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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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    2. Kimberly Prather, Ph.D.‏Verified account @kprather88 20 Dec 2021
      Replying to @dylanhmorris @macroliter and

      I agree...I honestly want to see proof it is mostly close range...with contact tracing, we force that answer, don't we? I have been calling it the streetlamp effect for many months...

      1 reply 0 retweets 25 likes
    3. Jeremy Kamil‏ @macroliter 20 Dec 2021
      Replying to @kprather88 @dylanhmorris and

      Close range transmission OBVIOUSLY important. Many examples in my own life of seeing it happen. Households, work places etc. One unvaccinated person infected my buddy at his job in NYC. Delta infected a whole household of vaxxed friends of ours, after a kid <10 brought it home.

      3 replies 2 retweets 3 likes
    4. zeynep tufekci‏Verified account @zeynep 20 Dec 2021
      Replying to @macroliter @kprather88 and

      Nobody is saying it is not important. Rather, it is: close-range transmission also appears to be dominated by aerosols, and long-range transmission is not only obviously possible, we may be underestimating it due to ascertainment bias in the way we trace cases (see NFL example).

      3 replies 14 retweets 83 likes
    5. zeynep tufekci‏Verified account @zeynep 20 Dec 2021
      Replying to @zeynep @macroliter and

      If close range transmission was also dominated by droplets, there could not be this stark a difference between indoor/outdoor transmission & ventilation would make little to no difference indoors: droplets would ballistically land on people regardless of outdoors or ventilation.

      2 replies 7 retweets 65 likes
    6. zeynep tufekci‏Verified account @zeynep 20 Dec 2021
      Replying to @zeynep @macroliter and

      I have repeatedly asked for anyone to write a theory of how predominantly droplet transmission would explain the facts of the world as we observe it, and remain open to it, starting with why outdoors and ventilation matters. Aerosols as main route fit the known facts very well.

      7 replies 13 retweets 108 likes
    7. zeynep tufekci‏Verified account @zeynep 20 Dec 2021
      Replying to @zeynep @macroliter and

      So "close-range" is a measure of distance, NOT a mode of transmission NOR the size of the particles enveloping the virus, and there is an empirically well-supported theory that fits all the known facts very well: that transmission is predominately airborne via inhaled aerosols.

      4 replies 20 retweets 92 likes
    8. Charles Haas‏ @ProfCharlesHaas 20 Dec 2021
      Replying to @zeynep @jljcolorado and

      Yes, the key operative word is inhalation (portal of entry) not physical characteristic (droplet, aerosol, etc.). Risk comes from virus in inhalable form.

      2 replies 4 retweets 20 likes
    9. zeynep tufekci‏Verified account @zeynep 20 Dec 2021
      Replying to @ProfCharlesHaas @jljcolorado and

      Not for mitigation.

      1 reply 0 retweets 0 likes
    10. Jeremy Kamil‏ @macroliter 20 Dec 2021
      Replying to @zeynep @ProfCharlesHaas and

      How do you mean? Mitigate by (1) preventing or limiting spread / release from sources (masks, vaccines, testing), (2) filtering / sanitizing air in enclosed spaces and (3) preventing inhalation by susceptible (masks)

      3 replies 0 retweets 0 likes
      zeynep tufekci‏Verified account @zeynep 20 Dec 2021
      Replying to @macroliter @ProfCharlesHaas and

      Only certain size particles can float around and concentrate with time rather than dropping immediately with gravity, and thus be susceptible to ventilation and indoor & outdoor differences, and indeed be inhaled. Droplets… drop. Mitigations for floating things aren’t the same.

      1:26 PM - 20 Dec 2021
      • 11 Retweets
      • 46 Likes
      • vaccineaccount37 Democracy Together Ju Nathan Rittenhouse Erin Downes VMD E. Wright Glenn Runnalls Nestor machinalis Erick Beaudry
      3 replies 11 retweets 46 likes
        1. New conversation
        2. zeynep tufekci‏Verified account @zeynep 20 Dec 2021
          Replying to @zeynep @macroliter and

          In fact, that is exactly the heart of the issue and why all this matters so much. Otherwise less crucial.

          1 reply 3 retweets 24 likes
        3. Prof. Jose-Luis Jimenez‏Verified account @jljcolorado 20 Dec 2021
          Replying to @zeynep @macroliter and

          Exactly, which was the point of the original post. By @WHO distributing those gappy cloth masks, they are implying they are safe. When we KNOW that they are not safe against the floating things (aerosols) that DOMINATE transmission and go through the gaps of such masks.

          2 replies 11 retweets 51 likes
        4. Show replies
        1. Charles Haas‏ @ProfCharlesHaas 20 Dec 2021
          Replying to @zeynep @macroliter and

          The risk for #COVID19 is coming from inhalable particles, not ballistic particles (other than in extremely rare — from a community viewpoint— circumstances)

          0 replies 0 retweets 7 likes
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        1. Nestor machinalis‏ @PsionicPsittacc 20 Dec 2021
          Replying to @zeynep @macroliter and

          Nestor machinalis Retweeted Nestor machinalis

          https://twitter.com/PsionicPsittacc/status/1468666166361001984?s=20 …

          Nestor machinalis added,

          Nestor machinalis @PsionicPsittacc
          Replying to @denise_dewald
          1/2 pic.twitter.com/6ns7FFxZRT
          0 replies 0 retweets 0 likes
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