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Joseph Allen Profile picture
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11 Jan, 10 tweets, 3 min read
8 degrees in Boston. No outdoor activities at school.

My 9 year old: "So no mask breaks today? That's worse than freezing."

Don't tell me 2 years of masking doesn't impact kids. Their risk is low, vaccines avail for all adults and kids, anyone who wants can mask. It's time.

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More from @j_g_allen

Joseph Allen Profile picture
3 Jan
Make no mistake, the costs of closing schools is high. Too many have gotten casual about this.

A thread.

nytimes.com/2021/12/20/opi…
"Even short-term closings have steep consequences. Schools are the place where we first detect trouble at home, including neglect and abuse."
"An analysis of data from New York City found a drop of nearly 8,000 in expected reports of allegations of child maltreatment. When researchers extrapolated that to the rest of the country, they estimated that more than 275,000 cases would have otherwise been reported."
Read 14 tweets
Joseph Allen Profile picture
29 Dec 21
I see a lot of people - on both "sides" - making simple mistakes about masks. I've studied PPE, taught PPE, and overseen PPE programs, including teams implementing fit testing in hospitals, long before covid.

A thread
1. Masks work

It's basic physics.

nytimes.com/interactive/20…
I made one of the earliest calls for universal masking, for that reason.

April 2, 2020
washingtonpost.com/opinions/2020/…
Read 17 tweets
Joseph Allen Profile picture
20 Dec 21
1. Vax/boost are key (I said about 40x...)
2. Not reckless for NFL to stop routine testing of vaxxed. Were doing 1x a week which is a surveillance strategy, not a control strategy. (you've seen viral kinetics of Omicron, right?)

continued...

megaphone.link/ESP2361058666
3. Overestimating transmission risk on the field (they have good ventilation/filtration in locker room, trainer, weight room...right? RIGHT??)
4. Overestimating superspreader risk in large volume spaces, like outdoor stadiums (and even indoor arenas)

continued...
5. Not just a $ issue. (So easy to attack in this way.) Many tens of thousands of incomes and livelihoods on the line (which, is, you know... public health), and what the sports leagues do influences what schools and others do (see: NBA closing, March 2020)

continued...
Read 4 tweets
Joseph Allen Profile picture
4 Dec 21
It was never a question of if, only a question of when. And when that when happened, we knew buildings would play a key role in the a response.

A thread on ANTICIPATE, RECOGNIZE, EVALUATE, CONTROL, and CONFIRM

1. ANTICIPATE (Dec 2, *2019*)
2. RECOGNIZE (Feb 9, *2020*)

"Even with this uncertainty, it is clear that we can enlist buildings to help us in this fight."

ft.com/content/5083fd…
3. EVALUATE (March 4, 2020)

"there is still some debate about how the new coronavirus that causes Covid-19 is spread. This has resulted in an overly narrow approach taken by the federal CDC and WHO. That’s a mistake."

nytimes.com/2020/03/04/opi…
Read 6 tweets
Joseph Allen Profile picture
29 Nov 21
This picture is creating misplaced outrage bc Biden is in a surgical mask instead of an N95.

1. Yes, N95s or KF94s are better if you need to wear a mask

—AND—

2. Everyone is fully vaxxed and boosted, so masks provide limited benefit (especially considering 5 and 6)
🧵
3. Even though surgical mask has lower efficiency, the combined efficiency of two 70% masks is 91%. Saying they’re useless is incorrect.
4. In addition, surgical masks get dinged bc ‘leaky’ out the sides, but this misses point that they still help lower the concentration in the cone of emissions directly in front and slow the speed of the emission jet. (particularly relevant when you factor in 5 and 6 next…)
Read 5 tweets
Joseph Allen Profile picture
27 Nov 21
What can schools do right now, if feeling anxious and don't want to wait 2 weeks til Omicron gets sorted out? Implement the simple tips from our Lancet COVID19 Commission report: covid19commission.org/safe-work-trav…

(BONUS...improvements to school buildings come with many other benefits!) ImageImage
Where’d the ‘2 weeks’ come from? 👇
2 weeks
Read 4 tweets

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