According to fauci, none. But people seem to forget that interview in march.

Been having this debate on some MacRumors forums for the past few days. Its "clear" to them that it does huge benefit and I can't seem to get through to them. Not that I'm surprised but I'm hoping my documentation might sway some of the onlookers.

“A visual signal of unquestioning compliance” beautifully stated. I’m so tired of seeing people wearing face diapers. The air is fine, just don’t get up in someone else’s face. What a bunch of sheep.