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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 18 Apr 2021

      zeynep tufekci Retweeted ɪᴀɴ ᴍ. ᴍᴀᴄᴋᴀʏ, ᴘʜᴅ  🦠 🤧 🧬 🥼 🦟 🧻 🧙‍♂️

      I want to add two things that I see confused/claimed. First, see this thread and the paper itself where we explicitly discuss whether the predominance of close contact transmission implies gravity-driven droplet transmission is primary or even a lot.https://twitter.com/MackayIM/status/1383370706843410433 …

      zeynep tufekci added,

      ɪᴀɴ ᴍ. ᴍᴀᴄᴋᴀʏ, ᴘʜᴅ  🦠 🤧 🧬 🥼 🦟 🧻 🧙‍♂️Verified account @MackayIM
      The fact that most respiratory virus infections happen when people spend time close together, doesn't automatically imply ballistic droplets are the main route of transmission. I'd just like this said more clearly. There are those who can't grasp this or
      Show this thread
      1 reply 9 retweets 46 likes
      Show this thread
    2. zeynep tufekci‏Verified account @zeynep 18 Apr 2021

      This paper looks at totality of observed data and evidence from past year, and argues why aerosol-transmission as primary route can parsimoniously explain it all, while droplets as primary route contradicts key parts of the evidence. I'd love to read the opposite case if written.

      2 replies 6 retweets 67 likes
      Show this thread
    3. zeynep tufekci‏Verified account @zeynep 18 Apr 2021

      Second: I keep seeing claims that if it's aerosols, that means cloth or surgical masks are useless, and also what's called "droplet precautions" are useless. The aerosol experts have written so many papers on why that's not the case, and, in any case, that's not what we observe.

      10 replies 14 retweets 119 likes
      Show this thread
    4. zeynep tufekci‏Verified account @zeynep 18 Apr 2021

      The paper, while word-limited, does go into both of these topics, but as with any shift like this, I agree the implications deserves more attention/explanation, and hopefully more soon, partly because part of the problem were some flawed assumptions in multiple directions.

      2 replies 3 retweets 52 likes
      Show this thread
    5. zeynep tufekci‏Verified account @zeynep 18 Apr 2021

      And, this doesn't bind my co-authors, but I think our evidence-base is stronger for discriminating between droplets vs. aerosols, but not as much for fomites especially through resuspension etc. No, not washing groceries but.. I'd wipe down high-touch surfaces in crowded indoors.

      8 replies 10 retweets 124 likes
      Show this thread
    6. zeynep tufekci‏Verified account @zeynep 18 Apr 2021

      zeynep tufekci Retweeted Борис Баденов

      We briefly address this (word limit!😖) but it's not correct to assume that airborne transmission necessitates either a high R0 like measles or even a uniform transmission pattern. Tuberculosis is airborne but has lowish R0—but likely also overdispersion!https://twitter.com/bobby_dread/status/1383787373134184450 …

      zeynep tufekci added,

      Борис Баденов @BorisBadenov999
      Replying to @zeynep @jljcolorado
      What lesson, may I ask, stems from the Diamond Princess cruise ship then, relating to your findings? If indoor aerosol transmission is predominant, why didn’t everyone get it? T-cell immunity & co-morbidity factors? Thank you. https://en.m.wikipedia.org/wiki/COVID-19_pandemic_on_Diamond_Princess … pic.twitter.com/nmDPZsBnTd
      4 replies 5 retweets 57 likes
      Show this thread
    7. zeynep tufekci‏Verified account @zeynep 18 Apr 2021

      zeynep tufekci Retweeted Linsey Marr

      Another good addition for people following this topic is Dr. @linseymarr, a true pioneer in this field (her latest in @bmj_latest, also out this week(!), was titled "Covid-19 has redefined airborne transmission").https://twitter.com/linseymarr/status/1382842521286549508 …

      zeynep tufekci added,

      Linsey MarrVerified account @linseymarr
      Yes, the "airborne route is likely to be dominant." https://twitter.com/EricTopol/status/1382825519171833859 …
      1 reply 13 retweets 66 likes
      Show this thread
    8. zeynep tufekci‏Verified account @zeynep 18 Apr 2021

      zeynep tufekci Retweeted Linsey Marr

      And just putting this thread here so people can get some context of how difficult it has been, for so long, to make progress.https://twitter.com/linseymarr/status/1383066390136041477 …

      zeynep tufekci added,

      Linsey MarrVerified account @linseymarr
      Replying to @zeynep @j_g_allen and 4 others
      YES! Welcome to my world for the past 13 years. So incredibly at odds with current scientific understanding! I have been going around saying that the medical textbooks are wrong, and people think I'm weird...which I am.
      2 replies 9 retweets 83 likes
      Show this thread
    9. zeynep tufekci‏Verified account @zeynep 19 Apr 2021

      Feels like an inflection point. Do read what the article linked by Dr. Karan argues: that short-range (close contact) transmission of respiratory infections is also PRIMARILY aerosols—goes against decades of claims of aerosols only/mostly being long-range. https://twitter.com/AbraarKaran/status/1384240928873844742 …pic.twitter.com/xvf2bQeES8

      8 replies 52 retweets 146 likes
      Show this thread
    10. Aaron Richterman, MD‏ @AaronRichterman 19 Apr 2021
      Replying to @zeynep

      This is why many of us are in favor of doing away with most of the terminology altogether and sticking to respiratory transmission.

      1 reply 1 retweet 14 likes
      zeynep tufekci‏Verified account @zeynep 19 Apr 2021
      Replying to @AaronRichterman

      A terminology update might help. Important to get the right size established though, because it has a lot of implications and helps correct errors. (Droplets precautions aren’t useless, for example, but don’t imply dominance of >100 micron particles propelled by gravity).

      2:46 PM - 19 Apr 2021
      • 1 Retweet
      • 10 Likes
      • Natanael, tech custodial engineer Quang Nguyen Prof. Jose-Luis Jimenez Andrea Cassidy John Panzer 🦕 🐌 🐚 🏺 💀 Sigdrifr 🍄🐉 🍸 Deirdre Connolly¹ J
      1 reply 1 retweet 10 likes
        1. New conversation
        2. zeynep tufekci‏Verified account @zeynep 19 Apr 2021
          Replying to @zeynep @AaronRichterman

          (I’m inundated now with mail from places like India and Turkey that are going through major surges that are being met with plexiglass, closing parks, curfews, little to no mention of ventilation... Distance is seen as binary, as one would assume with gravity-propelled droplets.)

          1 reply 0 retweets 7 likes
        3. Aaron Richterman, MD‏ @AaronRichterman 19 Apr 2021
          Replying to @zeynep

          Wont argue abt lots of effort being spent on inefficient transmission prevention with little to no marginal benefit. Isn’t one point, though, that most respiratory viral transmission through same inhalational mechanism? +/- contact component & w varying efficiencies at distance?

          1 reply 0 retweets 3 likes
        4. Show replies

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