Jisun Sung was born in Daejeon, South Korea. She graduated from Sungkyunkwan University School of Medicine in 2006 with a M.D. degree, and received a residency training in the Department of Family Medicine at Samsung Medical Center in Seoul. She worked for 5 and a half years as a family physician at Total Healthcare Center of Kangbuk Samsung Hospital in Suwon. She entered the Ph.D. program at the Graduate School of Sungkyunkwan University from September 2018 majoring in preventive medicine. She is interested in preventive medicine, public health, and epidemiology in general, and her research fields are mainly environmental epidemiology and infectious disease epidemiology.