Due to a recent E. coli outbreak, the Centers for Disease Control and Prevention (CDC) is advising the public not to consume any type of romaine lettuce. Retailers and restaurants are advised not to serve or sell products containing romaine lettuce.This food safety alert includes all types or uses of romaine lettuce, such as whole heads or hearts, and bags and boxes of precut lettuce and salad mixes. Learn what the potential health complications are from this infection, and who is most at risk.