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Eric Feigl-Ding Profile picture
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27 Jul, 11 tweets, 7 min read
BREAKING—CDC reverses course—CDC is expected to recommend on Tuesday that people vaccinated for the coronavirus resume wearing masks indoors. The change follows reports of rising breakthrough infections with the #Deltavariant. ➡️ ABOUT DAMN TIME! #COVID19 nytimes.com/2021/07/27/hea…
2) the new guidance would mark a sharp turnabout from the agency’s position since May that vaccinated people do not need to wear masks in most indoor spaces.
3) As recently as last week, an agency spokesman said that C.D.C. had no plans to change its guidance, unless there were a significant change in the science. Federal officials met on Sunday night to review new evidence that may have prompted the reversal. cnn.com/2021/07/27/pol…
4) I think this new data on vaccine efficacy against #DeltaVariant prompted the sudden change by @CDCgov. Glad @CDCDirector reversed course. But I worry it might be harder for compliance now than if we kept masks in place in May.
5) the waning efficacy of the Pfizer vaccine over time is quite sharp and significant. As explained in the thread 🧵 below, it’s both likely age effect, waning effect, as well as #DeltaVariant effect.
6) the drop in vaccine efficacy currently against #DeltaVariant is compounded by new data of substantial drop in IQ equivalent scores on intelligence tests among #COVID19 survivors. This is not something to scoff at—we have seen this in countless other studies.
7) So in other words… this old May 13th CDC announcement did not age well… #DeltaVariant is so rampant today partly because of low vaccinations and partly because of low precautions by CDC.
8) That said, low vaccinations is the main reason hospitals in the South are currently overloaded like in Arkansas… this will hurt a lot more people who don’t have #COVID19 but need ICU beds.
9) but the right wing misinformation machine is cranking at full gear against masks… this was also spurred by the CDC saying in May that “one didn’t need it”— because that’s what anti maskers heard on their end.
10) Ahead of CDC announcing changed mask guidance, @weijia asks @PressSec: "What is your message to Americans who are feeling whiplash right now?"

Psaki: "Our goal is to save their lives." 👏

Yes, to err is human. To correct, divine.

HT @therecount

11) here is the official announcement— masks regardless of vaccinations. But why high transmission areas only? Makes no sense. We don’t want to keep spreading it.

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More from @DrEricDing

Eric Feigl-Ding Profile picture
29 Jul
I now crown Alberta as the new ‘Florida of Canada 🇨🇦’ … get a positive #COVID19 test? ➡️ No need to isolate says new horrible rules by heinously irresponsible @CMOH_Alberta. ⚠️Meanwhile, COVID now spreading faster (RT=1.48) in Alberta than during peak of 3rd wave. #COVID19AB Image
2) “Health and infectious disease experts say the rate at which COVID-19 cases are growing in Alberta is alarming, as it spreads faster than during the height of the pandemic's third wave.”

google.com/amp/s/www.cbc.…
3) “The R-value, which represents the number of people infected by each infected person, was 1.48 (with a confidence interval of 1.38-1.59) in Alberta as of Sunday.
That number — which has doubled in recent weeks — means 100 people with the virus will spread it to 148 others.
Read 7 tweets
Eric Feigl-Ding Profile picture
28 Jul
📍”It’s clear all the signals are that there are groups that need booster shots in a couple of months” says @Bob_Wachter. I agree. The groups most likely are: immunocompromised, have major risk factors, the elderly, and those who had gotten shots earliest.
2) “it’s up in the air… what is clear is that if you got J&J as your first and only shot, you shouldn’t get another J&J, you should get either Pfizer or Moderna” says UCSF chair of medicine, @Bob_Wachter, on need for booster for J&J.
3) Why boosters? Couple reasons: #DeltaVariant is more evasive, vaccinations wane after 6 months, and elderly need more protection. See detailed thread 🧵 on these issues… ⬇️
Read 4 tweets
Eric Feigl-Ding Profile picture
27 Jul
📈NEW RULES—@CDCDirector Walensky announces new mask guidance, regardless of #COVID19 vaccination, due to surging #DeltaVariant:

📌Wear masks indoors, in public areas with ‘high transmission’ (why not all?)

📌All K-12 schools wear a mask indoors. More—🧵
2) “some vaccinated people infected with the #DeltaVariant after vaccination may be contagious and spread the virus to others.”

We have known this for MONTHS. A little late but better than never.
3) @CDCDirector: “the big concern is that the next variant that might emerge, just a few mutations potentially away, could eventually evade our vaccine… for hospitalization & death.”

note: breakthrough mild infections allows transmission too. #Maskup
Read 10 tweets
Eric Feigl-Ding Profile picture
27 Jul
📍75% of hospital #COVID19 admissions were unvaccinated, 9% were fully vaccinated without immune deficiencies, 5% were vaccinated with immune deficiencies, 11% `unknown', for all #DeltaVariant-surge hospitalizations last week, says Dutch govt report. 🧵 nos.nl/artikel/239113… Image
2) No differences were detected among vaccines for breakthroughs in terms of the risk of being hospitalized while fully vaccinated. Netherlands 🇳🇱 uses 4: AstraZeneca, Pfizer, J&J, and Moderna -. ➡️ We need CDC to report this for the US now!
3) we are seeing #DeltaVariant penetrating vaccines a lot, even Pfizer, among one of the best vaccines out there. It’s still good for #DeltaVariant hospitalizations— 88% efficacy, but this is lower than 93% last month and 98% in May. Must stay vigilant.
Read 5 tweets
Eric Feigl-Ding Profile picture
27 Jul
Damnit - there are again ZERO ICU beds available in the state of Arkansas (one of the lowest vaccinated states in the US). This means many others beside #COVID19 patients in the hospital awaiting beds may die. #vaccinate please for the love of god.

2) Anyone else see a vicious cycles happening if we know Covid infection and hospitalization also leads to IQ drop?
3) what’s worse is when we no longer have hospitals beds for kids. Pediatric hospitalizations soaring in multiple countries with #DeltaVariant
Read 11 tweets
Eric Feigl-Ding Profile picture
27 Jul
⚠️“SUBSTANTIAL DROP” in intelligence—#COVID19 survivors suffer severe cognitive deficit. Patients hospitalised on ventilators saw the biggest drop in on intelligence tests—equal to a **7-point drop in IQ**!
Larger than suffering stroke or lead poisoning!🧵news.sky.com/story/covid-19… Image
2) researchers found those who had contracted COVID saw the greatest underperformance on tasks requiring reasoning, planning and problem-solving compared to those who had not had the virus. ➡️ but they found a significant (starred) drop **even in mild patients too**! #LongCovid Image
3) "These results accord with reports of long-COVID, where 'brain fog', trouble concentrating and difficulty finding the correct words are common." the authors report.

Link to study… peer reviewed. thelancet.com/action/showPdf…
Read 14 tweets

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