First Year Fellows

Emily Hoff, MD
Medical School: Yale School of Medicine
Residency: University of Texas Southwestern

Emily is originally from Ann Arbor, MI. She completed her undergraduate studies at Middlebury College and medical school at Yale School of Medicine. She then went to University of Texas Southwestern for residency and stayed for a chief resident year. Her interests are in the overlap of infectious diseases and addiction with a focus on justice-involved populations and women’s health. Long term, Emily plans to be a clinical investigator, implementing patient-centered care for people experiencing infectious complications of substance use. Outside of medicine, Emily enjoys spending her free time going on adventures, from discovering the next best restaurant to the best hiking path, with her family: her husband, a Med-Peds Hematology fellow; her son; and Alle, her fur baby.

Ruth Howe, MD
Medical School: Albert Einstein College of Medicine
Residency: University of Washington, Seattle

Ruth grew up in the Appalachian Mountains and entered the research world via plant genetic engineering with the Virginia Bioinformatics Institute. She majored in molecular biology and biochemistry at Washington University in St. Louis, where she worked in the theater, a gene therapy lab, and as a medical ESL instructor with Virginia Tech. She stayed at WashU to study the malaria parasiteĀ Plasmodium falciparumĀ with Dr. Audrey Odom and fell in love with infectious disease research. Ruth then moved to the MSTP program at the Albert Einstein College of Medicine in the Bronx, where she completed her MD and a PhD working in oncology. Eager to return to infectious disease research, she then did an ABIM fast track residency at University of Washington in Seattle prior to entering fellowship at Hopkins. Along the way, she had many odd jobs, including working with ex-racehorses, playing in Celtic and mariachi bands, and doing anatomical illustration for research journals. Outside of medicine, Ruth enjoys rock climbing, sword fighting, the great outdoors, painting, making music, and playing collaborative board games.

Jillian Peters, MD
Medical School: The Warren Alpert Medical School of Brown University
Residency: Johns Hopkins

Jillian grew up in New Hampshire, where she learned to love the outdoors. She graduated from Harvard University with a degree in neurobiology, while also pursuing her interest in bioethics. After college, she worked as a healthcare consultant for Clarion Healthcare. She then attended medical school at Brown University, where she also studied global health. Jillian is passionate about emerging and zoonotic pathogens, and much of her research has been on Ebola virus disease. She completed internal medicine residency at Johns Hopkins and is excited to be continuing her training at Hopkins in Infectious Diseases.


Sima Sharara, MD
Medical School: American University of Beirut Faculty of Medicine, Lebanon
Residency: Johns Hopkins

Sima grew up in Beirut, Lebanon. She completed her undergraduate studies at UNC Chapel Hill before returning to Lebanon for medical school at the American University of Beirut. She completed a two-year postdoctoral fellowship in antibiotic stewardship and HEIC at the Johns Hopkins Hospital and has never left since! She completed her internal medicine residency training at JHH and is excited to be staying at Hopkins for ID fellowship. Outside of medicine, Sima enjoys playing volleyball, trying new restaurants and coffee shops, and traveling.

Second Year Fellows

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

Mentors: Emily Kendall, MD, PhD, and Kelly Gebo, MD, MPH

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

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.

Mentors: Robin Avery, MD; Nate Permpalung, MD, MPH; Christine Durand, MD; and Sean Zhang, MD, PhD


Sean Anderson, MD
Medical School: Medical College of Wisconsin
Residency: University of Chicago

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 was retired by the Windy City Red Sox).

Mentor: Cindy Sears, MD

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

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.

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

Third Year Fellows

Luis Gonzalez Corro, MD
Medical School: Latin American School of Medicine
Residency: Montefiore Medical Center/Albert Einstein College 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
Residency: LSU Health, Baton Rouge

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
Residency: University of Chicago

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
Residency: Jacobi Medical Center/Albert Einstein 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