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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. zeynep tufekci‏Verified account @zeynep 13 Apr 2020

      I'm a co-author (one among many) on this new paper reviewing and synthesizing the strong scientific evidence for how universal masking can reduce transmission (source control) and greatly dampen the spread of COVID-19. It's under review. Preprint here: https://www.preprints.org/manuscript/202004.0203/v1 …pic.twitter.com/Q6CFBfUNgc

      28 replies 661 retweets 1,282 likes
      Show this thread
    2. Steven Sinofsky‏Verified account @stevesi 25 Apr 2020
      Replying to @zeynep

      Steven Sinofsky Retweeted Steven Sinofsky

      Thank you. Back in Feb I located a few pubmed papers mask research that were somewhat more mixed than I think this summary indicated. Here are some of the ones I found along those lines. Only one of these was referenced and one is later work from same.https://twitter.com/stevesi/status/1241777944202104832?s=20 …

      Steven Sinofsky added,

      Steven SinofskyVerified account @stevesi
      Replying to @_lordmax_ @naval
      Many studies on masks. Not clear at all. Req many conditions to be met. Some… https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2662657/ … https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5779801/ … https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3536629/ … https://www.ncbi.nlm.nih.gov/pubmed/19193267  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2984432/ … https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4420971/ … https://academic.oup.com/jid/article/201/4/483/860983 … https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2818714/ …
      2 replies 0 retweets 4 likes
    3. zeynep tufekci‏Verified account @zeynep 25 Apr 2020
      Replying to @stevesi

      We never had solid studies on community use (most good studies focused on ingress rather than community use, see difference here https://www.theatlantic.com/health/archive/2020/04/dont-wear-mask-yourself/610336/ …) but even what studies we have (many with low compliance/not good controls) supported some benefits for reducing transmission.

      1 reply 6 retweets 7 likes
    4. zeynep tufekci‏Verified account @zeynep 25 Apr 2020
      Replying to @zeynep @stevesi

      Our argument is not about individual level protections (like almost every study before) but community level reduction of transmissibility—a public good, not as much an individual one. That can only be studied properly with high compliance, but you can still assemble evidence.

      2 replies 3 retweets 6 likes
    5. zeynep tufekci‏Verified account @zeynep 25 Apr 2020
      Replying to @zeynep @stevesi

      To argue for universal masks, we had evidence of asymptomatic contagion; evidence of reducing egress ( like this: https://www.nejm.org/doi/full/10.1056/NEJMc2007800 …) and preponderance of evidence it won't create harm (I found no precedent or reasonable argument for harm) and then we model.

      4 replies 2 retweets 4 likes
    6. zeynep tufekci‏Verified account @zeynep 25 Apr 2020
      Replying to @zeynep @stevesi

      Plus, we now have four very interesting cases. HK (masks doing heavy-lifting but some other interventions); Taiwan (case study in everything right); Japan (only masks right everything else wrong: slower spread); Singapore (everything but masks great; didn't work, they switched).

      1 reply 1 retweet 7 likes
    7. zeynep tufekci‏Verified account @zeynep 25 Apr 2020
      Replying to @zeynep @stevesi

      zeynep tufekci Retweeted zeynep tufekci

      Plus, we have cases like this and some new countries like Czech Republic that are seeing lower rates of deaths and cases after switching to all masks.https://twitter.com/zeynep/status/1253348619538890753 …

      zeynep tufekci added,

      zeynep tufekciVerified account @zeynep
      Hospitals are very high-risk environments. Sick people concentrate there and staff can't distance. After Brigham and Women's Hospital required everyone, including patients, to wear masks staff infections dropped from 12-14 new infections per day to only 6. https://www.wbur.org/commonhealth/2020/04/23/brigham-and-womens-masks-infections … pic.twitter.com/Rrlj4CZu2T
      Show this thread
      2 replies 1 retweet 3 likes
    8. Steven Sinofsky‏Verified account @stevesi 25 Apr 2020
      Replying to @zeynep

      This particular case has been widely discussed as correlation v causation.

      1 reply 0 retweets 0 likes
      zeynep tufekci‏Verified account @zeynep 25 Apr 2020
      Replying to @stevesi

      Czech one? Sure, but correlation is a strong signal for possible causation. Given everything else, if I had to bet, I'd bet this was causation. (Though always possible you find something later on, but this isn't the only case like this).

      3:54 PM - 25 Apr 2020
      1 reply 0 retweets 0 likes
        1. Steven Sinofsky‏Verified account @stevesi 25 Apr 2020
          Replying to @zeynep

          That's why the Japan study is interesting. Sometimes you don't have to bet and can do better research.

          0 replies 0 retweets 1 like
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