Posted on March 26, 2020Defining the Epidemiology of Covid-19 — Studies Needed Defining the Epidemiology of Covid-19 — Studies Needed Marc Lipsitch, D.Phil., David L. Swerdlow, M.D., and Lyn Finelli, Dr.P.H. https://www.nejm.org/doi/full/10.1056/NEJMp2002125 Share this:FacebookTwitterLinkedInReddit