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[–]Node 3 insightful - 1 fun3 insightful - 0 fun4 insightful - 1 fun -  (1 child)

It's a virus that's in our environment. The idea is to have an immune system that can fight off viruses, as your asymptomatic friend did.

[–]AcceleratedWallops 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (0 children)

If only there was something that could train an immune system to defend against a virus without actually getting it 🤔