NEW YORK (AP) — As recent illnesses tied to raw turkey , ground beef , cut melon and romaine lettuce suggest, U.S. food poisoning cases don't appear to be going away anytime soon. The Centers for Disease Control and Prevention said in a report Thursday that the frequency of several types of food poisoning infections climbed last year, but that the increases could be the result of new diagnostic tools that help identify more cases. Overall, the agency believes food poisoning rates have remained largely unchanged. Rob Tauxe, director of the agency's foodborne illness division, said the figures show that more needs to be done to make food safer.Read more on NewsOK.com