Jung studies the molecular biology of virus-induced cancers like Kaposis sarcoma and lymphoma, which are the most common cancers among AIDS patients. He investigates host-virus interactions and emerging pathogens like dengue virus, Zika virus, and severe fever with thrombocytopenia syndrome virus. Jungs lab explores the mechanisms and processes behind protective immune response and how cells employ pattern recognition receptors to identify pathogens. He also studies the role of programmed cell death after viral infection. Jung received both his bachelors degree in food science and his masters in food microbiology from Seoul National University. He earned a microbiology PhD from the University of California, Davis, and completed a postdoctoral fellowship in microbiology and molecular genetics at Harvard Medical School. Prior to joining USC, he was professor of microbiology and molecular genetics at Harvard Medical School and professor of biology, of medical science, and of engineering at the Korea Advanced Institute of Science and Technology in Daejeon, South Korea.