Good news: Immunity to #COVID19 lasts at least a year, improving over time especially after vaccination.

Cautious news: Vaccinated who were never infected most likely will need [booster] shots, plus infected who did not produce a robust immune response.
nytimes.com/2021/05/26/hea…
2) 2 reports looked at people who had been exposed to the coronavirus about a year earlier. Cells that retain a memory of the virus persist in the bone marrow and may churn out antibodies whenever needed, according to one of the studies, published in the journal Nature.
3) The other study, posted online at BioRxiv, a site for biology research, found that these so-called memory B cells continue to mature and strengthen for at least 12 months after the initial infection.
4) “in fact, memory B cells produced in response to infection with SARS-CoV-2 and enhanced with vaccination are so potent that they thwart even variants of the virus, negating the need for boosters, according to Michel Nussenzweig, an immunologist at Rockefeller University”
5) ““People who were infected and get vaccinated really have a terrific response, a terrific set of antibodies, because they continue to evolve their antibodies,” Dr. Nussenzweig said. “I expect that they will last for a long time.”
6) The result may not apply to protection derived from vaccines alone, because immune memory is likely to be organized differently after immunization, compared with that following natural infection….
7) …That means people who have not had Covid-19 and have been immunized may eventually need a booster shot, Dr. Nussenzweig said. “That’s the kind of thing that we will know very, very soon,” he said.

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More from @DrEricDing

29 May
Welp—“Vietnam has uncovered a new Covid-19 variant combining characteristics of the two existing variants first found in India🇮🇳(#B16172) & UK🇬🇧(#B117)” 🇻🇳 Health Minister said. “The new variant is very dangerous” and “spreads quickly by air”. #COVID19 🧵
straitstimes.com/asia/se-asia/v… Image
2) here is the curve in Vietnam. It’s pretty sharp of an increase.
3) A “hybrid”—
“The new one is an Indian variant with mutations that originally belong to the UK variant,” Mr Long was quoted as saying, adding that authorities would soon announce the name and detailed characteristics of the newly discovered variant.
Read 8 tweets
29 May
📍600 prisoners currently jailed on a #COVID19-infected prison ship🚢 dubbed “Death trap on the East River”, where audio intercepts described chemical agents & “enhanced restraints” used daily. In April 2021, 5 prison units under COVID quarantine. HT @ava
2) The terrible conditions on the South Bronx prison ship. @TakeBackTheBX is organizing protests. @ava says @laurapoitras is investigating with #seanvegezzi, who are sharing the intercepted audio. ImageImage
3) the Vernon C. Bain Correctional Center is an infamous floating jail in the East River at edge of the South Bronx. Built in the 1990s to alleviate overcrowding at Rikers & can house 800 male inmates—many others go there when they can't afford to pay bail
wnyc.org/story/paying-b…
Read 4 tweets
28 May
📍BREAKING—Hospitalizations for #COVID19 has spiked up 72% in just 8 days, according to latest UK 🇬🇧 govt data. This follows a surge in #B16172 cases. Deaths have also begun to increase. UK is among the most vaccinated countries, with ~57% with at least 1 dose, and 35% fully.🧵 Image
2) On a weekly cumulative basis, weekly hospitalizations has increased 25% versus the previous week.

Worrisome is that weekly deaths has increased 38% as well, according to SAGE member @GabrielScally, who is not very optimistic about the data. Image
3) Specifically, Dr Scally’s exact words were “not looking positive in #COVID19 unfortunately”.
Read 14 tweets
28 May
3 million excess pandemic deaths in India 🇮🇳…

Let this sink in—the tragedy that continues to unfold in India has claimed a very large death toll of close to 3 million. While uncertainty surrounds these estimates, alternative methods suggest they are in the ballpark. #COVID19
2) Reality in 2021 is that #COVID19 is now a developing country pandemic. brookings.edu/blog/future-de…
3) Roughly 40,000 excess pandemic deaths a day worldwide. Insane. economist.com/briefing/2021/… Image
Read 4 tweets
28 May
Let’s call for a massive push to vaccinate 𝗮𝘁 𝗹𝗲𝗮𝘀𝘁:

📍10% of every country's population by September

📍30% by the end of 2021.

The @WHO is calling on #WHA74 to rally such goals.

“If any country is left behind, we are all held back”. ~@DrTedros
2) If wealthier vaccinated countries don’t help, this will continue to happen. Neglect of the developing world will lead to hurting the world continually.

This is why we must share vaccines and unite.
3) if we don’t share vaccines, then richer countries will still be hit. We are all connected. No country is invulnerable.
Read 4 tweets
28 May
DISGUSTING—Florida governor Ron DeSantis, now threatens to block cruise ships 🛳 from resuming if it requires passengers vaccinated—signing into law a fine of $5,000 per person that is ask to show proof of vaccination—DeSantis will not back down. #COVID19
nymag.com/intelligencer/…
2) “Cruise ships are, of course, a well-known vector for the coronavirus. They inherently pack a lot of people into a confined space, and have terrifyingly high rates of infection.
3) “Aside from the public-health ramifications, it’s difficult to imagine cruises luring anything close to their pre-pandemic number of customers without being able to give them the assurance that their fellow passengers will be vaccinated.”
Read 6 tweets

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