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Second Year Fellows

Sara Karaba, MD, PhD

Undergraduate: University of Maryland
Medical School, Grad Year: Northwestern University, 2015
Residency: Johns Hopkins, 2018

Sara grew up in Maryland, and obtained her BS in Microbiology from the University of Maryland.  She then continued her education at Northwestern University where she was part of the Medical Scientist Training Program, earning her MD and PhD.  Her PhD research focused on type II protein secretion and recreated proteases in Stenotrophomonas maltophilia.  She then moved to Baltimore and completed internal medicine residency in the Osler Medical Training Program at the Johns Hopkins Hospital.  


Jessica Queen, MD

Undergraduate: Simmons College
Medical School, Grad Year: Northwestern University, 2015
Residency: New York Presbyterian Hospital, 2018

Jessica grew up in Maryland in southern Anne Arundel County. She obtained her BS in Biochemistry at Simmons College in Boston. After college, she spent a year conducting research at the NIH through the post-bacc I.R.T.A program. She then pursued her MD/PhD at Northwestern University in Chicago, where she conducted her thesis research in the lab of Dr. Karla Satchell on the interplay of secreted toxins of Vibrio cholerae with the innate immune system. She then completed her residency in Internal Medicine at Weill Cornell – New York Presbyterian Hospital. Her academic interests include tropical medicine, pathogenesis, host-pathogen interactions, and mentorship of underrepresented communities in medicine and science.


Saman Nematollahi, MD

Undergraduate: University of Arizona
Medical School, Grad Year: University of Arizona College of Medicine, 2015
Residency: New York Presbyterian / Columbia University Irving Medical Center, 2018

Saman grew up in Tucson, Arizona. He completed his undergrad at the University of Arizona with dual degrees in Physiology and Spanish Literature. He spent some time after undergrad working in a neuroscience lab before starting med school at the University of Arizona. He then moved to NYC where he completed residency at Columbia. His clinical interests include management of immunocompromised hosts, and his research interest is in medical education. He loves to play soccer with his wife and son.  


Nicole Skinner, MD, PhD

Undergraduate: University of Virginia
Medical School, Grad Year: University of Minnesota Medical School, 2015
Residency: Beth Israel Deaconess Medical Center, 2018

Nicole grew up in northern Virginia, just outside of Washington, DC. After obtaining her BA in neuroscience from the University of Virginia, she became interested in immunology and spent a year as an NIH post-baccalaureate fellow working on graft-versus-host disease. She then moved to Minneapolis/St. Paul and joined the University of Minnesota MD/PhD program, earning her PhD in immunology studying CD8+ T cell responses to DNA vaccines. Following the MD/PhD program, she completed her Internal Medicine residency at Beth Israel Deaconess Medical Center in Boston. Her current research interests involve characterization of adaptive immune responses to infection in humans.