Dr. Jill Koshiol is a Senior Investigator in the Infections and Immunoepidemiology Branch of the Division of Cancer Epidemiology and Prevention. She focuses on biliary tract cancers, which are linked to both infections and inflammation. Biliary tract cancers are rare in much of the world, but there are hotspots where these cancers constitute a major public health burden. Immune response is likely central to the carcinogenesis process. By elucidating the epidemiology of biliary tract cancers, Dr. Koshiol hopes to identify new opportunities for cancer prevention and early detection that can be translated into public health impact, particularly in high-risk populations.