Cancer Virus Hunters: A History of Tumor VirologyTraces the history of the study of tumor viruses and its role in driving breakthroughs in cancer research. Worldwide, approximately one fifth of human cancers are caused by tumor viruses, with hepatitis B virus and HPV being the leading culprits. While the explosive growth in molecular biology in the late twentieth century is well known, the role that the study of tumor viruses has played in driving many of the greatest breakthroughs is not. Without