There is urgent need for practical guidance for schools and other indoor spaces. For now, see thread from an excellent scientist. Lack of official guidance means there is a lot of snake oil in this space. Basic HEPA filters work, though. See for details->https://twitter.com/CorsIAQ/status/1288739096148336642 …
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zeynep tufekci Retweeted Shelly Miller, PhD
Another expert with specific guidelines.https://twitter.com/ShellyMBoulder/status/1288327833799008257 …
zeynep tufekci added,
Shelly Miller, PhD @ShellyMBoulder(1/2) Are searching for an air cleaner? 1st, I recommend HEPA only for COVID risk mitigation indoors. Want to treat a 600 sq ft room? FYI an air cleaner with a CADR of around 400 cfm will give you 5 air changes of particulate-free air (assuming an 8 ft ceiling).Show this thread5 replies 62 retweets 218 likesShow this thread -
zeynep tufekci Retweeted Zackary Berger
Yes, there is an excellent detailed spreadsheet with different places/scenarios (class/subway/campus) by
@jljcolorado that the more engineering-oriented can play with. Make a copy, fill in orange boxes to get estimates: https://docs.google.com/spreadsheets/d/16K1OQkLD4BjgBdO8ePj6ytf-RpPMlJ6aXFg3PrIQBbQ/edit#gid=154529406&range=A159 …https://twitter.com/DrZackaryBerger/status/1288891458783715330 …zeynep tufekci added,
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One implication: We should have found a way to honor John Lewis without endangering the many vulnerable people in that room. Hopefully they have high CADR HEPA filters or someone checked the ventilation specs. It's the speaker that's emitting the aerosols. https://twitter.com/Pinboard/status/1288881445876822017 …pic.twitter.com/YUdvntka4H
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zeynep tufekci Retweeted POLITICOEurope
Let me say this outright: This is unscientific, stupid and wrong. This is incredible. Six months in, how can we be this behind the science? This make so little sense that my head hurts. This is why focusing on the right science matters. h/t
@MartynaAFoxhttps://twitter.com/POLITICOEurope/status/1288897647344889863 …zeynep tufekci added,
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So, this is ridiculous.
@Delta is trying to reassure me flying is safe by mentioning... Lysol! Disinfecting! But not mentioning the actually reassuring things: cabin air is recycled every few minutes; cleaned by HEPA filters that can remove viruses and is circulated vertically.pic.twitter.com/cg5aqWgxrq
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zeynep tufekci Retweeted Scienceflare
Yes very much. I’ve been corresponding with Japanese experts and I have their documents going back to March. They’ve really been on the money. My piece has more on what Japan figure out to do because they took short-range aerosols seriously from the start.https://twitter.com/covidpath/status/1288863784358916097 …
zeynep tufekci added,
7 replies 83 retweets 301 likesShow this thread -
zeynep tufekci Retweeted Brian Bruce
Thank you! Indeed, ventilation is a layer in the mitigation stack. But understanding the role of short-range aerosols and potential airborne transmission makes how we should do the rest clearer. https://twitter.com/brianbruce7/status/1289039672627396608?s=21 …https://twitter.com/BrianBruce7/status/1289039672627396608 …
zeynep tufekci added,
2 replies 26 retweets 135 likesShow this thread -
Note to editors assigning COVID pieces. This is ~5K words, (Had another 1K on hygiene theater when
@DKThomp scooped me with a great piece!). Overwhelming feedback: thank you for the details! Do let your writers go long and treat the reader as a partner.
https://www.theatlantic.com/health/archive/2020/07/why-arent-we-talking-more-about-airborne-transmission/614737/ …7 replies 47 retweets 256 likesShow this thread -
A great article! A random question around the one incident mentioned of a jogger infecting his jogging partner that's classified as a super-spreader event: if only one person was infected by another, does that actually meet the criteria for a super-spreader event and if so, why?
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I wouldn’t classify as a superspreader event but it was weirdly in the database and I didn’t want to mess with it. So I just put in the explanation and trusted the reader to understand.
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Thank you, I will say it tripped me up because it sounds like one person simply infecting another, whereas my understanding of a super-spreader event is many people becoming infected after time doing something together (e.g., outbreak after choir practice).
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(Also I am not a scientist, just trying to make sure I am understanding terms and disease transmission as accurately as possible!
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