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Eric Feigl-Ding Profile picture
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21 Feb, 5 tweets, 2 min read
~90% SUCCESS AGAINST TRANSMISSION—the newest Israel 🇮🇱 study shows the Pfizer/BioNTech vaccine is 89.4% against all lab confirmed infections—which show the vaccine may also prevent asymptomatic carriers from spreading the virus that causes #COVID19. 👏
bloomberg.com/news/articles/…
2) In Israel, nearly half the population has at least 1 shot of vaccine. And 4 out of 5 infections during the study period in Israel were the #B117 variant from the UK. So it’s pretty good for B117 too.
3) The other recent Israel study says the Pfizer / BioNTech vaccine is 85% effective after 1st done and 75% for asymptomatic transmission — again just 1 dose after initial 2 week immunity building period.
4) These 1 dose findings were similar to the first-dose efficacy of 92.1% reported for Moderna’s mRNA-1273 vaccine!

That’s so huge! nejm.org/doi/full/10.10…
5) That said, keep in mind the 90% efficacy for 1 dose of Moderna was only after waiting 14 days. There’s little protection in the first 2 weeks.

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More from @DrEricDing

Eric Feigl-Ding Profile picture
23 Feb
This bothers me so much—

📍There are still no official CDC guidelines for ventilation for schools—no rules on adequate air exchanges—despite so much science on >=5 ACH/hour.

📍And 6 feet is not safe for airborne virus, says ex-OSHA chief. #COVID19 🧵 nj.com/opinion/2021/0… Image
2) “We’ve known for nearly a year that COVID is airborne – yet aside from hospitals, few workplaces acknowledge that the virus can hang in the air. Instead, they emphasize surface-scrubbing and physical distancing”
3) We need at 5 or more air exchanges per hour says @HarvardChanSPH researchers, either via natural ventilation or air cleaning. Image
Read 26 tweets
Eric Feigl-Ding Profile picture
22 Feb
I think Texas needs new leaders... First Ted Cruz and now...

Texas’s Attorney General Ken Paxton and wife TX Senator Angela Paxton both fled to Utah during #TexasBlackout to avoid the freezing cold and water outage while their voters suffered.
houstonchronicle.com/politics/texas…
2) Texas’s elected leaders directly control @ERCOT_ISO — and the deregulation and lack of safety investments that led to Texas’s electricity ⚡️ crisis and humanitarian crisis.
3) The breathtaking callousness of Texas leaders is quite something to behold. It is bottomless.
Read 7 tweets
Eric Feigl-Ding Profile picture
22 Feb
When I promised all of you Biden listens to scientists, I meant it. 👇
2) Like I said... promises made, promises kept....

Our TV 📺 ad months ago...
3) In contrast to [he who shall not be named] and ignored warnings of doctors and us epidemiologists...
Read 4 tweets
Eric Feigl-Ding Profile picture
22 Feb
📍OUTBREAK OF #B117 AT SEVEN SCHOOLS—sudden outbreak of #COVID19 cases at a British Columbia 🇨🇦—all elementary and middle schools. Genetic sequencing shows #b117 in early cases linked to outbreak. Classes quarantined. All the schools still remain open. 🧵 cbc.ca/news/canada/br… ImageImage
2) British Columbia 🇨🇦 teachers are now incredibly worried by the latest sudden 7 school outbreaks, and demanding decisive actions.
3) British Columbia is having a major increase in transmission — and has the highest R in Canada 🇨🇦 currently.
Read 20 tweets
Eric Feigl-Ding Profile picture
22 Feb
COVID hidden in lung 🫁 transplant—transplant recipient tragically dies after receiving donor lungs, unbeknownst infected with #COVID19. The surgeon also contracted same #SARSCoV2—both infected from the dead donor’s lung, verified from genetic sequencing.🧵nbcnews.com/health/health-…
2) “Doctors say a woman in Michigan contracted Covid-19 and died last fall two months after receiving a tainted double-lung transplant from a donor who turned out to harbor the virus that causes the disease — despite showing no signs of illness and initially testing negative.”
3) “Officials at the University of Michigan Medical School suggested it may be the first proven case of #COVID19 in U.S. in which virus was transmitted via an organ transplant. A surgeon who handled the donor lungs was also infected with the virus & fell ill but later recovered.”
Read 8 tweets
Eric Feigl-Ding Profile picture
21 Feb
AIR DISINFECTION—To reduce airborne #SARSCoV2 risk, new study finds HEPA cleaners, with total air exchange rate of 5.7  ACH/hour, after 2 hours in closed room with a highly infective person—the inhaled dose is 6x reduced!

➡️We need these for schools.🧵
tandfonline.com/doi/full/10.10… Image
2) In times when classes were conducted with windows and door closed, the aerosol concentration was reduced by more than 90% within less than 30 minutes when running the purifiers (air exchange rate 5.5 /hour)—and decreased by more than 95% within 37 minutes. Image
3) A **halving of the particle concentration was reached in 10.0, 7.0 or 5.4 minutes** (green, black and red lines, respectively), depending on the total flow of the purifiers.

The blue line shows a typical slow decrease when no purifiers were used. Image
Read 17 tweets

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