That's nonsense. How are you going to blind people to whether they're wearing a mask or not? There's already a lot of evidence supporting the use of mask to pro

That's nonsense. How are you going to blind people to whether they're wearing a mask or not? There's already a lot of evidence supporting the use of mask to protect the wearer and to protect transmission of infection from the wearer ("source control") both in healthcare and in community settings. We wrote a sort of mini-review on this recently: https://medium.com/@matthiassamwald/promoting-simple-do-it-yourself-masks-an-urgent-intervention-for-covid-19-mitigation-14da4100f429 https://medium.com/@matthiassamwald/promoting-simple-do-it-y...