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Eric Feigl-Ding Profile picture
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28 Jun, 6 tweets, 4 min read
📍New phase—“we're entering a new phase of this pandemic, with the more contagious #DeltaVariant” says AUS experts. First multi-region epidemic in 🇦🇺 in months. The escalation in #COVID19 has prompted lockdowns in Sydney and Darwin. Mask mandates too.
bbc.com/news/world-aus…
2) the #DeltaVariant is 2x more transmissible and 2.5-4x greater risk of hospitalization, and it is 1 dose vaccine evading. Australia 🇦🇺 is desperately trying to avoid a future fate of UK… where hospitalizations and deaths rapidly rising.
3) One dose is simply not enough. 18-30% is pretty darn low efficacy for #DeltaVariant infection. 2 dose please. Minimum. But even then with Delta, Pfizer drops to 79% and AZ to 60%. We need masks and mitigation on top.
4) this is why the WHO came out strong on masks for even vaccinated to fight #DeltaVariant, in a sharp rebuke of the CDC’s decision to drop masks of vaccinated.
5) Most fast. Have no regrets. That’s the only way to bread a fast spreading #DeltaVariant. Heed @DrMikeRyan advice.
6) “more ruthless” is definitely a big escalation for #DeltaVariant. An expert blames Perth outbreak from a gym due to it.

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More from @DrEricDing

Eric Feigl-Ding Profile picture
30 Jun
Shocker—school mask mandates were rescinded for early teens in UK🇬🇧 on May 17th—#COVID19 cases rise. More shocker—schools close for holidays—cases fall. Even more shocking—cases rise again when schools reopen (with no masks). In other news, the sun☀️ also rises when 🌍 rotates. Image
2) Do we see this pattern with UK 🇬🇧 school #COVID19 absenteeism? Hell yes. Cases fall after holidays and soar again as school duration goes on. Image
3) Wearing masks should not be that hard especially to protect vulnerable kids who can’t get vaccines yet.
Read 4 tweets
Eric Feigl-Ding Profile picture
29 Jun
Fully vaccinated are recommended to wear masks indoors again (WHO & LA County). ➡️"The reason you're hearing about masks coming back is basically still to try and slow down the spread of what is clearly a more transmissible #DeltaVariant.” @drsanjaygupta🧵
2) This follows the move by WHO Senior scientists to recommend masks again to contain the spread of #DeltaVariant
3) Los Angeles county soon followed with their strong recommendation to mask indoors even if fully vaccinated. LA is now almost 50% #DeltaVariant #COVID19
Read 14 tweets
Eric Feigl-Ding Profile picture
29 Jun
All-time record high #COVID19 cases in Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿—more than even this past winter surge. Furthermore, *hospitalizations and ICUs on the rise*. The #DeltaVariant is dominant in Scotland of course. Thread 🧵 Image
2) Most of the surge in Scotland is among younger age groups. But it is increasing in the elderly as well, albeit more slowly. But most people over 45 are vaccinated yet cases still rising. It’s because of the #DeltaVariant Image
3) Scotland is slightly ahead of England in vaccinations. 🏴󠁧󠁢󠁳󠁣󠁴󠁿 is 49% fully vaccinated. Yet it still hit a record high #COVID19 caseload. Don’t anyone dare say that is near herd immunity threshold. It’s not even close damnit, especially with a higher R0 for #DeltaVariant of 6-8. Image
Read 5 tweets
Eric Feigl-Ding Profile picture
29 Jun
📍BREAKING—with #DeltaVariant now surging almost 50% of all #COVID19, Los Angeles County now "strongly recommends" everyone, **including folks fully vaccinated**, to wear masks indoors to curb the #Delta variant, especially when “you don’t know everyone’s vaccination status”. Image
2) This comes on the heels of the WHO recommending the same - that vaccinated people should still mask given then incredibly fast transmission of the #DeltaVariant and its unique severity.
3) In the UK, the #DeltaVariant is now nearly all cases, it is causing a 69% increase in cases in one week (just yesterday it was 58%), along with increasing hospitalizations and deaths.
Read 26 tweets
Eric Feigl-Ding Profile picture
29 Jun
A third dose of the AstraZeneca vaccine can boost immune protection. In new trial, 3rd dose of AZ vaccine nearly seven months after first two shots—participants reported higher antibody levels after the third dose than a month after the second. #COVID19 🧵 nytimes.com/2021/06/28/wor…
2) The finding indicates that the AstraZeneca vaccine could be an option should third shots end up being needed, for example, to extend immunity. To date, the vaccine has been given as two doses, typically between four and 12 weeks apart.
3) The new data, detailed in a preprint manuscript that has not yet been peer reviewed, came from 90 study volunteers in 🇬🇧 who were among the earliest to receive the shots in a clinical trial. This past March, they were given a third dose, roughly 30 weeks after their second.
Read 4 tweets
Eric Feigl-Ding Profile picture
28 Jun
A mixed schedule of vaccines where a shot of Pfizer #COVID19 vaccine is given four weeks after an AstraZeneca shot will produce better immune responses than giving another dose of AstraZeneca, an Oxford study said on Monday. 🧵 reuters.com/world/uk/immun…
2) study compared mixed two-dose schedules of Pfizer and AstraZeneca vaccines, and found they produced high concentrations of antibodies against the spike protein. The data provides support for the decision of some countries offering alternatives to AstraZeneca as a second shot
3) The highest antibody response was seen in people receiving two doses of Pfizer vaccine, with both mixed schedules producing better responses than two doses of AstraZeneca vaccine.
Read 6 tweets

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