Jennifer H. Han, MD, MSCE
SRN Chair

Dr. Jennifer Han is an Assistant Professor of Medicine of the Division of Infectious Diseases, Assistant Professor of Epidemiology, Senior Scholar at the Center for Clinical Epidemiology and Biostatistics (CCEB), Senior Fellow at the Leonard Davis Institute for Health Economics, Senior Fellow at the Center for Public Health Initiatives, and Fellow at the Institute of Aging, all at Penn. She holds an MSCE from Penn, and is also the Associate Healthcare Epidemiologist at the Hospital of the University of Pennsylvania (HUP). Her research focuses on healthcare-associated infections, antibiotic use, and antibiotic-resistant organisms, with a specific focus on the post-acute care setting (e.g., long-term acute care hospitals, nursing homes). She is the recipient of several federally-funded grants, including from the National Institutes of Health (NIH), Centers for Disease Control and Prevention (CDC), and the Antibacterial Resistance Leadership Group (ARLG).


Clare Rock, MD, MS
SRN Vice Chair

Dr. Clare Rock is an assistant professor of medicine, Division of Infectious Diseases at the Johns Hopkins University School of Medicine, Associate Hospital Epidemiologist at the Johns Hopkins Hospital, and Faculty Member at Armstrong Institute for Patient Safety and Quality. Her research interests include environmental transmission, with particular interest in CRE outbreak management, and the transmission and epidemiology of C. difficile. She also focuses on diagnostic stewardship, and the behavioral, cultural, and human factors aspects of implementation of initiatives to enhance appropriate use of diagnostic tests. Dr. Rock earned her MD at the University College Dublin School of Medicine, National University of Ireland, and her MS masters of clinical science of research at the University of Maryland, where she received the MS scholar award for epidemiology.








Marin Schweizer, PhD
SRN Review Committee Chair

Dr. Marin Schweizer is an Assistant Professor of Internal Medicine at the University of Iowa Carver College of Medicine and a core investigator at the Iowa City VA Health Care System Center for Innovation. She received her PhD in Epidemiology from the University of Maryland, Baltimore. Her research focuses on developing and evaluating evidence-based strategies to reduce the prevalence of and poor outcomes associated with healthcare-associated infections, including prevention and treatment of surgical site infections, and comparative effectiveness of medications to prevent and treat S. aureus bloodstream infections. She has expertise in study design, meta-analysis, and outcomes research.