One man’s immunity paves the way for a universal snake antivenom: Scientists have used antibodies from the blood of Tim Friede, a man who deliberately exposed himself to venomous snakebites, to develop a potential universal antivenom effective against multiple deadly species, according to a study in Cell. Over nearly two (2) decades, Friede built immunity by injecting himself with 650 doses of venom and enduring roughly 200 bites from 16 deadly snake species, experiencing severe reactions like anaphylaxis, hives and blackouts along the way.