UPDATE—variants & #COVID19 vaccines—Pfizer vaccine had great efficacy of 89.5% vs #B117 🇬🇧variant & 75% vs #B1351 🇿🇦variant infection with 2 doses.🧵

(Ignore 1 dose efficacy—it didn’t exclude first 14 days post shot—author @Laith_AbuRaddad now clarifies)
2) To be clear, in the @NEJM article, the authors failed to define 1st dose and didn’t exclude the first 14 days of post vaccination followup. It was not disclosed until someone @supermarioelia asked in a direct written communication. Thus the paper’s 1st dose number too low.
3) For protection against severe disease, efficacy was 100% for 2 doses for the variants, 97% overall for all #COVID19 cases. That’s great.
4) I would like to request Dr @Laith_AbuRaddad clear up the confusion and formally report the true 1 dose efficacy with the initial 14 day post shot exclusion. It’s not in the appendix or anywhere in the paper.
5) That said, variants vaccine efficacy is somewhat lower than the efficacy versus original old strain. Luckily they are working on boosters.
6) we cannot ignore the variants. It is a ticking time bomb if we don’t get cases under control.
7) that said, we know 2 doses always gives more protection than one dose. We need to do 2 doses fast.

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More from @DrEricDing

9 May
🧠New study shows a drug that affects neurons that form fearful memories, has opposite effects on remembering events by sex—it *reduces* the capacity to recall traumatic events in male mice, but opposite effect in female mice of *increasing* fear memory.😮
2) “Is the first time that a drug has been shown to produce this opposite effect on the memory of male and female mice. The study also evidences that opposing molecular mechanisms and behaviors can occur in memory formation depending on sex.”
3) “The research group on Translational mechanisms of the memory of fear has been studying the functioning of fear memory for years to find treatments for pathologies associated with traumatic experiences, such as post-traumatic stress and phobias.”
Read 8 tweets
9 May
Just in—they don’t know for sure where the #ChineseRocket is exactly anymore— @AerospaceCorp reporting that data has stopped coming in, which means it maybe has re-entered. But if you see the debris field (and within the lines), you can report it here:
aerospace.org/debris-sightin… Image
2) Legend for the above prediction chart for the #ChineseRocket
3) 20 minutes ago spotted over Jordan 🇯🇴
Read 4 tweets
9 May
The percentage of Americans struggling with hunger dropped 40%—now at its lowest level since #COVID19 pandemic began, suggesting the recent flood in aid from Congress and @JoeBiden WH is making a significant difference to families struggling economically.
2) Census Bureau shows the % of adults living in households that sometimes or often did not have enough to eat dipped to just over 8 percent late last month, down from nearly 11 percent in March. That is a substantial drop after hundreds of billions in stimulus checks went out.
3) “Money helps,” said Diane Whitmore Schanzenbach, an economist at Institute for Policy Research at Northwestern University, who has been tracking hunger rates closely throughout the pandemic. “We’re continuing to see signs of progress. That’s exciting. That’s good news.”
Read 5 tweets
8 May
DEBUNK—Medical experts and the CDC said it’s not biologically possible for the COVID-19 vaccine to “shed” or affect unvaccinated people, despite what anti-vaccine activists claim. Thread 🧵 #COVID19
politifact.com/article/2021/m… Image
2) The misinfo about “vaccine shedding” has had real-world impact. One FL private school recently told immunized teachers to stay away from students, citing the baseless claim that unvaccinated people can get menstrual irregularities simply from interacting with vaccinated people
3) There is no evidence that the COVID-19 vaccines cause fertility or menstruation problems in people who get them, let alone in their close contacts, experts said.
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8 May
Stupid—Oregon church has huge 74+ person #COVID19 outbreak after dozens of maskless churchgoers stood onstage singing & clapping inside a packed indoor venue for Easter Sunday service. The Peoples Church, is vowing to do continue church service on Sunday. washingtonpost.com/nation/2021/05…
2) Now, the Oregon Health Authority says that at least 74 people associated with the church have tested positive for the coronavirus — one of the state’s largest workplace outbreaks.
3) “In a statement, the church’s leaders attributed the outbreak to a recent rise in covid-19 cases in Marion County, Ore.

Murray said the church, which has held in-person services throughout the pandemic, intends to continue with in-person ceremonies on Sunday.
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8 May
⚠️AIRBORNE >6 FEET / 2 METERS! The CDC finally acknowledged #SARSCoV2 has major transmission via airborne aerosols beyond 6 feet / 2 meters, not just close contact. The CDC/WHO & airborne deniers are a year late—and negligently endangered many. #COVID19 🧵
nytimes.com/2021/05/07/hea… ImageImage
2) The Centers for Disease Control and Prevention now states explicitly — in large, bold lettering — that airborne virus can be inhaled even when one is more than six feet away from an infected individual. cdc.gov/coronavirus/20…
3) The new language, posted online, is a change from the agency’s previous position that most infections were acquired through “close contact, not airborne transmission.”
Read 20 tweets

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