On the Mayo Clinic Radio program, Dr. Gregory Poland, director of the Vaccine Research Group at Mayo Clinic, will discuss flu and other vaccine topics. Also on the program, Dr. Andrea Kattah, a nephrologist at Mayo Clinic, will explain a recent Mayo Clinic study that found removing the ovaries in premenopausal women may increase their risk of developing chronic kidney disease. And Carmen Rottenberg, deputy undersecretary at the Department of Agriculture Office of Food Safety, will offer tips to keep your food safe this Thanksgiving.