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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. Dr. Angela Rasmussen‏Verified account @angie_rasmussen 13 Jul 2020
      Replying to @angie_rasmussen @ShellyMBoulder and

      This is why the terminology is important, though. This entire issue has been one of communication. Transmission by inhaled droplets/aerosols/particles has been presented to the public as if this is new information when it's not and people are confused about what this means.

      2 replies 0 retweets 6 likes
    2. Prof. Jose-Luis Jimenez‏Verified account @jljcolorado 13 Jul 2020
      Replying to @angie_rasmussen @ShellyMBoulder and

      I am genuinely confused by what you are saying. - WHO talking about ballistic droplets, see video. And "FACT: NOT AIRBORNE". And guidance consistent w/ that, eg STILL NOW masks indoors only if can't keep 1 m distance https://twitter.com/i/status/1244258441880797184 …pic.twitter.com/InVsWjBydp

      1 reply 0 retweets 2 likes
    3. Prof. Jose-Luis Jimenez‏Verified account @jljcolorado 13 Jul 2020
      Replying to @jljcolorado @angie_rasmussen and

      However you seem to say that "transmission by inhaled droplets" (i.e. aerosols) has been known for a while, not new info? - Perhaps internally among researchers? - Also at WHO? Is that why they rec ventilation w/o saying why? Recognize it is real but fear of saying "airborne"?

      1 reply 1 retweet 5 likes
    4. zeynep tufekci‏Verified account @zeynep 13 Jul 2020
      Replying to @jljcolorado @angie_rasmussen and

      Having worked with WHO on this, I concur that they are still only recommending masks indoors *if* one meter distance cannot be maintained in the official guidance, and only recently acknowledged the possibility of any droplet/aerosol may remain "airborne" but stubbornly insist +

      1 reply 0 retweets 5 likes
    5. zeynep tufekci‏Verified account @zeynep 13 Jul 2020
      Replying to @zeynep @jljcolorado and

      that cases like the choir practice and the Guangzhou restaurant etc. could still be fomite or droplet (which they do mean ballistic action but it's muddled). They also say no cases that demonstrate fomite transmission but they still consider it a key transmission mode. Confusing.

      1 reply 0 retweets 6 likes
    6. zeynep tufekci‏Verified account @zeynep 13 Jul 2020
      Replying to @zeynep @jljcolorado and

      I see the practical relevance of this confusion because, for example, colleges are preparing to open indoor spaces with masks, hand-sanitizers and distancing but not a lot of discussion, if any, about the importance of ventilation or recognition that 1-2m indoors isn't absolute.

      4 replies 0 retweets 14 likes
    7. Prof. Jose-Luis Jimenez‏Verified account @jljcolorado 13 Jul 2020
      Replying to @zeynep @angie_rasmussen and

      Agree on that situation. WHO has issued recs on ventilation, our group helped them with those. But ppl don't understand **WHY**, have not made effort to implement, bc it is not clear WHY one would need to do that, if "FACT: NOT AIRBORNE" Once ppl understand, they take seriously!

      1 reply 0 retweets 6 likes
    8. zeynep tufekci‏Verified account @zeynep 13 Jul 2020
      Replying to @jljcolorado @angie_rasmussen and

      The danger there is when people hear "AIRBORNE" many think of that scene in Outbreak when Dustin Hoffman looks up at the vent and realizes that this is going to spread to the whole hospital. This isn't that, nor is it measles, but also not just WHO's initial ballistic droplets.

      4 replies 15 retweets 60 likes
    9. Dr. Saskia Popescu‏Verified account @SaskiaPopescu 13 Jul 2020
      Replying to @zeynep @jljcolorado and

      Agreed- which is why when people were using "airborne" to describe this, the ID folks raised the flag saying "hey...maybe let's not use that term because the public health and healthcare associations with it”.

      1 reply 0 retweets 7 likes
    10. Eli Perencevich, MD MS 🧼  😷‏Verified account @eliowa 13 Jul 2020
      Replying to @SaskiaPopescu @zeynep and

      Both an arrow and a balloon are airborne. Most epidemiology supports arrows and not balloons except rare exceptions. It has been pointed out, the restaurant/air-con example is more like an arrow. Not seeing many balloon examples

      2 replies 0 retweets 10 likes
      zeynep tufekci‏Verified account @zeynep 13 Jul 2020
      Replying to @eliowa @SaskiaPopescu and

      The communicative challenge is "airborne" is associated with mist-like spread, and this isn't that. But WHO droplets only have ballistic trajectories, and this isn't just that either, because clearly, they can be pushed around *a bit* by air currents rather than always dropping.

      8:15 AM - 13 Jul 2020
      • 2 Retweets
      • 4 Likes
      • Fitz S. Geuns-Meyer Stefanie Schulte #GenoVerband Prof. Jose-Luis Jimenez dinza
      1 reply 2 retweets 4 likes
        1. New conversation
        2. zeynep tufekci‏Verified account @zeynep 13 Jul 2020
          Replying to @zeynep @eliowa and

          From my end, I'm focused on the confusing messaging. I don't doubt that the experts can sort it out among themselves, but regular people are confused and I do not have a single consistent guideline to recommend to people. WHO still considers 1m indoors as super strong protection.

          1 reply 0 retweets 6 likes
        3. Dr. Angela Rasmussen‏Verified account @angie_rasmussen 13 Jul 2020
          Replying to @zeynep @eliowa and

          The problem communicating across disciplines bleeds over into the public. If experts from different fields aren't able to understand each other, it makes it tremendously difficult to convey useful and consistent guidance to the general public.

          1 reply 1 retweet 9 likes
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