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Eric Feigl-Ding Profile picture
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19 Jan, 6 tweets, 3 min read
VENTILATION IS CRITICAL—“Being in a well ventilated space can reduce the risk of inhaling tiny airborne pathogens by 70%”, says @CathNoakes

My take—school cafeterias **must** be fully open-air ventilated or in outdoor tents until #COVID19 pandemic over.
bbc.co.uk/sounds/play/m0…
2) Key is ventilation. Japan assumed it was airborne from the very beginning. Hence their mask culture and focus on air flow. Here is how to ventilate your school classrooms if unable to open the window. #COVID19
3) We often say in environmental health, "the solution to pollution is dilution". ventilation is the key air dilution and air replacement method.
4) VENTILATION is key. Both ventilation and masks needed to reduce risk indoors. But most buildings not ventilated well enough.

5) Here are key priorities I’ve outlined in this thread 🧵
6) good lessons on aerosols. ⬇️

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More from @DrEricDing

Eric Feigl-Ding Profile picture
21 Jan
Sweden 🇸🇪 excess deaths is at an epic high in 100+ years.

2020 has both the **most number of excess deaths** & **highest per capita excess deaths** than any year since the 1918-1919 pandemic.

Swedish #COVID19 herd strategy my ass.

Similar story in US. 🧵

(Figure by @zorinaq) Image
2) Here is US’s total excess mortality since Feb 1 2020: 470,000 excess above 2015-2019 average.

Figure is directly from the CDC.
3) Swedish data source. scb.se/en/finding-sta…
Read 5 tweets
Eric Feigl-Ding Profile picture
21 Jan
BREAKING—US smashes the all time #COVID19 daily death record once again, with 4131 deaths in one day.

TOTAL EXCESS DEATHS since Feb 1, 2020:

... now over 470,000. 😢 Image
2) Excess deaths are defined as the difference between the observed numbers of deaths in specific time periods and expected numbers of deaths in the same time periods. The expected average is from 2015-2019.

cdc.gov/nchs/nvss/vsrr…
3) Excess deaths captures both underdiagnosis (if someone died without ever having a positive test) or indirect effect on healthcare system that leads to other deaths due to displaced healthcare (hospital full, ambulance delayed, medical equipment shortages, staff shortages, etc)
Read 4 tweets
Eric Feigl-Ding Profile picture
21 Jan
REINFECTION & VACCINE SENSITIVITY—the concern is now growing very very real. This piece highlights the big S Africa 🇿🇦 CDC report I shared earlier, where antibodies from previously infected don’t recognize the #B1351 variant in 48% of patients. 🧵 #COVID19
nytimes.com/2021/01/20/hea… Image
2) “The results “strongly, strongly suggest that several mutations that we see in the South Africa variant are going to have a significant effect on the sensitivity of that virus to neutralization” says a virologist from @nicd_sa, South Africa’s CDC.
3) And the #B1351 variant did not just 48% had “complete immune escape”, but 90% also showed reduced immune response. That’s a lot. Image
Read 11 tweets
Eric Feigl-Ding Profile picture
20 Jan
LEADERSHIP—

Biden says, while swearing in 1000+ political appointees, "If you're ever working w/ me and I hear you treated another colleague with disrespect, I promise I will fire you on the spot. Everybody is entitled to be treated with decency.”

Thank you @JoeBiden. Image
2) Leadership also in #COVID19 safety in WH.
3) Leadership in making sure CDC follows the science for #COVID19
Read 4 tweets
Eric Feigl-Ding Profile picture
20 Jan
JUST IN—Biden’s new CDC Director @RWalensky announces that CDC will review all of its #COVID19 guidances.

School risk?
Airborne transmission risks?
Workplace safety?
Church safety?
Quarantine rules?
Rapid testing?
Distance rules?
Travel risks on planes, buses, trains?

so much! Image
2) This is also why the WH is also much more Covid safe... because we now follow the science, not Scott Atlas.
3) The CDC has been muzzled for way too long during the #COVID19 crisis. Waaaaayyyy too long...
Read 5 tweets
Eric Feigl-Ding Profile picture
20 Jan
Folks—@Twitter has just shafted @JoeBiden’s @POTUS account.

📍When Trump had become president, his POTUS account inherited all followers from @BarackObama’s POTUS account.

➡️But when Biden became President, Twitter refused to transfer those POTUS followers to @POTUS.

Unfair. ImageImage
2) This is real. Biden administration is not too happy.

Biden’s digital director called Twitter’s transition plan “profoundly insufficient” in a tweet last week.

google.com/amp/s/www.wash…
3) “They’re bending themselves over backwards to break with the 2017 protocol they set on the transfer of accounts, and also breaking with every other social platform in providing the new administration a follower base,”
Read 9 tweets

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