Prof. Michelle Mello is a professor of law and of health policy at Stanford University. Guy Palmer is chair in global health and a professor of pathology and infectious diseases at Washington State University. Stephen Morrissey, the interviewer, is the Executive Managing Editor of the Journal. M.M. Mello, J.S. Meschke, and G.H. Palmer. Mainstreaming Wastewater Surveillance for Infectious Disease. N Engl J Med 2023;