Dr. Jay Hoofnagle is director of the Liver Disease Research Branch at the National Institute of Diabetes and Digestive and Kidney Diseases. Stephen Morrissey, the interviewer, is the Executive Managing Editor of the Journal. J.H. Hoofnagle and S.M. Feinstone. The Discovery of Hepatitis C — The 2020 Nobel Prize in Physiology or Medicine. N Engl J Med 2020;