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Eric Feigl-Ding Profile picture
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13 Mar, 6 tweets, 4 min read
One age group is not like the others. Before you say age 0-9 higher because it’s just elderly lower—it’s not, 0-9 is the only group increasing in Netherlands🇳🇱.

This higher relative infection trend in children age 0-9 is also seen nationwide in 🇫🇷 🇬🇧 🇮🇹 🇮🇱. 🧵

(HT @Datagraver)
2) Here is the latest UK data from England 🏴󠁧󠁢󠁥󠁮󠁧󠁿 showing kids 5-12 occupying the highest positivity prevalence of any age group in Feb.

The working theory of epidemiologists like myself and @SarahDRasmussen and @dgurdasani1 is that it is due to #B117 compounded by low kids masking
3) here is the pediatric surge data also from Italy’s prime minister and minister of health. They attribute it to #B117.
4) And here is the French data showing #B117 is highest in children 0-9.

I won’t say much more other than schools can reopen if they do it safely with masks and ventilation.
5) I’ll leave you this thread on how to reopen schools safely with masks, ventilation and air cleaning. Air exchange of 5 or more per hour in each classroom is key. This thread 🧵 explains the new CDC guidance.
6) Oh sorry, I forgot about Sweden 🇸🇪 pediatric surge... my bad. It’s actually the worst of all the countries above.

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More from @DrEricDing

Eric Feigl-Ding Profile picture
14 Mar
VACCINE ESCAPE OF VARIANTS vs Pfizer-BioNTech & NIH-Moderna: Troubling new peer-reviewed paper shows even 2-dose recipients have serious trouble neutralizing the #B1351 🇿🇦 variant—as little as vs old SARS & bat coronavirus. #P1 is poor too. 1-dose worse. Lots of graphs🧵 #COVID19 Image
2) First let’s cover some good news, that having 2 doses clearly MUCH MUCH better than 1 dose alone of either the Pfizer or Moderna vaccines versus neutralizing the classic #SARSCoV2 common strain.
cell.com/cell/pdf/S0092… Image
3) Notably, notice how much stronger in neutralization the blood of people with 2 doses of either Pfizer (dark blue) or Moderna (dark red) is versus the 1 dose of each. Note the logarithmic y-axis. So the difference is even greater. Image
Read 24 tweets
Eric Feigl-Ding Profile picture
14 Mar
Pretty amazing that we knew about ventilation and indoor air quality back in 1896. Sad that it takes 2 full blown global pandemic since then to heed these lessons.

So much suffering preventable by adage: “The solution to pollution is dilution / ventilation”. #COVID19 #Ventilate
2) CANARY IN THE COAL MINE FOR SCHOOLS: a tech savvy dad strapped a CO2 monitor to his kid to check air CO2 exposure on a school trip. Crazy high CO2 indicates poor indoor ventilation.

Ventilation & air disinfection will prevent outbreaks. #COVID19 #Ventilate
3) Key thing - it’s not the CO2 per se that directly affects #Covid19 risk, but that CO2 is a proxy for ventilation. We want CO2 levels as close to fresh air of ~400, so optimally <450 parts per mil.

FYI: normal CO2 used be in <325 ppm when I was born. Now it’s 420-450 ppm in 🌎
Read 4 tweets
Eric Feigl-Ding Profile picture
14 Mar
Long Covid is serious. Britain ONS estimates that 23.6% of women with #COVID19 and 20.7% of men continued to experience symptoms five weeks after they tested positive for the virus. Nearly 10% had symptoms 12 weeks later. 🧵 #LongCovid
bloomberg.com/opinion/articl… Image
2) the fact that 1 in 3 get rehospitalized from #COVID19 is just incredibly mind boggling.
3) How common is #LongCovid overall? UK estimates 1 in 5 at 5 weeks and 1 in 10 have symptoms have even 12 weeks after initial #COVID19 diagnosis.

Read 4 tweets
Eric Feigl-Ding Profile picture
14 Mar
SO BEAUTIFUL: @YoYo_Ma received his second vaccine shot Saturday, and then performed a mini concert for everyone. 

(HT @fparises @BerkshireCC) #CovidVaccine #COVID19
2) Yes this video is very real. What a beautiful thing to do for everyone waiting there for a vaccination. berkshireeagle.com/news/local/aft…
3) Another performance at the same mini concert by @YoYo_Ma
Read 4 tweets
Eric Feigl-Ding Profile picture
14 Mar
Did you know—30 million doses of the Oxford-AstraZeneca are sitting idle in the US, awaiting results from its U.S. clinical trial while countries that have authorized its use beg for access. That is 30 million doses sitting idle in Ohio factory! #COVID19 nytimes.com/2021/03/11/us/…
2) “Emergent BioSolutions, a company in Maryland that AstraZeneca has contracted to manufacture its vaccine in the United States, has also produced enough vaccine in Baltimore for tens of millions more doses once it is filled into vials and packaged, the official said.
3) “But although AstraZeneca’s vaccine is already authorized in more than 70 countries, according to a company spokesman, its U.S. clinical trial has not yet reported results, and the company has not applied to the Food and Drug Administration for emergency use authorization.
Read 5 tweets
Eric Feigl-Ding Profile picture
13 Mar
Oh, nothing to see here. #B117 is only just projected by epidemiologists in Germany 🇩🇪 to take over and cause amother #COVID19 surge.

Only predicted also by the CDC 🇩🇰🇨🇭🇨🇦 No big deal.

No need to pay attention @GovAbbott @tatereeves @GovRicketts @GovRonDeSantis @GovKemp.
2) Also #B117 surge predicted by Switzerland to also take over and cause a surge soon too.

Again, nothing to write home about. Move along. Look away.
3) US is totally fine... what the worry when we only have this kind of curve for #B117 %... not to worry. Who’s afraid of a 40-60% more contagious #COVID19. Like, as if America would ever follow Germany 🇩🇪 footsteps. Cuz we are 🇺🇸 right? Land of no masks in Texas MS FL and more.
Read 8 tweets

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