Are masks really as good as I think they are? Yes they are, and this isn’t based on any single study. It’s based on a long train of evidence, summarized here by Jeremy Howard, a research scientist at the University of San Francisco. If you’re skeptical about masks, I urge you to click the link and read the whole thread. In the meantime, here’s a short excerpt:
So do these non-medical masks we’re all meant to be wearing actually do anything?
Well yes, yes they almost certainly do. Here’s a thread about the current science.
Let’s start by explaining this striking picture of a researcher speaking in a laser scattering chamber.
1/n pic.twitter.com/pm6kA8k0cw— Jeremy #Masks4All Howard (@jeremyphoward) June 19, 2020
So if masks look so good on paper, do they work in practice? They sure seem to!
In countries with universal mask-wearing, per-capita coronavirus mortality increased by just 5.4% each week compared with 48% each week in remaining countrieshttps://t.co/hh8wRtyf9k pic.twitter.com/qReHvo6U57
— Jeremy #Masks4All Howard (@jeremyphoward) June 19, 2020
We covered an additional 106 references in our evidence review, “Face Masks Against COVID-19”, including discussing sociological and other factors.https://t.co/G8e6NngcuZ
— Jeremy #Masks4All Howard (@jeremyphoward) June 19, 2020
