He is particularly interested in tumor immunology and developing cancer vaccines. He runs the Fong Lab which is dedicated to understanding the interaction between the immune system and cancer. Characterizing and quantifying the immune response to antigens in different disease states will be crucial to developing potential vaccine and immunotherapeutic strategies. Currently, his research program is divided into three distinct but interrelated areas of interest. These include studying dendritic cell biology, exploring approaches to break tolerance against self-antigens, and characterizing effector and memory T cells following tumor immunotherapy.