of romaine. Although the exact source hasn’t been identified, federal health officials have said information indicates that the contaminated lettuce was grown in the Yuma, Ariz., area. But consumers anywhere in the United States who have store-bought romaine at home, including in salads and salad mixes, should throw it away immediately if they don’t know its specific source, officials said — even if some had already been eaten with no ill effects. Of the people who have been sickened, at least 31 have been hospitalized, including five who developed a type of potentially life-threatening kidney failure known as hemolytic uremic syndrome. No deaths have been reported. Read the rest of the story on washingtonpost.com.