Skip to content
  • Home Home Home, current page.
  • Moments Moments Moments, current page.

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
zeynep's profile
zeynep tufekci
zeynep tufekci
zeynep tufekci
Verified account
@zeynep

Tweets

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

Tweets

  • © 2022 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    1. Wes Pegden‏ @WesPegden 3 Dec 2020
      Replying to @zeynep

      Obviously I agree this can make the case that these transmission paths can happen. But using the existence of any reports as the basis for policy decisions would ban outdoor dining as well, along with schools, etc.

      3 replies 1 retweet 33 likes
    2. zeynep tufekci‏Verified account @zeynep 3 Dec 2020
      Replying to @WesPegden

      I'm aware of very few documented outdoor transmission events—and we understand mechanisms here—plus we have many studies from schools showing age differences. We do have many restaurant/bar/nightclub transmission events. Proportions are indeed unknown, but we do have an idea.

      2 replies 3 retweets 35 likes
    3. Wes Pegden‏ @WesPegden 3 Dec 2020
      Replying to @zeynep

      I don't mean to suggest that we don't have reason to think indoor dining is higher risk; the increased risk of indoor settings seems to be one of the few things that is relatively clear. For me individual reports like this are a small part of the picture though. 1/

      2 replies 1 retweet 12 likes
    4. Wes Pegden‏ @WesPegden 3 Dec 2020
      Replying to @WesPegden @zeynep

      In particular the risk of cross-table transmission does seem unclear currently, rather than transmission between people at the same table, or staff in close contact with customers. Highest risk environment not within-table is likely the kitchen, whether for takeout or dine-in./2

      1 reply 1 retweet 7 likes
    5. zeynep tufekci‏Verified account @zeynep 3 Dec 2020
      Replying to @WesPegden

      Cross-table contamination seems to depend on ventilation and air flow in the room, hence a bit of a crap shoot. (Though ventilation can be measured with CO2 devices). I would guess that kitchen=masked workers<unmasked diners, especially if masks are better grade/fit.

      1 reply 3 retweets 14 likes
    6. Wes Pegden‏ @WesPegden 3 Dec 2020
      Replying to @zeynep

      I suspect that a loud kitchen with people talking to each other is likelier to be much worse than the risk of cross-table transmission regardless of who is wearing cloth masks. This is a case where better evidence on the quantitative effectiveness of masks would matter though.

      1 reply 1 retweet 7 likes
    7. Wes Pegden‏ @WesPegden 3 Dec 2020
      Replying to @WesPegden @zeynep

      Sorry, I somehow missed your reference to "better grade" masks. I agree that better masks for people in these environments should be a high priority. The messaging on this is terrible right now! I'm still not sure we should think a quick service cook is "safe" in a mask.

      1 reply 1 retweet 6 likes
    8. zeynep tufekci‏Verified account @zeynep 3 Dec 2020
      Replying to @WesPegden

      Yeah, close quarter work is probably not great, but I've been chatting with restaurant owners who tell me that a professional kitchen has frequent air exchanges. I still did give him a bunch of KN95s for the kitchen/cooking staff based on similar logic to yours.

      2 replies 3 retweets 15 likes
    9. David Andersen  💉 💉 💉 🎉‏ @dave_andersen 4 Dec 2020
      Replying to @zeynep @WesPegden

      This seems likely - every cooking station has an exhaust fan, and the NFC requirements are pretty intense: 12' of cooking space probably involves 4000 CFM of exhaust. Kitchens with sufficient exhaust will also use a make-up air fan to draw in extra external air.

      1 reply 0 retweets 0 likes
    10. Wes Pegden‏ @WesPegden 6 Dec 2020
      Replying to @dave_andersen @zeynep

      On the other hand I'm not aware of any epi data showing kitchens are low-risk. In the Swedish occupational hazard study in the spring, kitchen staff did have much higher relative risk of infection. 2.5x risk. Pizza chefs were at 4.5x risk, second only to taxi drivers.

      1 reply 0 retweets 5 likes
      zeynep tufekci‏Verified account @zeynep 6 Dec 2020
      Replying to @WesPegden @dave_andersen

      Sweden doesn't use masks, also making comparisons harder.

      11:00 AM - 6 Dec 2020
      • 2 Likes
      • David Andersen 💉💉💉🎉 Wes Pegden
      1 reply 0 retweets 2 likes
        1. New conversation
        2. Wes Pegden‏ @WesPegden 6 Dec 2020
          Replying to @zeynep @dave_andersen

          Right (not for any occupations though). To me this just suggests that at least in some restaurant environments, the ventilation doesn't put the kitchen on comparable footing with other workplaces. If a friend asked me if the kitchen was a low-risk job, I'd say "probably not".

          3 replies 0 retweets 9 likes
        3. Show replies

      Loading seems to be taking a while.

      Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

        Promoted Tweet

        false

        • © 2022 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Cookies
        • Ads info