This practice is referred to as Mithridatism. Snake venom injections will help develop an increased metabolic tolerance, but this not quite the same as developi

This practice is referred to as Mithridatism. Snake venom injections will help develop an increased metabolic tolerance, but this not quite the same as developing a vaccine. Bill Haast injected himself for years with gradually increasing quantities of snake venom. His blood was able to be used in place of anti-venom. https://en.m.wikipedia.org/wiki/Bill_Haast https://en.m.wikipedia.org/wiki/Bill_Haast