Ferric C. Fang, MD, is a Professor of Laboratory Medicine and Pathology, Microbiology, Medicine, and Global Health at the University of Washington School of Medicine, Director of the Clinical Microbiology Laboratory at Harborview Medical Center, and a former Editor-in-Chief of Infection and Immunity. Arturo Casadevall, MD, Ph D, is a Bloomberg Distinguished Professor and Chair of Molecular Microbiology and Immunology at the Johns Hopkins Bloomberg School of Public Health, a Professor of Medicine at the Johns Hopkins School of Medicine, and the Editor-in-Chief of m Bio.