Tracking the Source Disease investigators like Patricia Griffin, are working to find the sources of these outbreaks and prevent them in the future. Griffin, of the U.S. CDC (Centers for Disease Control and Prevention), has worked in the foodborne disease business for 15 years. Outbreaks like the incident that killed Lauren Beth Rudolph turned her attention to the public food safety threat that exists in restaurants and in the food production system. Food safety is no longer just a question of handling food properly in the domestic kitchen. "Now," Griffin says, we are more aware that the responsibility does not rest solely with the cook. We know