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by refurb 995 days ago
No not really.

Infection is binary or not. You either get exposed to enough to actually result in replication inside your body or you don't. If you get exposed to a small amount and your immune system immediately eliminates it, that's not an infection.

The amount of exposure needed to actually cause an infection is different from person to person depending on their immediate immune response.

But it's not like reducing exposure by 50% reduces disease severity by 50%. Biology doesn't work that way.