Dr Brian Ardis, a Covid critic, has caused a “storm” of controversy with his claim that the Covid spike protein is related, if not derived from snake venom. And, to top it off, apparently this venom has been put in water supplies, much the way hippies in the 1960s threatened to put LSD in the water supply, until they actually went to a reservoir and saw how big these things were. Anyway, the needed material is sited below. Briefly, these is no strong evidence from a molecular biological perspective linking SASR-CoV-2 to snake venom, even though there are similar effects in some aspects. But all toxins have some effects in common, and this does not prove identity.
https://www.infowars.com/posts/venom-theory-is-covid-19-being-spread-via-drinking-water/