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zeynep tufekci
zeynep tufekci
zeynep tufekci
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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 8 May 2021

      The central statement of the group is: “The transmission of the SARS-CoV-2 viruses takes place almost without exception indoors.” ht @BernieCornfeldhttps://www.thelocal.de/20210412/danger-lurks-inside-german-aerosol-experts-say-covid-restrictions-should-target-indoor-areas/ …

      12 replies 204 retweets 545 likes
      Show this thread
    2. zeynep tufekci‏Verified account @zeynep 9 May 2021

      zeynep tufekci Retweeted Ty Schalter

      This isn’t exactly true though, for this. Once aerosol transmission is correctly understood, it actually *unlocks* effective mitigations, especially since SARS-CoV-2 is overdispersed (either superspreadering OR low transmission). Aerosol recognition shows us its chokepoints.https://twitter.com/tyschalter/status/1391386430572797957 …

      zeynep tufekci added,

      Ty SchalterVerified account @tyschalter
      I remember being weirded out by this at the very beginning. Everything I was reading was like, "If it's droplets, we'll want to wipe down surfaces and avoid touching our faces. If it's aerosols...well, if it's aerosols we're SCREWED, so it CAN'T be that" https://twitter.com/zeynep/status/1390738628528201735 …
      8 replies 52 retweets 262 likes
      Show this thread
    3. zeynep tufekci‏Verified account @zeynep 9 May 2021

      zeynep tufekci Retweeted Joanna Teglund  😷  🪟 Don't get infected #ZeroCovid

      I just want to keep highlighting that there are very few confirmed outdoor transmission cases at all, and they are mostly in the context of prolonged *and* really close contact AND that the science of aerosol transmission makes it very clear why outdoors is so so much safer.https://twitter.com/JoannaTeglund/status/1390681712682749952 …

      zeynep tufekci added,

      Joanna Teglund  😷  🪟 Don't get infected #ZeroCovid @JoannaTeglund
      Replying to @IvaWest_SE @KBIvarsson and 3 others
      Outdoors isn't safe, but you can minimize the risk keeping distance and using masks. There are special masks for singers. https://twitter.com/JoannaTeglund/status/1390390342239858695 …
      15 replies 127 retweets 485 likes
      Show this thread
    4. zeynep tufekci‏Verified account @zeynep 10 May 2021

      zeynep tufekci Retweeted Eric Topol

      My piece on the history and the context of the debate over aerosol transmission is out in print today in the New York Times. (Online is longer and linked below, print is shorter!): https://www.nytimes.com/2021/05/07/opinion/coronavirus-airborne-transmission.html …https://twitter.com/EricTopol/status/1391642044167196675 …

      zeynep tufekci added,

      Eric TopolVerified account @EricTopol
      A masterpiece in print 🙏 @zeynep pic.twitter.com/60Drai5ikJ
      Show this thread
      4 replies 45 retweets 146 likes
      Show this thread
    5. zeynep tufekci‏Verified account @zeynep 10 May 2021

      So much gratitude to @avizvizenilman and @isaacscher who provided incredible research assistance. The piece was fact-checked within an inch of its life over many days, and it's the tip of an iceberg in terms of the research and documentation that went into it.

      2 replies 6 retweets 79 likes
      Show this thread
    6. zeynep tufekci‏Verified account @zeynep 10 May 2021

      zeynep tufekci Retweeted Prof. Jose-Luis Jimenez

      Look at this incredible thread by @jljcolorado on the history of aerosol denial/misunderstandings/errors. I put (what I could fit) to highlight this. There's something to say about individual conduct during all this—but also that this is a longer history.https://twitter.com/jljcolorado/status/1391111720526024708 …

      zeynep tufekci added,

      Prof. Jose-Luis JimenezVerified account @jljcolorado
      1/ TIME FOR SOME AIRBORNE + DROPLET HISTORY Now that @WHO and @CDCgov have finally accepted *after a year of denial and delays* that airborne transmission is a major mode for COVID-19, it is time to review the history to try to understand why this response was so poor.
      Show this thread
      3 replies 63 retweets 177 likes
      Show this thread
    7. zeynep tufekci‏Verified account @zeynep 10 May 2021

      The history matters. Top medical journals still publish errors about aerosol size and biomechanics. Not individual malfeasance. The errors are in the textbooks. Medical doctors are not biophysicists or aerosol engineers. Dismissing relevant expertise has been, sadly, very costly.

      1 reply 45 retweets 211 likes
      Show this thread
    8. zeynep tufekci‏Verified account @zeynep 10 May 2021

      The other part is how causal inference differs by field. Clinical practice rightly uses randomized trials (crucial for drugs and vaccines) but the clear point that the droplet theory didn't do a good job explaining the world as we observed it didn't get the attention it deserved.

      3 replies 15 retweets 126 likes
      Show this thread
    9. zeynep tufekci‏Verified account @zeynep 10 May 2021

      Overlooked but key. Nothing about transmission in this pandemic makes sense except in the light of overdispersion. It alternates between contagious clusters and little to no transmission. This makes causal inference difficult. It fries our assumptions. https://www.theatlantic.com/health/archive/2020/09/k-overlooked-variable-driving-pandemic/616548/ …pic.twitter.com/nygPqC3yzn

      5 replies 29 retweets 130 likes
      Show this thread
    10. zeynep tufekci‏Verified account @zeynep 10 May 2021

      zeynep tufekci Retweeted Iris Pangburn

      Yes, around the world, to this day. And the constant overuse of bleach etc. is not just a waste of time and resources, it's genuinely unhealthy. "Stop over-disinfecting and start ventilating" has to be a loud campaign, led by WHO & public health agencies.https://twitter.com/Calamitatis/status/1391733545270497282?s=20 …

      zeynep tufekci added,

      Iris Pangburn @Calamitatis
      Replying to @junrussell @Fundmasstransit @zeynep
      Yes, but on the other hand an enormous waste of work-time & resources. Consider the volume of disposable gloves, the plastic containers of lysol & so forth, the crippling requirements of daycare centers, etc. A more timely update could have limited that.
      11 replies 172 retweets 397 likes
      Show this thread
      zeynep tufekci‏Verified account @zeynep 10 May 2021

      zeynep tufekci Retweeted Ted Pedersen

      Yes. Some of what we can do is easy/free. Some of it is not, and requires resources and trade-offs (sealed building are energy efficient). Filtering can be an option when dilution is not. Challenge is very real, but still should start from the right place.https://twitter.com/SeeTedTalk/status/1391739250291486727 …

      zeynep tufekci added,

      Ted Pedersen @SeeTedTalk
      Replying to @zeynep
      this all makes a lot of sense. but a lot of schools and universities, for example, are in buildings that don't have great ventiliation, and improving that is costly and not likely to happen. so what do we do?
      6:04 AM - 10 May 2021
      • 19 Retweets
      • 105 Likes
      • Artificially Intelligent Hate-Bot The Fleef 🇧🇧🏳️‍🌈 RS Rod Laurenz Alexandra - Tweetar om det Sjuka i Samhället Kerry Woods 廖顯禕 Graham Webster P. F. Anderson is recovering ... slowly
      4 replies 19 retweets 105 likes
        1. New conversation
        2. zeynep tufekci‏Verified account @zeynep 10 May 2021

          zeynep tufekci Retweeted Pieter Peach

          Yep. Overdispersed things can't be studied with methods not suitable for them. Example: information provided by non-events is asymmetric compared to info from events. Cluster-randomized trials—say for source control—can't easily get statistical power. Etc.https://twitter.com/DrPieterPeach/status/1391741852852756486 …

          zeynep tufekci added,

          Pieter Peach @DrPieterPeach
          “It fries our assumptions” Great way to put it @zeynep. Explains a fundamental misstep, i.e. using a mean R0 of 2.5 to argue against aerosol transmission by ignoring the head of the long tail distribution curve. Hiding the important data away in the mean. https://twitter.com/zeynep/status/1391736001475796996 … pic.twitter.com/kXoPTvE1HN
          4 replies 28 retweets 116 likes
          Show this thread
        3. zeynep tufekci‏Verified account @zeynep 10 May 2021

          zeynep tufekci Retweeted Prof. Akiko Iwasaki

          Let me highlight that excellent work has been happening all year, as well. Resistance to relevant expertise was a problem, but many key papers from this year are co-authored by people across disciplines. One interesting interdisciplinary panel today.https://twitter.com/VirusesImmunity/status/1391751814840717316 …

          zeynep tufekci added,

          Prof. Akiko IwasakiVerified account @VirusesImmunity
          I am excited to participate in a panel to discuss indoor air & COVID transmission. I will focus on the impact of indoor environment on host immunity. Eager to learn from other speakers - @linseymarr @WBahnfleth @staylorvt @AdrianoAguzzi @LAPI_epfl https://smw.ch/online-event  pic.twitter.com/EvxPGocvAu
          Show this thread
          5 replies 28 retweets 109 likes
          Show this thread
        4. zeynep tufekci‏Verified account @zeynep 10 May 2021

          zeynep tufekci Retweeted Linsey Marr

          Excellent, rapid progress from the CDC, clarifying the tables that came with the aerosol update.https://twitter.com/linseymarr/status/1391863551132897285 …

          zeynep tufekci added,

          Linsey MarrVerified account @linseymarr
          Excellent! CDC removed a table from this page that mishandled the risk of transmission beyond 6'. It can easily happen in a poorly ventilated indoor environment, where people are not wearing masks. https://twitter.com/kprather88/status/1391854554702958593 …
          4 replies 17 retweets 122 likes
          Show this thread
        5. zeynep tufekci‏Verified account @zeynep 11 May 2021

          I recently went through the same chasing down of known outdoor case percentage. Same conclusion. As @mugecevik explains, "less than 10%" is misleading. Reported numbers of confirmed cases are around 0.1% so way lower than 10% even assuming undercounting. https://www.nytimes.com/2021/05/11/briefing/outdoor-covid-transmission-cdc-number.html …pic.twitter.com/1Zr5Iuqj54

          6 replies 103 retweets 321 likes
          Show this thread
        6. zeynep tufekci‏Verified account @zeynep 11 May 2021

          Seeing so many wondering if confirmed outdoor transmission can really be that low, compared with indoors. Yes. This confusion is another loss of being so late to acknowledge the key role of aerosols: the epidemiological record shows exactly what acknowledging aerosols predicts.

          12 replies 56 retweets 343 likes
          Show this thread
        7. zeynep tufekci‏Verified account @zeynep 13 May 2021

          zeynep tufekci Retweeted The Hill

          Yep, the problem with gyms — enclosed spaces where people engage in activities that we know greatly increase aerosol production — is that we aren't sufficiently good at spraying the weights with disinfectants. (ht @slowphotograph2)https://twitter.com/thehill/status/1392909521819996165 …

          zeynep tufekci added,

          The HillVerified account @thehill
          Bipartisan Senate bill introduced to give gyms $30 billion in pandemic relief http://hill.cm/5vxzeRl  pic.twitter.com/b46xkUtNV4
          9 replies 21 retweets 189 likes
          Show this thread
        8. zeynep tufekci‏Verified account @zeynep 13 May 2021

          zeynep tufekci Retweeted

          This is why the whole lack of clear communication and understanding around aerosol transmission—and the ensuing dominant visualization of COVID-19 mitigation as disinfecting, and its breach as people outdoors/beaches—matters. It makes things worse. https://twitter.com/dankrutka/status/1392913606522646538 …

          zeynep tufekci added,

          This Tweet is unavailable.
          6 replies 37 retweets 185 likes
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        9. End of conversation
        1. This Tweet is unavailable.
        2. zeynep tufekci‏Verified account @zeynep 10 May 2021
          Replying to @mattyglesias

          Absolutely. I wrote about this in my long piece on the science of it all back in July of 2020. Clorox wipes remained sold out for well into the pandemic, HEPA filters—which absolutely do help—did not. Some places wouldn't even *allow* schools to use them. https://www.theatlantic.com/health/archive/2020/07/why-arent-we-talking-more-about-airborne-transmission/614737/ …pic.twitter.com/CrUInUrLxA

          2 replies 7 retweets 41 likes
        3. Show replies

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