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zeynep's profile
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. John Burn-Murdoch‏Verified account @jburnmurdoch 15 Sep 2021

      • By Jul/Aug, waning against infection meant case rates among over-60s were almost as high among double-jabbed as un-jabbed • But rates now plummeting among boosted cohort • 2-dose protection was still solid against severe outcomes, but boosters have strengthened it regardlesspic.twitter.com/oJ6WXr1cyJ

      12 replies 140 retweets 650 likes
      Show this thread
    2. John Burn-Murdoch‏Verified account @jburnmurdoch 15 Sep 2021

      Other things to note: • Israel may have had a bigger waning problem than e.g the UK because of its shorter dosing interval. PHE paper would support that theory • Similarly, short dosing interval may be a factor in how bad US’s Delta wave has been (tho low US vax rates also key)

      17 replies 160 retweets 835 likes
      Show this thread
    3. John Burn-Murdoch‏Verified account @jburnmurdoch 15 Sep 2021

      John Burn-Murdoch Retweeted Andrew Lilley

      Recent data from Israel compares protection from a booster shot to a range of other scenarios including protection from infection (both along and on top of vaccine):https://twitter.com/andrewlilley_au/status/1435850463237193732 …

      John Burn-Murdoch added,

      Andrew Lilley @andrewlilley_au
      Update from Israel comparing all forms of protection including new data on boosters given and breakthrough infections (natural immunity from infection after vaccination). Shows that natural immunity will almost surely be part of reaching herd immunity. pic.twitter.com/KdiiefCgf0
      Show this thread
      5 replies 57 retweets 327 likes
      Show this thread
    4. John Burn-Murdoch‏Verified account @jburnmurdoch 15 Sep 2021

      This is important for two reasons: • First, it shows infection-acquired immunity plays an important role in protecting a population from the virus (but no: don’t go out and try to get infected)

      16 replies 54 retweets 424 likes
      Show this thread
    5. John Burn-Murdoch‏Verified account @jburnmurdoch 15 Sep 2021

      • Second, it’s critical to remember that if a VE study doesn’t make sure its unvaccinated control group have all never been infected, its estimate of vaccine-induced protection will be biased downwards because of the level of protection that previously-infected people have

      8 replies 55 retweets 471 likes
      Show this thread
    6. John Burn-Murdoch‏Verified account @jburnmurdoch 15 Sep 2021

      John Burn-Murdoch Retweeted Muge Cevik

      And on that note, the always-excellent @mugecevik has a fantastic diagram here demonstrating how the more time passes, the more ways there are that estimates of vaccine efficacy can be biased (in both directions), which is always worth keeping in mindhttps://twitter.com/mugecevik/status/1430218388287148035 …

      John Burn-Murdoch added,

      Muge CevikVerified account @mugecevik
      All studies assessing the performance of vaccines against Delta are based on real-world data (vaccine effectiveness), which are influenced by variant transmissibility, human behaviour, and immunity status of the population, therefore they require careful interpretation. (3/n) pic.twitter.com/6eLma6OQTQ
      Show this thread
      5 replies 82 retweets 521 likes
      Show this thread
    7. John Burn-Murdoch‏Verified account @jburnmurdoch 15 Sep 2021

      To conclude: • Most people, especially younger adults and people in good health still have excellent protection against severe Covid, and do not urgently need boosters • Boosters could save the lives of many older and otherwise vulnerable people (and reduce hospital pressure)

      27 replies 205 retweets 873 likes
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    8. John Burn-Murdoch‏Verified account @jburnmurdoch 15 Sep 2021

      Here’s our story, from @clivecookson @mroliverbarnes and yours truly:https://www.ft.com/content/cf83b3a1-fe06-4c9f-999c-7500090aee7c …

      7 replies 82 retweets 424 likes
      Show this thread
    9. John Burn-Murdoch‏Verified account @jburnmurdoch 15 Sep 2021

      John Burn-Murdoch Retweeted John Burn-Murdoch

      One side-note: I’ve talked a lot about how the rush for boosters in rich countries feels ethically dubious given the number of developing countries still seeing record death tolls [in their largely unvaccinated populations] https://twitter.com/jburnmurdoch/status/1429878268669399044 … I still hold that view, but...

      John Burn-Murdoch added,

      John Burn-MurdochVerified account @jburnmurdoch
      Final thought for today: Understandably, talk of waning immunity means lots of chatter about boosters [in rich countries]. There are still dozens of countries with hardly any first and second doses done let alone thirds, and their epidemics are as lethal as they have ever been. pic.twitter.com/r7BAf3Q4tB
      Show this thread
      3 replies 51 retweets 332 likes
      Show this thread
    10. John Burn-Murdoch‏Verified account @jburnmurdoch 15 Sep 2021

      Now with two injections (sorry) of nuance: 1) I don’t think it’s helpful to think of vaccine supply as a zero-sum game. Vaccine manufacturers respond to demand, and it’s not as simple as booster doses being diverted from Africa

      19 replies 53 retweets 417 likes
      Show this thread
      zeynep tufekci‏Verified account @zeynep 15 Sep 2021
      Replying to @jburnmurdoch

      (I disagreed with this in my own thread, because I think it is very much a zero-sum situation, but yeah, UK, again, giving us some data to work with)

      6:43 AM - 15 Sep 2021
      • 13 Likes
      • Vinay Gorur 😷Omnibox Teachall😷 Normal Man jp Sam Dhole Dr. Lindsey Nicole Shultz Alan Jenkins
      1 reply 0 retweets 13 likes

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