Make no mistake, the costs of closing schools is high. Too many have gotten casual about this.

A thread.…
"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."
"As pressures to close schools again grow, we should recognize that the patterns of school closures and reopenings last year were defined by racial inequality. Black and Hispanic students were twice as likely as white students to be remote and...
"... were 2x as likely to have no live access to a teacher. This disparity persisted into the spring as schools reopened: Whereas 2% of majority white districts stayed closed, 18% of majority Black schools stayed remote, and nearly 1 in 4 majority Hispanic schools stayed closed."
"Online learning isn’t the same as in-person learning. A report by McKinsey examining Covid-19 effects on the 2020-21 school year found that the pandemic left students five months behind on math and four months behind in reading."
"Schools with majority Black and brown populations saw deeper losses: six months behind in math and five to six months behind in reading."
"A separate study analyzing the impact of remote learning found that math and reading passing rates were lowest in poor areas and that going from fully virtual to fully in person counteracted the low math passing rates by 10 percentage points."
"And that’s for students who were in school. One million students expected to be in school didn’t show up in person or online at all, with the largest declines in the youngest learners and in families living below the federal poverty line."
"school closings were preventing 14M kids from getting the food they need. Low-income children get more than 1/2 their calories from school meals. Kids with food insecurity are 2x as likely to be in poor health as kids who are food-secure and are more likely to be hospitalized."
"And it’s not only children who suffer when there is no school. Kids doing school at home also meant many parents couldn’t be at work. This additional home work disproportionately fell on women..."
"...and differences in labor force participation between women and men, already stark, grew 5 percentage points from 2019 to 2020 in states offering primarily remote instruction."
"All of these effects were predictable and, in fact, predicted. And they must not be repeated."

Let's put a marker out right now and say that these are all being predicted right now again, as schools close.
"The risk of severe outcomes to kids from coronavirus infection is low, and the risks to kids from being out of school are high. They are accumulating. And they could last for decades."…

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More from @j_g_allen

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.…
I made one of the earliest calls for universal masking, for that reason.

April 2, 2020…
Read 17 tweets
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?)

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)

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)

Read 4 tweets
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.


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."…
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."…
Read 6 tweets
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


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
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:…

(BONUS...improvements to school buildings come with many other benefits!) ImageImage
Where’d the ‘2 weeks’ come from? 👇
Read 4 tweets
20 Nov 21
Some people have have high ACE2 expression, and some have “almost none”

For the life of me, I can’t figure out why so few have engaged with this research that’s been out as preprint from @celldeathlab for over a year…

Read 4 tweets

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