On the Origins of Herd Immunity By Vincent Iannelli, MD / February 19, 2020 February 19, 2020 / Adolph Eichhorn, brucellosis, George M. Potter, GS Wilson, herd immunity, Major Greenwood, natural herd immunity, Paul Fine, RR Birch, Topley When did we start talking about herd immunity? Share this:FacebookTwitterRedditPrintLinkedInPinterestEmailTumblrWhatsAppLike this:Like Loading...