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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 20 Apr 2020

      We now know *for sure* mass transmission is possible indoors even without coughing/sneezing (pre/asymptomatic). We should all wear masks. I'm not yet seeing many cases of outdoors/surfaces but we should STILL be careful while we wait for studies. Absence of evidence isn't proof.

      8 replies 88 retweets 313 likes
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    2. zeynep tufekci‏Verified account @zeynep 20 Apr 2020

      Also, please note that coughing/sneezing are game changers to the distances we have all been told—especially sneezing—and that's another big reason to recommend universal masks, especially indoors. Many unknowns remain but this we know for sure: CROWDED INDOORS ARE HIGH RISK.

      11 replies 82 retweets 332 likes
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    3. zeynep tufekci‏Verified account @zeynep 20 Apr 2020

      zeynep tufekci Retweeted Justin Gray

      Georgia is considering opening retail, restaurants, nail salons, in-person worship and other indoor places next week. Please feel free to share the study on top of this thread with your friends there: one asymptomatic person in a restaurant infected 10.https://twitter.com/JustinGrayWSB/status/1252330712092590080 …

      zeynep tufekci added,

      Justin GrayVerified account @JustinGrayWSB
      Restaurants will be able to reopen to dine in service and theaters will be able to reopen on Monday April 27
      Show this thread
      8 replies 157 retweets 286 likes
      Show this thread
    4. zeynep tufekci‏Verified account @zeynep 20 Apr 2020

      Check this example flagged by @jeremyphoward in his super useful FAQ on masks. *94* out of 97 cases in a building worked on the same floor! It really suggests transmission through air is much more important than surfaces like elevator/doorknobs. Mask up! https://www.fast.ai/2020/04/20/skeptics-masks/ …pic.twitter.com/XVF9WeJbig

      13 replies 162 retweets 350 likes
      Show this thread
    5. zeynep tufekci‏Verified account @zeynep 21 Apr 2020

      Can't believe this gets published by the BBC, this late! If you're worried masks can be contaminated by other people's cough and sneezes, what do you think happens to YOUR MOUTH AND NOSE IF you aren't wearing a mask? The other two also make no sense.🙄 https://www.bbc.com/news/health-51205344 …pic.twitter.com/PaPnE1490S

      13 replies 69 retweets 268 likes
      Show this thread
    6. zeynep tufekci‏Verified account @zeynep 21 Apr 2020

      This "false sense of security" argument has been trotted out against many safety devices (seat-belts, helmets) and the evidence does not bear it out. No reason/data to think different for face masks. If anything, it's the other way around. See more here: https://www.preprints.org/manuscript/202004.0203/v1 …pic.twitter.com/oIPsKROAuH

      7 replies 67 retweets 224 likes
      Show this thread
    7. zeynep tufekci‏Verified account @zeynep 21 Apr 2020

      zeynep tufekci Retweeted Respectable Ron

      This is actually a great question. A lot of evidence that talking/singing and maybe just breathing around people from close enough range is sufficient to transmit the virus—and if you have a mask on, the amount one sheds is cut down dramatically.https://twitter.com/LucidLeaguing/status/1252654696029982721 …

      zeynep tufekci added,

      Respectable Ron @LucidLeaguing
      Replying to @zeynep
      This might be a silly question, but how does an asymptomatic person produce viral droplets? Are coughing/sneezing not considered symptoms?
      10 replies 57 retweets 221 likes
      Show this thread
    8. zeynep tufekci‏Verified account @zeynep 21 Apr 2020

      zeynep tufekci Retweeted Lydia Bates

      Yep, this actually makes a lot more sociological sense, and the experience of Hong Kong/Taiwan etc. support this: widespread mask wearing *signal* solidarity and importance/reminder of the pandemic, and probably encourage *more* distancing/hygiene as well.https://twitter.com/lydiajo/status/1252656232193720320 …

      zeynep tufekci added,

      Lydia Bates @lydiajo
      Replying to @zeynep
      Purely anecdotally, I don't feel 'safer' wearing a mask (even if I am), I feel more aware of the risks around me. The fact that wearing a mask isn't comfortable is a constant reminder that my environment is potentially hazardous. My mask reminds me that things are not normal.
      10 replies 87 retweets 339 likes
      Show this thread
    9. zeynep tufekci‏Verified account @zeynep 24 Apr 2020

      Another crucial study showing how dangerous indoor situations can be. An alarming 94 (out of 216) people on the same floor in a call center in Korea got infected—an attack rate of 43.5%! But look at the schema. Most infections are on one side of the room. https://wwwnc.cdc.gov/eid/article/26/8/20-1274_article …pic.twitter.com/JQsVnDGtA2

      69 replies 1,178 retweets 1,790 likes
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    10. David Dellanave‏Verified account @ddn 24 Apr 2020
      Replying to @zeynep

      to me this also leads credence to thinking outdoor spaces are much safer. If this was the A/C pattern it means you needed a lot of consistent “dosing” to get enough. Not happening in a park or on trails.

      10 replies 19 retweets 134 likes
      zeynep tufekci‏Verified account @zeynep 24 Apr 2020
      Replying to @ddn

      Yes, we've had an increasing number of epi/virology people joining this conversation. Despite months of tracing, we have very few confirmed cases of outdoors transmission, and those involve talking together at length. Of course we should still be sensible.https://www.theatlantic.com/health/archive/2020/04/closing-parks-ineffective-pandemic-theater/609580/ …

      8:53 AM - 24 Apr 2020
      • 97 Retweets
      • 266 Likes
      • Patti Feliciano 😃🧢 blastnost Quoth the Raven El-Leanor Benjamin Melançon CosmicGardening Rick Yoesting Daniel Friedrich lili Leon Loubser
      4 replies 97 retweets 266 likes
        1. New conversation
        2. Sjors Provoost‏ @provoost 24 Apr 2020
          Replying to @zeynep @ddn

          It would be great to get an overview of known outdoors transmission events, and details like how close people were, if they touched / talked. My own municipality Utrecht closed footpaths that are less than 1.5 meters wide, out of fear that briefly passing someone can infect you.

          1 reply 3 retweets 14 likes
        3. jdevans14‏ @jdevans141 24 Apr 2020
          Replying to @provoost @zeynep @ddn

          Why would they do that and then tell everyone that masks aren’t needed, assuming their policy is the same as the national government?

          0 replies 0 retweets 3 likes
        4. End of conversation
        1. Angela King - Public Health & Philosophy‏ @mastweiler8 24 Apr 2020
          Replying to @zeynep @ddn

          I've been trying to track down confirmed cases of outdoor transmission but not found any details online. Can you point me to any? Epi student Btw.

          0 replies 0 retweets 0 likes
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        1. Angela King - Public Health & Philosophy‏ @mastweiler8 24 Apr 2020
          Replying to @zeynep @ddn

          Maybe thinking about farts would help ppl visualise safer situations. Avoid lifts and poorly ventilated rooms. Fart molecules likely far more mobile than virus. PhD topic for biophysicist? 😂

          0 replies 0 retweets 1 like
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