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“Had COVID? You’ll probably make antibodies for a lifetime”/ Nature

By Meryl Nass, MD | June 7, 2021

Looks like the Nature publishing company is trying to regain some respectability. They are publishing information that has been suppressed (mostly) since the start of the pandemic. It turns out that Covid immunity following infection appears to be life-long. Even for mild cases. (Of course, you heard it from me that immunity was going to be long-lasting many months ago.)

THIS IS WHY YOU SHOULD NOT GET VACCINATED. Vaccination can sometimes interfere with developing long-lasting immunity. That is one of the things you need to test for when you develop a vaccine. But of course, that was not done in the case of the Covid vaccines.

And so the manufacturers and the governments have already signed contracts for many doses of Covid vaccines per person in the US and EU. This is something they never should have done without knowing the extent of populatin immunity and following the immune response over time post-vaccination. It makes absolutely no sense, unless you consider that they may have something they would like injected along with the Covid vaccines.

I still must return to the disaster of vaccinating people who have natural immunity. CDC and FDA do not want anyone to be able to prove they are immune naturally, so they have not approved or authorized even a single test for that purpose. Pretty clever, huh? The reason is to force everyone to be vaccinated, even though the side effects are more pronounced in those who have recovered, and you get no benefit in terms of added immunity. Those who claim you do are liars. You may get a brief boost in antibody levels but it declines quickly and you are back where you started:  95% are immune after the disease, which is better than after the vaccine. Better than after any vaccine, with the possible exceptions of the live vaccines smallpox and measles. (I know, I know, they claim 95% efficacy for the mRNA vaccines, but the study methods used to prove it were worthless. See Dr Sin Hang Lee’s Petition to the FDA last December, which I edited.) There wouldn’t be a coverup regarding breakthrough cases in the vaccinated population if the efficacy was truly 95%. (CDC does not want these cases reported unles they are in hospital or die, and then you also need to have a positive PCR test done with a cycle threashold no greater than 28 in order to report. That is how CDC is belatedly minimizing reports of breakthrough cases.

But here is the good news, and it is very very good.  From Nature :

Many people who have been infected with SARS-CoV-2 will probably make antibodies against the virus for most of their lives. So suggest researchers who have identified long-lived antibody-producing cells in the bone marrow of people who have recovered from COVID-191.

The study provides evidence that immunity triggered by SARS-CoV-2 infection will be extraordinarily long-lasting. Adding to the good news, “the implications are that vaccines will have the same durable effect”, says Menno van Zelm, an immunologist at Monash University in Melbourne, Australia.

Antibodies — proteins that can recognize and help to inactivate viral particles — are a key immune defence. After a new infection, short-lived cells called plasmablasts are an early source of antibodies.

But these cells recede soon after a virus is cleared from the body, and other, longer-lasting cells make antibodies: memory B cells patrol the blood for reinfection, while bone marrow plasma cells (BMPCs) hide away in bones, trickling out antibodies for decades.

“A plasma cell is our life history, in terms of the pathogens we’ve been exposed to,” says Ali Ellebedy, a B-cell immunologist at Washington University in St. Louis, Missouri, who led the study, published in Nature on 24 May.

Researchers presumed that SARS-CoV-2 infection would trigger the development of BMPCs — nearly all viral infections do — but there have been signs that severe COVID-19 might disrupt the cells’ formation2. Some early COVID-19 immunity studies also stoked worries, when they found that antibody levels plunged not long after recovery3.

Ellebedy’s team tracked antibody production in 77 people who had recovered from mostly mild cases of COVID-19. As expected, SARS-CoV-2 antibodies plummeted in the four months after infection. But this decline slowed, and up to 11 months after infection, the researchers could still detect antibodies that recognized the SARS-CoV-2 spike protein.

To identify the source of the antibodies, Ellebedy’s team collected memory B cells and bone marrow from a subset of participants. Seven months after developing symptoms, most of these participants still had memory B cells that recognized SARS-CoV-2. In 15 of the 18 bone-marrow samples, the scientists found ultra-low but detectable populations of BMPCs whose formation had been triggered by the individuals’ coronavirus infections 7–8 months before. Levels of these cells were stable in all five people who gave another bone-marrow sample several months later.

June 7, 2021 - Posted by | Science and Pseudo-Science, Timeless or most popular | ,

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