glacierre2

glacierre2 t1_j2ffyv6 wrote

The problem is not fish dying from mercury poisoning (I mean, that would be a problem, a really big one). Much before the levels required for that, the fish may have for example brain damage, which is not such a big deal for fish, but an equivalent in humans render you invalid to carry out a normal life.

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glacierre2 t1_ivo51lz wrote

If it is the first time, the body will take some time to make specific anti-antibodies, the antivenom has plenty of time to bind to the poison.

On a future second time (specially if the first was recent) you could get a race between the kinetics of your anti-antibodies binding the antivenom and the antibodies binding the poison. I would expect it would still work, but with decreased effect.

Finally, and this is the way that it always works, the poison + antibodies (yours or external) end up making a bigger clump that is consumed by cells of the immune system (macrophages), so ultimately you always get an immune response (but that does not necessarily mean an allergic reaction)

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