NEW: CDC guidance on masks expected to change in next 10 days. Americans will be advised to wear masks in everyday life. Current recommendation is for high-risk groups only.
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Replying to @DrMattMcCarthy
zeynep tufekci Retweeted zeynep tufekci
I’m going to put my NYT oped on this here with a thread with many answers (What about preserving them for healtcare workers? What about potential harm arguments?). People should start today, with homemade or surgical masks. Keep donating N95s to hospitals.https://twitter.com/zeynep/status/1239903421970501640 …
zeynep tufekci added,
zeynep tufekciVerified account @zeynepFor the@nytimes, I wrote about why health authorities telling people they didn't need masks, and, besides they wouldn't wear them right, misfired and maybe even fueled hoarding. There will be many painful truths, and we need to learn to talk about them. https://www.nytimes.com/2020/03/17/opinion/coronavirus-face-masks.html … pic.twitter.com/vBhEbS2rJkShow this thread17 replies 97 retweets 332 likes -
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One, healthcare workers need the N95s. If you already have one, you can keep wearing that one till it frays BUT does that have a valve? In which case, you aren't doing anyone else any good--that valve is unfiltered so you will continue infecting folks if you're asymptomatic.
2 replies 0 retweets 5 likes -
Replying to @zeynep @theshaofthirst and
valves are only one way airflows not filters? so they “protect you” when you want masks to “protect them” ?
1 reply 0 retweets 0 likes
Yep. Valves are to make it easier for people to wear these when they're using them, say, on construction sites. No filter out. Defeats the purpose of universal mask wearing. In any case, save the N95s for healthcare workers.
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