Yes, I've seen the notion floated but never seen much evidence one way or the other. I wish people were less afraid about voluntary self-exposure, we could perf

Yes, I've seen the notion floated but never seen much evidence one way or the other. I wish people were less afraid about voluntary self-exposure, we could perform some really enlightening trials if the ethical go-ahead was given. (Personally, I would volunteer to be exposed to real SARS-CoV-2, but I would not volunteer to be on the receiving end of any vaccine candidates.) Anyway, it's dubious that masks do a great job in decreasing viral load, but I think this another case where if they do the effect size wouldn't be that great. Regardless, this really highlights how we're proposing universal measures for things that are not well researched. I like the approach Sweden has taken: if there's not strong evidence, we just don't do it. Simplifies so much.