Michele Hlavsa, RN, MPH, is Chief of the U.S. CDC's Healthy Swimming Program. Her areas of expertise include recreational water–associated illness, particularly when caused by Cryptosporidium. She has worked on a number of outbreak investigations of recreational water–associated illness at CDC and collaborates with U.S. and foreign public health authorities and the private sector to develop appropriate prevention and control measures. She has a bachelor’s degree in nursing from the College of New Jersey and a master’s in public health/epidemiology from Emory University. Michele was an Epidemic Intelligence Service Officer prior to joining the Healthy Swimming Program.