First Year Fellows

Caitlin Visek, MD
Medical School: The Feinberg School of Medicine, Northwestern University

Caitlin grew up in the Chicago area. She headed to the East Coast for college in Boston, then worked in healthcare consulting in Washington, DC before returning to Chicago for medical school and residency at Northwestern. During her medical training, she was involved in viral respiratory disease research, quality improvement, and global health. She also pursued her interest in public health through experiences at the CDC in Atlanta during medical school and later with the Chicago Department of Public Health. Outside of medicine, Caitlin enjoys cooking, exploring the Baltimore restaurant scene, and running along the waterfront and through Patterson Park.

Lucy Li, MD, PhD
Medical School: Washington University in St. Louis School of Medicine

Lucy attended graduate and medical school in St. Louis at WashU. There, she discovered an interest in fungal pathogens and conducted research on virulence factors in Cryptococcus neoformans. She then moved to Baltimore for internal medicine residency at the Johns Hopkins Hospital. Outside of medicine, Lucy enjoys hiking, baking, and exploring museums.


Sean Anderson, MD
Medical School: Medical College of Wisconsin

Sean grew up in the Milwaukee area and stayed in the Midwest for most of his training, including undergraduate at the University of Michigan, medical school at Medical College of Wisconsin, and residency at the University of Chicago. He majored in Ecology & Evolutionary Biology at Michigan, where his interest in host/pathogen relationships started. He researched viral oncogenesis under Dr. Vera Tarakanova at MCW and HIV diagnostic disparities at UChicago with Dr. Moira McNulty. His career goals are to balance ID clinical care with research in clinical microbiome science. Outside of medicine, Sean plays basketball and baseball (his #6 retired by the Windy City Red Sox).

Seth Judson, MD
Medical School: University of California, Los Angeles David Geffen School of Medicine

Seth grew up in Arizona and Southern California, where he developed a passion for the intersection of our health and the environment. As an undergraduate at Stanford, he studied disease ecology and bat-borne pathogens in Latin America, leading him to an NIH fellowship to research the spillover and transmission of ebolaviruses. He received his MD at UCLA where he collaborated with policymakers in Cameroon to improve predictions of zoonotic viruses and investigated emerging arboviruses with the CDC. During residency at the University of Washington, he assessed SARS-CoV-2 transmission as well as COVID-19 regional risk and data reporting in Africa. His clinical and research interests are at the interface of emerging zoonoses, vector-borne diseases, and pandemic preparedness. Outside of medicine, Seth enjoys creating art and exploring nature with his wife.

Second Year Fellows

Luis Gonzalez Corro, MD
Medical School: Latin American School of Medicine

Dr. Luis Gonzalez Corro was born and raised in rural Panama. At the age of 18, he won a full scholarship to study medicine in Havana, Cuba. Subsequently, he completed his residency in New York City in the Primary Care and Social Internal Medicine program at Montefiore/Albert Einstein in the Bronx. Luis’ research interests include access to HIV and Hepatitis C treatment for impoverished populations with substance use disorders, the use of social sciences frameworks such as Critical Race Praxis and antiracism in HIV care research, as well as the intersection of Community-Based Participatory Research, research-based advocacy, and their translation to policy. Given his lived experiences as an Afro-Latinx physician, Luis is committed to using medicine as a tool for advocacy, equity, and social justice. Hobbies: Dismantling systems of oppression.

Mentors: Greg Lucas, MD, PhD, and Kathleen Page, MD

Morgan Walker, MD
Medical School: Louisiana State University Health Sciences Center School of Medicine, New Orleans

Morgan graduated from Louisiana State University School of Medicine and completed her residency in Internal Medicine at LSU Health Baton Rouge, where she also completed a year as Chief Resident. She is now pursuing a combined fellowship in both ID and Critical Care Medicine. Her research interests are focused on infections in critically ill patients, specifically in the area of novel diagnostic platforms, as well as antimicrobial and diagnostic stewardship within the intensive care unit. Outside of medicine, Morgan enjoys spending time with her family back in Louisiana, exploring the Baltimore/DC area, and cheering on the Saints.

Mentor: Sameer Kadri, NIH

Dariusz Hareza, MD
Medical School: Albert Einstein College of Medicine of Yeshiva University

Dariusz (Darek) was born and raised in the Chicagoland area. His interest in ID started at the University of Illinois at Urbana/Champaign, where he did research on bacteria chemotaxis. He went to medical school at Einstein in New York City, traveling to Uganda twice for research and clinical work. Afterward, he spent time at the CDC working on epidemiologic studies at the Injury Center. For his internal medicine residency, Darek returned home to Chicago and attended the University of Chicago, where he was involved in the public health response to COVID-19 at the Chicago Department of Public Health. He is currently conducing clinical research on gram negative bacterial resistance with Drs. Pranita Tamma and Sara Cosgrove, while taking part in the GTPCI program. Outside of medicine, Darek enjoys eating out in restaurants, having social gatherings with friends, watching hockey (Go Blackhawks!), stargazing, and hiking.

Mentor: Pranita Tamma, MD, MPH

Joowhan Sung, MD, MSc
Medical School: Yonsei University College of Medicine

Joowhan was born and raised in Seoul, South Korea, where he attended medical school at Yonsei University College of Medicine. He then moved to New York City and completed internal medicine residency at Jacobi Medical Center/Albert Einstein College of Medicine. He subsequently worked as a hospitalist at MedStar Southern Maryland Hospital, where he built an early cohort of patients hospitalized with COVID-19 in the spring of 2020. He received a Master of Science degree in Epidemiology from the London School of Hygiene and Tropical Medicine. His thesis focused on estimating the burden of malaria, sickle cell disease, and malnutrition as risk factors for severe anemia among children in Nigeria. He is interested in the intersection of global health tuberculosis research and clinical informatics. Outside of medicine, Joowhan enjoys playing tennis and trying new restaurants with his family.

Mentor: David Dowdy, MD, PhD, MSc, ScM

Third Year Fellows

Chelsea Modlin, MD
Medical School: Geisel School of Medicine at Dartmouth

Chelsea was raised splitting her time between Norwich, VT and Frankfort, MI. She followed the cold weather to Carleton College in Northfield, MN for her undergraduate degree and earned her MD from the Geisel School of Medicine at Dartmouth in Hanover, NH. She then moved south to complete her residency in internal medicine at Emory University in Atlanta. Overlapping with her research years in the ID fellowship, Chelsea is a post-doctoral bioethics fellow jointly appointed at the Johns Hopkins Berman Institute of Bioethics and the Wellcome Center for Ethics and Humanities at the University of Oxford. Broadly speaking, her research centers on the intersection of global health ethics and infectious diseases. She currently studies equity and fairness within international academic partnerships, with a particular focus on HIV/AIDS research. Outside of medicine, Chelsea and her husband keep themselves busy by learning to boulder climb, investigating the city for the best brunch spot, and continuously talking about (and then not actually) remodeling their rowhome.

Mentors: Larry Chang, MD, MPH and Joe Ali, JD

Diana Zhong, MD
Medical School: University of Pittsburgh School of Medicine

Diana grew up in Maryland, studied biochemistry at the University of Maryland, and earned her MD at the University of Pittsburgh School of Medicine. She did her internship at Washington University in St. Louis, then moved to Seattle to complete her residency at the University of Washington. She worked as an academic hospitalist at the University of Washington for two years before moving back to Maryland for ID fellowship. Her background includes work with tumor immunology at the National Cancer Institute and with the gut microbiome at the University of Pittsburgh. Her current academic interest include public health, vaccinology, and medical education. She is working with Dr. Anna Durbin to study the antibody-dependent enhancement of dengue infection, as well as the cross-reactivity between the dengue and Zika viruses, especially in the context of vaccine development. Outside of medicine, Diana enjoys drawing, designing, writing, cooking and eating, playing and creating games, travel, hiking, and spending time with loved ones, including her Corgi puppy, Marzipan.

Mentor: Anna Durbin, MD

Danica Rockney, MD
Medical School: University of Wisconsin School of Medicine and Public Health

Danica was born and raised in Black River Falls, Wisconsin. She went to both undergrad and medical school at the University of Wisconsin-Madison and is a Badger through and through. After medical school, she moved to Atlanta where she completed her internal medicine residency and chief residency at Emory University. Her research interests are in medical education. Clinically, she is interested in general infectious disease, HIV care, and underserved populations. She has been spending her research time working on medical education scholarship and curriculum development, specifically designing a “Dermatology for the ID Fellowship” curriculum. Outside of medicine, Danica enjoys cooking, hiking, traveling, and cheering on all the Wisconsin sports teams.

Mentor: Michael Melia, MD

Jerald Cherian, MD
Medical School: State University of New York Downstate Medical Center

Jerald grew up in Yonkers, New York and moved to Brooklyn for his undergrad as part of a combined BA/MD program at CUNY Brooklyn College. He subsequently obtained his MD from SUNY Downstate College of Medicine. Jerald then completed his residency training in internal medicine at Vanderbilt University Medical Center. During ID fellowship, he completed additional training through the Johns Hopkins Bloomberg School of Public Health’s Graduate Training Program in Clinical Investigation. Jerald’s academic interest is in the intersection of antimicrobial stewardship and clinical informatics. He is particularly interested in the utilization of large datasets, machine learning analytics, and electronic clinical decision support tools to improve antimicrobial usage and management of patients with infectious diseases. Outside of medicine, Jerald enjoys traveling, hiking, basketball, and baking.

Mentors: Sara Cosgrove, MD and Eili Klein, PhD, MA