Eellan Sivanesan, M.D.

Dr. Cosgrove is a Professor of Medicine in the Division of Infectious Disease (ID) at Johns Hopkins University School of Medicine and has a joint appointment in the Department of Epidemiology at the Johns Hopkins Bloomberg School of Public Health. She is the Director of Research for the ID Fellowship Program and PI of the T32 training grant that supports ID fellow training. She serves as the Director of the Department of Antimicrobial Stewardship and an Associate Hospital Epidemiologist at The Johns Hopkins Hospital. Dr. Cosgrove’s research interests include the epidemiology and outcomes of antimicrobial resistance, the development of tools and programs to promote the rational use of antimicrobials, the prevention of hospital-acquired infections, and the epidemiology and management of S. aureus bacteremia. Early in her career, she recognized the critical need to study antimicrobial stewardship strategies and has led a series of outcomes studies over the past 20 years that have defined the practice of antimicrobial stewardship in the United States. Her recent research focuses on strategies for implementation of antimicrobial stewardship activities across all healthcare settings via a large, multi-center project including hospitals, long-term care facilities and ambulatory practices funded by the Agency for Healthcare Research and Quality, and approaches to improve how antibiotics are given via a randomized trial to compare intravenous and oral therapy for Gram negative bacteremia funded by PCORI. She is the PI of the Johns Hopkins Prevention Epicenter, a Centers for Disease Control and Prevention-funded program that integrates antimicrobial stewardship, healthcare epidemiology, human factors engineering, data science, and implementation science to address knowledge gaps and develop strategies to optimize patient safety by preventing transmission of pathogens and improving antibiotic use in diverse healthcare settings and patient populations. She is a past voting member of the Presidential Advisory Council on Combating Antibiotic-Resistant Bacteria. She is a Past President of the Society for Healthcare Epidemiology’s Board of Directors. Dr. Cosgrove received her undergraduate degree from Columbia College, her medical degree from Baylor College of Medicine, and her master of science degree in epidemiology from Harvard School of Public Health. She completed her postgraduate training in internal medicine at The Johns Hopkins Hospital and underwent subsequent training in ID at Beth Israel Deaconess Medical Center.

Dr. Justin Jeffers is an assistant professor of pediatrics at the Johns Hopkins University School of Medicine. His area of clinical expertise is pediatric emergency medicine. He specializes in the diagnosis and treatment of pediatric conditions, including shock, cardiac arrest, injuries, and trauma.After receiving his medical degree from the University of Toledo College of Medicine, Dr. Jeffers completed his residency in pediatrics at Hasbro Children’s Hospital/Brown University School of Medicine. He performed his fellowship in pediatric emergency medicine at Northwestern University Feinberg School of Medicine and the Children’s Memorial Medical Center (now the Ann & Robert H. Lurie Children's Hospital of Chicago).

Dr. Stephen J. Meltzer is a Professor of Medicine and Oncology at Johns Hopkins University, Division of Gastroenterology. He is the Director of GI Early Detection Biomarkers Laboratory and a member of the Johns Hopkins Kimmel Cancer Center. His research interests are Gastrointestinal cancer and precancer biomarker discover, development and validation; genomics, epigenomics and bioinformatics, early detection of cancer, outcomes research in cancer and precancer, risk stratification prediction in cancer and precancer, Barrett's esophagus, inflammatory bowel disease-associated cancer, liver cancer and gastric cancer. After receiving degree in Medicine at the State University of New York Medical School, Dr. Meltzer interned at Tulane University in New Orleans and University of Texas Medical Branch in Galveston, TX. He completed his fellowship training program in the University of Colorado and the Lenox Hill Hospital. He was an Assistant Professor in UCLA, Center for Health Science in 1987. Prior to joining the faculty at Johns Hopkins in 2006, he was Professor of Medicine and Pharmacology, Founder and Head of Aero digestive Cancer/Biomarker Program in School of Medicine, University of Maryland at Baltimore. He is an Associate Editor of Cancer Research and a member of the editorial board of Esophageal. He has published 152 original scientific papers in high-impact scientific journals. He also has 43 chapters, review articles, editorials, or letters to the editor; 1 book; and 139 abstracts to his name. He has given a plethora of invited lectures around the world, all involving his principal field of esophageal and gastrointestinal cancer research. He has been the recipient of numerous prestigious national and international awards, including the Robert and Sally D. Funderburg Award in Gastric Cancer Biology and membership in the American Society for Clinical Investigation.Special Interests: Gastrointestinal cancer and precancer biomarker discover, development and validation; genomics, epigenomics and bioinformatics, early detection of cancer, outcomes research in cancer and precancer, risk stratification prediction in cancer and precancer. Barrett's esophagus, inflammatory bowel disease-associated cancer, liver cancer, gastric cancer