Masks work? YES. This is appalling. Atlas offers no explanation for the increasing mountain of evidence in support, and instead offers only a bizarre and incoherent paper. I don't know why the administration wants to die on this hill.
So, once again, what is the evidence?

In my May article on the regimen hospitals have used to stop spread of COVID19 (hygiene, distancing, masks, and testing at least symptomatic people), I review the copious evidence to then on why masks work.…
Since that article, numerous corroborating studies have come out. This comprehensive review lays out the strong laboratory evidence of the ability of surgical masks and cloth masks to prevent transmission.…
This real world report found that before a mandatory mask regimen at @MassGenBrigham, COVID19 cases were increasing exponentially among health care workers, and after they decreased steadily.…
This study of coronavirus deaths across 198 countries found that countries with higher rates of mask-wearing had lower death rates.…
This @Health_Affairs paper examining COVID19 rates before and after mask mandates in 15 states + DC found the mandates slowed the daily COVID19 growth rate exponentially. >200,000 lives estimated saved.…
These are the results from Arizona's experience after it's mask requirement and limitation of indoor crowding…
Famously, two infected hairstylists in Springfield, MO, exposed 140 clients in prolonged close contact with them. But masks were used by all and contact tracing and testing turned up zero infections.…
And there are other cases like this, such as this one with a man on a flight who had a cough and subsequently tested positive, but wore a mask and infected no one.…
Masks aren't perfect. They markedly reduce transmission and real but limited protection to wearers. Wearers are nonetheless at risk from non-wearers, inconsistent use, and going to indoor bars and restaurants where all remove the mask to eat.
So the fact that mask wearers can still get infected doesn't mean they aren't protective, let alone are causing spread of infection.…
Again, again, again, the evidence for masks is overwhelming. Atlas is spreading false information and is either shockingly unknowledgeable about public health basics or deliberately misleading the public.

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More from @Atul_Gawande

17 Oct
Warning for COVID scientists: An impostor is asking scientists for an interview using the email (not mine) and signature “Atul Gawande, Staff Writer, The New Yorker.”

These are fake. Do not respond. I use a address for work. 1/4
One scientist did respond. It led to back-and-forth emails and a brief phone call to settle on an interview time. The impersonator sent a Microsoft Teams-like link. The result was a hack that accessed the victim’s computer, phone, apple ID, business and home gmail accounts. 2/4
They also accessed Twitter and other social media accounts.

They have possession of the scientist's financial account details.

And most disturbing, they tried to get into the person’s home security alarm system. 3/4
Read 4 tweets
16 Oct
And with the CDC under a political thumb, it’s crazy but fortunate we can rely on independent sources like Johns Hopkins’ @JHUSystems and @TheAtlantic’s @COVID19Tracking for basic facts on COVID19
Meanwhile, however, “The Trump White House has installed 2 political operatives at the [CDC] to try to control the information it releases about the coronavirus pandemic as the administration seeks to paint a positive outlook.“…
Read 4 tweets
7 Oct
Recently, @BrighamWomens had a COVID-19 outbreak among 20+ patients & staff. We rapidly traced and tested all contacts and advised quarantine. We deployed PCR testing in <24 hours for ~9,000 staff. We ID’d 52 total cases associated w the cluster and are containing the outbreak.
The White House now has an outbreak involving 20+ guests and staff. They have done no tracing, no broad testing. And the outbreak is spreading outward.…
Not included in the @nytimes list are eleven more among debate prep staff reported by Cleveland public health authorities…
Read 5 tweets
19 Jul
This boggles the mind. With sky high COVID infections and deaths rising back to 1000/day, this: In talks w Senate GOP over the weekend, “administration officials instead pushed to zero out the funding for testing and for the nation’s top health agencies”…
More details in this @washingtonpost story. “Several Senate Republicans including @SenBillCassidy (R-La.) are exploring pushing a testing and tracing provision in the next stimulus package but are expected to meet resistance from the White House.”…
In addition to zeroing out $25B for testing and tracing, “The administration is also seeking to zero out $10 billion in new funding for the CDC in the upcoming bill.”
Read 4 tweets
12 Jun
Important results: Remember the 2 MO hairstylists who saw 140 clients over 8 days while infected with COVID but everyone had worn masks? Contact tracers found ZERO secondary infections. More evidence that masks work.…
By contrast, in Israel, two weeks after reopening schools, at least one infected student at a Jerusalem high school led to 130 cases among students and teachers. Dozens of schools had to be closed again as the outbreak spread.…
The likely difference: There was wide evidence students were not taking the virus seriously and were ignoring mask guidelines.…
Read 7 tweets
2 Apr
I'm very worried about what this means for the South. But results will be different depending on how many cases they had when they finally took action.…
Ohio set the example for the US. The Governor shut down early (3/23) under intense criticism, and that is slowing spread and likely averting overwhelming ICU admissions and deaths. They'll get through the worst of it this month.
Kentucky closed non-essential businesses later (3/26), but while COVID-19 deaths were still 1/day. So they also look on course to avoiding disaster. But it is likely to take longer for them to get through it. Sticking with the closures this long will be hard.
Read 7 tweets

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