Sharon Berk, an aquatic toxicologist at Tennessee Tech University's Center for Management, Utilization and Protection of Water Resources, is available to speak about the recent Legionnaires' outbreak in Chicago. She has been researching how interactions between protozoa and bacteria cause the disease at TTU for 25 years and has done research for the Environmental Protection Agency and the National Institutes of Health.For more information, visit http://www.tntech.edu/people/sberk?Itemid=344High-res photos available on request.