After completing medical school, Yousef pursued a post-doctoral fellowship in Immunology at the laboratory of Raif Geha at Boston Children’s Hospital studying primary immunodeficiency
syndromes and T cell biology.
Following this training, he completed internal medicine residency within the Stanbury Physician Scientist Program at Massachusetts General Hospital (MGH) followed by training in
Gastroenterology at the MGH where his research focused on immune checkpoint related adverse events. Yousef then returned to serve as a Chief Medical Resident in the Internal
Medicine Residency program at MGH.
In the Getz lab, Yousef is studying the role of somatic mutations in a variety of benign gastrointestinal disorders.