How is large parts of the Western world only waking up to the fact masks drastically reduce the spread of this virus?
Here in Hong Kong we've known this since the beginning, and it's why we've only had 4 deaths in total and we don't really have any local transmission at all. I think in the last 2 weeks we've had 1 local case.
I’m glad to hear this. I work in a supermarket and they’ve said they don’t want us wearing masks since there’s apparently no evidence for any benefits. Even if there was no evidence I think something is ultimately better than nothing
There is plenty of evidence: research and empirical. About the latter I'm tracking Czechia and they are doing better and better every day. For them it started improving 10 days after masks were made obligatory. They started at 6-7% infection rate and right now it is around 1% with 2 digits number of new cases daily. 1 month more and there wont be Covid19 in Czechia.
This pisses me off extra because my sister is a PT at an even bigger Boston hospital than the one in the article. She told me to wear a mask in public in mid March, when my friends were all mocking me for asking if I should put one on when I go get groceries. If a random PT in Boston knew, then the CDC absolutely knew and just misled the public. How much could we have slowed this thing down if our leaders had taken it seriously?
If this has an impact anywhere near what is described it would be huge. Covid has an R0 of somewhere around 3-6. Lockdowns in Germany style seems to push R to 0.7-0.9. Partial opening the country now risks a lot. Reducing transmission risk by 50% where people interact would be very welcome. I‘m glad Germany made masks mandatory in many situations over the past few days. Asia has been doing it for a while and seems to be doing a lot better.