Herwaldt, Loreen (US)

University of Iowa Carver College of Medicine

Dr. Herwaldt is a Professor in Internal Medicine/Infectious Disease at the University of Iowa Carver College of Medicine. She has a joint appointment in the Epidemiology Department of the College of Public Health. She is board certified in Internal Medicine and Infectious Disease. Dr. Herwaldt does infectious diseases consults and she conducts research related to healthcare-associated infections and prevention of pathogen transmission to patients and healthcare workers. She has grants from the Centers for Disease Control and Prevention and the Agency for Healthcare Research and Quality.


Dr. Herwaldt previously, served as the Hospital Epidemiologist at the University of Iowa Hospitals and Clinics for 20 years, after having served as the Associate Hospital Epidemiologist for five years.


Dr. Herwaldt is on the Planning Committee for the International Conference on Prevention and Infection Control and she previously served on the Planning Committee for the Interscience Conference on Antimicrobial Agents and Chemotherapy. She has served in various capacities for the Society for Healthcare Epidemiology of America (SHEA): member and of chair of the SHEA Nomination Committee, member of SHEA the Education Committee, and the External Affairs Committee, Treasurer, and Academic Counselor. She edited the first edition of the Practical Handbook for Healthcare Epidemiologists.


Dr. Herwaldt received her bachelor’s degree in chemistry from Grinnell College and her doctor or medicine degree from the University of Wisconsin School of Medicine. She completed a residency in internal medicine at Barnes Hospital in St. Louis and an infectious disease fellowship at Washington University in St. Louis. Between her residency and fellowship, she served as an Epidemic Intelligence Service Officer at the Centers for Disease Control and Prevention for two years. She received the SHEA Young Investigator Award and the SHEA Mentor-Scholar Award.