Getting nervous—The #DeltaVariant is not only causing 58.7% surge in cases, but also 72% increase in #COVID19 deaths and 10% increase in 🏥 hospitalizations—just in 1 week. UK 🇬🇧 has been 96-100% #DeltaVariant now for 2 weeks, cases⬆️ for a month. Masks?🧵coronavirus.data.gov.uk
2) Hospital admissions has also been up in Scotland for a month now too. #DeltaVariant dominant in Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿 too
3) UK has also now exceeded Israel for % receiving at least 1 shot. (Canada leads the world in 1 shot but not 2 shots). But not nearly enough to stop #DeltaVariant
4) UK is now 47% 2-dose vaccinated. Israel near 60% 2-dose (mostly Pfizer too). Still not nearly enough to stop all transmission. We must vaccinate more against #DeltaVariant
5) Let me be clear—vaccines do work if you take it, and you take 2 doses especially. Here are vaccine efficacy against symptomatic #DeltaVariant Covid for Pfizer (83% from Scotland, 88% from England), but 60-61% for AstraZeneca. These are good but not leak proof to infect others.
6) Also, hate to be Debbie downer on 1-dose of vaccine… but Oxford-AstraZeneca vaccine’s 1 dose efficacy against #DeltaVariant infection is just… 18%, according to major Scotland study. yes you heard that right… peer reviewed Lancet paper. Get 2 doses folks please!!!
7) Hence this is why even if vaccinated, we still need to mask. And why CDC needs to recant it’s no mask rule given the rise of the #DeltaVariant
8) We must follow the precautionary principle with #DeltaVariant - it is simply too contagious. Fleeting exposures of mere seconds is faster than any previously known variant of #COVID19. Australia 🇦🇺 contact tracing taught is a sobering lesson ⬇️
9) update— UK new cases (virtually all #DeltaVariant) now up 70% from previous week. This is a further acceleration from 58% earlier.

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More from @DrEricDing

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 13 tweets
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
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
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
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
28 Jun
Vaccines for pregnant women—@JohnsHopkins new dashboard reports 91 countries have policies that allow for at least some pregnant people to receive #COVID19 vaccines—45 of which broadly permit or recommend vaccines in pregnancy. But policies vary. 🧵 hub.jhu.edu/2021/06/28/tra…
2) "Data about COVID vaccines' safety for pregnant people and their offspring have generally been reassuring. But countries around the world have taken a variety of positions on COVID vaccination and pregnancy—ranging from highly restrictive policies that bar access to vaccines
3) “to permissive positions in which all pregnant or lactating people can receive vaccine and, in some cases, are recommended and encouraged to do so," said Ruth Karron, director of the Center for Immunization Research at the Johns Hopkins Bloomberg School of Public Health
Read 9 tweets

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