Fits very well actually. Known transmissions are surprisingly rare & are usually from the pre-masking era. Need better data but no huge outbreaks. Airplanes change air aggressively AND have HEPA filters. So they aren't like bars *despite* crowded indoors.https://twitter.com/MakatiTiger/status/1308035014249132032 …
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zeynep tufekci Retweeted Joseph Allen
Seems CDC has removed airborne update for now but it looks like they accidentally posted a draft. Okay. The wording could be a bit clearer anyway.
Let's wait for the (hopefully quick) update, as trust is key to public health. It's already late!https://twitter.com/j_g_allen/status/1308086726179643394 …zeynep tufekci added,
Joseph Allen @j_g_allenI agree that it would be great to believe this is honest mistake. And also, like@juliettekayyem, have my antenna up on this one. CDC now saying the guidelines were removed late this morning because “that does not reflect our current state of knowledge" https://www.washingtonpost.com/nation/2020/09/21/cdc-covid-aerosols-airborne-guidelines/ … https://twitter.com/juliettekayyem/status/1308077183164973063 …11 replies 19 retweets 107 likesShow this thread -
zeynep tufekci Retweeted Amy S. Rosenberg
Scientists have been trying—all year—to highlight and explain airborne transmission of aerosols. Both CDC & WHO are still lagging. My article is from July. But here we are. Everyone simply wearing masks would be better than whatever this is supposed to do.https://twitter.com/amysrosenberg/status/1312546192669265922 …
zeynep tufekci added,
13 replies 87 retweets 361 likesShow this thread -
Don't get me wrong; Jamie Harrison is doing the best he can, along with the rest of the public muddling through the confusing and incomplete guidance. Without proper visuals and guidelines or airborne transmission from the authorities, what can people do? It's an overall failure.
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zeynep tufekci Retweeted
No masks indoors but on playgrounds?
Failure all around. CDC still hasn't posted guidelines for airborne transmission. WHO's advice to the public still doesn't *mention* ventilation or how 3 feet isn't enough indoors or say masks on at all times indoors. https://twitter.com/reneritchie/status/1313103214963838978 …zeynep tufekci added,
This Tweet is unavailable.3 replies 52 retweets 150 likesShow this thread -
This is WHO's page for the public. It has many paragraphs on the use of hand-sanitizers but doesn't say *even once* that ventilation is important or outdoors is safer than indoors. WHO guidelines maintain the fiction that mere three feet is enough indoors. https://www.who.int/emergencies/diseases/novel-coronavirus-2019/advice-for-public …pic.twitter.com/gBkU5Ihva7
8 replies 79 retweets 220 likesShow this thread -
We need to be able to trust the CDC and the WHO to lead, to give us the best of research and public health guidelines. It's October 2020. I know there are people in both organizations who spent their lives for public health. But please. If not now, when? This is catastrophic.
8 replies 40 retweets 238 likesShow this thread -
I WANT TO support the WHO. But this is their *current* mask guidelines. It says that community health workers doing screenings, or the public being screened, do not need to wear masks AT ALL if one meter apart (a mere three feet)—even if indoors. https://www.who.int/publications/i/item/advice-on-the-use-of-masks-in-the-community-during-home-care-and-in-healthcare-settings-in-the-context-of-the-novel-coronavirus-(2019-ncov)-outbreak …pic.twitter.com/sbLRklR7qh
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YEAY! We finally got the CDC update. Acknowledges airborne transmission, emphasizes ventilation, says six feet not absolute when indoors especially if singing/exercising (add talking). There may be minor quibbles among the scientists but this is important! https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/how-covid-spreads.html …pic.twitter.com/LOmF7PWaBB
32 replies 534 retweets 982 likesShow this thread -
Finally, solid guidelines from the CDC. Masks at all times *around others*; indoors/crowds are higher risk; outdoors/good ventilation are better! Aerosol scientists also emphasize that they concentrate *near* the person so distance is important regardless one's underlying theory.pic.twitter.com/PftF07TirO
27 replies 400 retweets 769 likesShow this thread
The office guidance on ventilation is very good with actionable suggestions; I’m confident that when I return to the office sometime next year my employer will have implemented many of these suggestions now that they come from the CDC.
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