Myron S Cohen1, Lawrence Corey2. 1. Myron S. Cohen is a professor in the Department of Medicine, Division of Infectious Diseases, and The Institute for Global Health and Infectious Diseases at the University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. mscohen@med.unc.edu. 2. Lawrence Corey is a professor in the Vaccine and Infectious Disease Division at the Fred Hutchinson Cancer Research Center, Seattle, WA, and a Professor of Laboratory Medicine and Medicine at the University of Washington, Seattle, WA, USA. lcorey@fredhutch.org.