⚠️TWO DIFFERENT #COVID19 PANDEMICS—Many think with cases dropping that pandemic is nearly over. But truth is, there are now 2 different #SARSCoV2 pandemics diverging—old strain is waning, while the more contagious #B117 strain is dominating. We will be soon slammed very hard. 🧵
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https://t.co/gOq0put4H5
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\u26a0\ufe0fCRUSH VIRUS NOW OR ELSE WE ARE SCREWED: Denmark\u2019s CDC thinks new B117 #SARSCoV2 variant is so much more contagious (R +0.4 to +0.7) & inevitable that **if any country does not crush the R<0.7 now**, we will be completely #COVID19 screwed by Feb/March.\U0001f9f5
— Eric Feigl-Ding (@DrEricDing) January 6, 2021
https://t.co/CG1iZNx6uI pic.twitter.com/W7v1iAsgw3
➡️But w/ added contagiousness of B117 variant that has ~60% higher R, in 2 weeks, 3000 new cases/day instead.
➡️6x difference in 2 wks
HT @GosiaGasperoPhD
7) Now how does the new B117 variant change public health measures? What used to work for Australia and Canada will no longer work anymore. Only aggressive New Zealand and Austria 1st wave restrictions would now be able to stop the more transmissible B117 strain. pic.twitter.com/S2FKXF8g1n
— Eric Feigl-Ding (@DrEricDing) January 6, 2021

2.4%

4.0%

7.4%

12.1%
Denmark\U0001f1e9\U0001f1f0 even more worried than ever about new #B117 variant\u2014B117 cases increasing 70% a week **despite strict lockdown**, says Denmark\u2019s CDC genome sequencing *every single case in the country* for mutation. By contrast, \U0001f1fa\U0001f1f8 sequencing 0.3%. #COVID19 \U0001f9f5https://t.co/SPTy0cDkEH pic.twitter.com/8fCCyPwxPW
— Eric Feigl-Ding (@DrEricDing) January 24, 2021
“If you just look at the reproduction number, you just wouldn’t see that it was in growth underneath at all,”
BREAKING\u2014Good & bad news\u2014The Moderna #COVID19 vaccine fully protected against the UK \U0001f1ec\U0001f1e7 #B117 variant... but was 6x less efficient at neutralizing the South African #B1351 variant in lab test. Moderna is testing a newly synthesized booster for it\u20143rd shot. https://t.co/4s4Ysr5cSp pic.twitter.com/CrCTrgNsre
— Eric Feigl-Ding (@DrEricDing) January 25, 2021
NOT GOOD\u2014so it seems \U0001f1ec\U0001f1e7 government researchers have discovered that the already more contagious #B117 has further acquired the other troublesome E484K mutation seen in \U0001f1ff\U0001f1e6#B1351 & \U0001f1e7\U0001f1f7#P1 variants\u2014in 11 patients. E484k is blamed for partial vaccine-evasion.\U0001f9f5https://t.co/VwjT1WxVL8 pic.twitter.com/HAOahtFqcN
— Eric Feigl-Ding (@DrEricDing) February 1, 2021
Holy cow: 10% of the village of Corzano \U0001f1ee\U0001f1f9 has the #B117 variant\u201410% of all residents! 60% of cases are kids from kindergarten and primary school, other 40% are their parents, says the mayor. Schools in the village now closed. https://t.co/LhfmnuPdUP pic.twitter.com/htN5s0dbCU
— Eric Feigl-Ding (@DrEricDing) February 5, 2021
💡No virus = No mutation.
#ZeroCovid #COVID19 #COVIDzero
SWITCH TO PREMIUM MASKS\u2014I\u2019ve been saying it for months. We need to switch to KN95, KF94, or European FFP2 masks ASAP. The new #b117 #COVID19 is just too contagious. Cloth isn\u2019t enough anymore folks. Germany \U0001f1e9\U0001f1ea & Austria \U0001f1e6\U0001f1f9 mandating on all public transits. https://t.co/MfZhK4Uacg pic.twitter.com/iKQB4yNQrA
— Eric Feigl-Ding (@DrEricDing) January 24, 2021
https://t.co/Dz6NYYEdaX
📌Becomes dominant (B117 🇬🇧)
📌More transmissible (B117), deadlier, or modifies immunity. #COVID19
https://t.co/nBnmm6gdV4
More from Eric Feigl-Ding
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.
4) Who saw this coming? Countless scientists. If only airborne-denialists didn’t muzzle the airborne aerosols science.
\u26a0\ufe0fAIRBORNE >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\u2014and negligently endangered many. #COVID19 \U0001f9f5https://t.co/1YMqDGbD0v pic.twitter.com/DUm5FA3V90
— Eric Feigl-Ding (@DrEricDing) May 8, 2021
HHS @SecBecerra has tested positive for COVID-19 again, the agency just announced. Last time he tested positive was May 18, after attending the G-7 Summit.
— Ariel Cohen (@ArielCohen37) June 13, 2022
2) #BA5 and #BA4 are worrisome. They are surging and they have high reinfection potential. Your past BA1/BA2 doesn’t substantially protect you from #Ba5/4
\U0001f4c8Surging #BA5 & #BA4 variants in both US & England. It\u2019s looking like #Ba5 is the new fastest strain\u2014which has ~10x increased in England in 1 month. Also notice that older #Omicron #B11529/#BA1 are already near *extinct*. I worry the \u201cnew\u201d Omicron BA1 bivalent vaccine is behind. pic.twitter.com/kLNH0gzPk3
— Eric Feigl-Ding (@DrEricDing) June 9, 2022
3) Excess deaths—the new #BA4 & #BA5 variants of the coronavirus are currently the **fastest growing** strains in the US & UK. ➡️They are exponentially replacing all other past strains. Learn from South Africa’s early warning signs and their excess deaths. #CovidIsNotOver #COVID
To anyone pointing to South Africa to suggest the impact of the omicron wave has been 'mild' or that the BA.4/5 haven't had much impact, I'd urge you to look at excess deaths. 29,500 excess deaths since Jan (omicron wave) & a peak of 1,844 excess deaths/wk during BA.4/5 wave.\U0001f9f5 pic.twitter.com/r7kLzmD5dG
— Dr. Deepti Gurdasani (@dgurdasani1) June 11, 2022
4) Is it a Paxlovid rebound for Becerra, as some are asking? Unclear—Paxlovid rebound usually only happens at day 10-14 that we know of and have data. The FDA says it’s 1-2% rebound but I counted 12% from this Pfizer graph submitted to FDA.
4) Look at these 97 Paxlovid patients here with viral RNA load data over time. Of 97, i conservatively counted at least 12 of 97 (12%) with viral load rebound after day 10. Even more if you count rebound after day 5. Thus, FDA\u2019s 1-2% doesn\u2019t match up here. https://t.co/bNoqj5W3Sk pic.twitter.com/B3Kh0Lc1A4
— Eric Feigl-Ding (@DrEricDing) May 5, 2022
5) and yes, #ba5 / #BA4 are very problematic. they are 2x more resistant than even BA2 for neutralizing the virus compared to those who had breakthrough reinfections from older Omicron.
Unfortunately neutralization experiments found that BA.4/5 is 2x more resistant than BA.2 to the blood obtained from vaccinated individuals who had a breakthrough infection with BA.1 or BA.2. 4/ pic.twitter.com/MEOPXuqTgg
— Dr. Jeff Gilchrist (@jeffgilchrist) June 13, 2022
2) That said, the new UK mutated strain is a more transmissible (contagious) variant. Keep transmissibility and illness severity separate. They are two different things. Don’t get them confused.
3) The new UK variant severity study is included in today’s WHO report, to be released soon this afternoon according to WHO sources. Waiting for it to drop. I’ll keep folks posted on the details.
4) Update: here is UK Technical report on #SARSCoV2 variant of concern (B.1.1.7) in 🇬🇧 with prelim findings from their case-control study of no increased severity for the new variant that I reported yesterday.
5) Also keep in a mind that a virus that spreads faster (more contagious) yields much worse total outcomes than a virus that is just merely more severe.
All things equal, a new mutated variant that is more contagious & no more severe is worse. And that is what we now have.
Why a SARS-CoV-2 variant that's 50% more transmissible would in general be a much bigger problem than a variant that's 50% more deadly. A short thread... 1/
— Adam Kucharski (@AdamJKucharski) December 28, 2020