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zeynep's profile
zeynep tufekci
zeynep tufekci
zeynep tufekci
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@zeynep

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zeynep tufekciVerified account

@zeynep

Complex systems, wicked problems. Society, technology, science and more. @UNC professor. @NYTimes columnist. My newsletter is @insight: http://www.theinsight.org 

floating in a most peculiar way
theinsight.org
Joined August 2009

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    1. Bill Hanage‏Verified account @BillHanage 6 Jun 2020

      I may be missing something here but the @WHO advice on masks doesn’t add up as reported here (also paging @bencowling88 who will have more useful things to say on the subject than I do) https://www.theguardian.com/world/2020/jun/05/who-changes-advice-medical-grade-masks-over-60s … 1/n

      6 replies 16 retweets 30 likes
      Show this thread
    2. Bill Hanage‏Verified account @BillHanage 6 Jun 2020

      This implies that ‘medical masks’ should be worn by those at risk, to prevent them becoming infected 2/npic.twitter.com/oKjA1wcUVi

      2 replies 3 retweets 8 likes
      Show this thread
    3. Bill Hanage‏Verified account @BillHanage 6 Jun 2020

      Presumably this is the reason for the difference? The ‘medical masks’ protect the vulnerable from becoming infected while the other masks prevent other people from transmitting ‘if properly used’. But if they prevent transmission why limit their use to the settings specified? 3/npic.twitter.com/5V4ILIRKZ4

      3 replies 3 retweets 17 likes
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    4. Bill Hanage‏Verified account @BillHanage 6 Jun 2020

      And all this ‘if properly used’ - where are the plans to train the vulnerable in the use of higher grade medical masks? Concern is often expressed over false sense of security, more often touching face etc 4/n

      1 reply 0 retweets 11 likes
      Show this thread
    5. Bill Hanage‏Verified account @BillHanage 6 Jun 2020

      Bill Hanage Retweeted Ben Cowling

      I am presuming the research cited is the Chu et al review in @TheLancet. I’m not sure that’s the best source of evidence when it comes to mask use in the community vs healthcare because of training in the latter setting and confounders https://twitter.com/bencowling88/status/1269139370121953280?s=21 … is 5/n

      Bill Hanage added,

      Ben CowlingVerified account @bencowling88
      (1/16) However, I don't follow the argument that the guidance has changed because of new evidence. The evidence has been there all along. I have a few comments on the most recent review in the Lancet https://twitter.com/bencowling88/status/1269076755005861888 …
      Show this thread
      2 replies 1 retweet 7 likes
      Show this thread
    6. zeynep tufekci‏Verified account @zeynep 6 Jun 2020
      Replying to @BillHanage

      zeynep tufekci Retweeted zeynep tufekci

      Note "false sense of security" claim in the guidance has no citations. I briefed this guidance committee on how that worry was not just without evidence, there is evidence to the contrary. Disappointed they still just hand-waved it in. Paper under review:https://twitter.com/zeynep/status/1268935532396130305 …

      zeynep tufekci added,

      zeynep tufekciVerified account @zeynep
      Here's a preprint of a paper (I'm a co-author) where we review the "false sense of security" claim and explain why it doesn't stand to evidence at all, and why, on the contrary, universal masks would be expected to lessen stigma and heighten solidarity. https://www.preprints.org/manuscript/202004.0203/v2 … pic.twitter.com/2tDzvYGNVr
      Show this thread
      3 replies 4 retweets 9 likes
    7. Bill Hanage‏Verified account @BillHanage 6 Jun 2020
      Replying to @zeynep

      Interesting! Thanks for sharing. There’s something about mask use that veers into the ideological

      1 reply 0 retweets 1 like
    8. zeynep tufekci‏Verified account @zeynep 6 Jun 2020
      Replying to @BillHanage

      Indeed! Lack of RCTs are cited as a reason not to mask despite other evidence, but then evidence for harms and worries is all without citations and mostly hand-waving. Then, handwashing for COVID has less RCT evidence but nobody worries about that (but, of course, let's do it!).

      2 replies 1 retweet 8 likes
    9. Bill Hanage‏Verified account @BillHanage 6 Jun 2020
      Replying to @zeynep

      It’s definitely too nuanced for Twitter, but there is something interesting about what counts as evidence, and how to make decisions when you don’t have all the evidence you’d like. RCTs if possible are great, but they’re not the *only* source of evidence.

      2 replies 1 retweet 5 likes
    10. Bill Hanage‏Verified account @BillHanage 6 Jun 2020
      Replying to @BillHanage @zeynep

      (Besides i wonder whether if an RCT were to show masks protected against infection or transmission, it would be criticized as not double blinded)

      1 reply 0 retweets 2 likes
      zeynep tufekci‏Verified account @zeynep 6 Jun 2020
      Replying to @BillHanage

      Agree. That’s why I kept trying to show that much of the evidence of alleged harms, which came under social science topics that have been studied widely, like false security, didn’t hold up at all. Without harms, a low-cost positive looking intervention has lower need for RCTS.

      6:29 AM - 6 Jun 2020
      • 2 Likes
      • Zoë McLaren, PhD Ben Cowling
      1 reply 0 retweets 2 likes
        1. jo‏ @jo_nur_jo 6 Jun 2020
          Replying to @zeynep @BillHanage

          What a strange anachronistic discussion from an asian/and now european perspective. Masks work. Get over it.

          0 replies 0 retweets 0 likes
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