"Pretty good" isn't good enough for this sort of thing though.

If you care about contracting coronavirus, if for you infection is a death sentence, then you need something daft like a 99.9999% certainty that people and things you interact with aren't carrying the virus, and that doesn't just include their nasal passages; it means them not having it on their hands, or on their clothes, or whatever else.

In the real world, outside of these hyper corporate events, most people I know who aren't vulnerable just take basic measures because if we get the virus it'll probably be fine.

But that's not good enough if you're selling snake oil.