Author Topic: Lasting immunity found after recovery from COVID-19  (Read 578 times)

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Offline PeteS in CA

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Lasting immunity found after recovery from COVID-19
« on: March 01, 2021, 05:57:34 pm »
Lasting immunity found after recovery from COVID-19

https://www.nih.gov/news-events/nih-research-matters/lasting-immunity-found-after-recovery-covid-19

Quote
After people recover from infection with a virus, the immune system retains a memory of it. Immune cells and proteins that circulate in the body can recognize and kill the pathogen if it’s encountered again, protecting against disease and reducing illness severity.

This long-term immune protection involves several components. Antibodies—proteins that circulate in the blood—recognize foreign substances like viruses and neutralize them. Different types of T cells help recognize and kill pathogens. B cells make new antibodies when the body needs them.

...
The researchers found durable immune responses in the majority of people studied. Antibodies against the spike protein of SARS-CoV-2, which the virus uses to get inside cells, were found in 98% of participants one month after symptom onset. As seen in previous studies, the number of antibodies ranged widely between individuals. But, promisingly, their levels remained fairly stable over time, declining only modestly at 6 to 8 months after infection.

Virus-specific B cells increased over time. People had more memory B cells six months after symptom onset than at one month afterwards. Although the number of these cells appeared to reach a plateau after a few months, levels didn’t decline over the period studied.

Levels of T cells for the virus also remained high after infection. Six months after symptom onset, 92% of participants had CD4+ T cells that recognized the virus. These cells help coordinate the immune response. About half the participants had CD8+ T cells, which kill cells that are infected by the virus.

As with antibodies, the numbers of different immune cell types varied substantially between individuals. Neither gender nor differences in disease severity could account for this variability. However, 95% of the people had at least 3 out of 5 immune-system components that could recognize SARS-CoV-2 up to 8 months after infection.

The article doesn't say it explicitly, but the results of the study demonstrate that immunity remains strong for at least as far back as there is data available (the study was published on 1/6/2021, a year and 6 days after news of Covid leaked out of China). IOW, the immunity may be effective for years or for ??.
I am not and never have been a leftist.

If, as anti-Covid-vaxxers claim, https://www.poynter.org/fact-checking/2021/robert-f-kennedy-jr-said-the-covid-19-vaccine-is-the-deadliest-vaccine-ever-made-thats-not-true/ , https://gospelnewsnetwork.org/2021/11/23/covid-shots-are-the-deadliest-vaccines-in-medical-history/ , The Vaccine is deadly, where in the US have Pfizer and Moderna hidden the millions of bodies of those who died of "vaccine injury"?

Millions now living should have died. Anti-Covid-Vaxxer ghouls hardest hit.

Offline Wingnut

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Re: Lasting immunity found after recovery from COVID-19
« Reply #1 on: March 01, 2021, 05:59:11 pm »
Fauci is not going to like this at all.  No not in the least. 
You don’t become cooler with age but you do care progressively less about being cool, which is the only true way to actually be cool.

Offline PeteS in CA

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Re: Lasting immunity found after recovery from COVID-19
« Reply #2 on: March 01, 2021, 06:26:39 pm »
Fauci is not going to like this at all.  No not in the least.

Which Anthony Fauci? There seem to be several.
I am not and never have been a leftist.

If, as anti-Covid-vaxxers claim, https://www.poynter.org/fact-checking/2021/robert-f-kennedy-jr-said-the-covid-19-vaccine-is-the-deadliest-vaccine-ever-made-thats-not-true/ , https://gospelnewsnetwork.org/2021/11/23/covid-shots-are-the-deadliest-vaccines-in-medical-history/ , The Vaccine is deadly, where in the US have Pfizer and Moderna hidden the millions of bodies of those who died of "vaccine injury"?

Millions now living should have died. Anti-Covid-Vaxxer ghouls hardest hit.

Offline Wingnut

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Re: Lasting immunity found after recovery from COVID-19
« Reply #3 on: March 01, 2021, 06:33:41 pm »
Which Anthony Fauci? There seem to be several.
:pondering:
The one on TV to promote his Brand. 
You don’t become cooler with age but you do care progressively less about being cool, which is the only true way to actually be cool.

Online Hoodat

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Re: Lasting immunity found after recovery from COVID-19
« Reply #4 on: March 01, 2021, 07:35:52 pm »
Quote
The researchers found durable immune responses in the majority of people studied. Antibodies against the spike protein of SARS-CoV-2, which the virus uses to get inside cells, were found in 98% of participants one month after symptom onset. As seen in previous studies, the number of antibodies ranged widely between individuals. But, promisingly, their levels remained fairly stable over time, declining only modestly at 6 to 8 months after infection.

Virus-specific B cells increased over time. People had more memory B cells six months after symptom onset than at one month afterwards. Although the number of these cells appeared to reach a plateau after a few months, levels didn’t decline over the period studied.

Levels of T cells for the virus also remained high after infection. Six months after symptom onset, 92% of participants had CD4+ T cells that recognized the virus. These cells help coordinate the immune response. About half the participants had CD8+ T cells, which kill cells that are infected by the virus.

There are two takeaways from this:

1)  SARS-2 acts no differently from what we have learned about every other virus over the last 225 years.  The human body develops long-lasting immunity that fights off re-infection making such instances extremely rare and far milder.

2)  Fauci, the CDC, the WHO, and the Democrat media have been flat out lying to us for over a year now.


People who have already survived this disease are now for all practical purposes "immune".  Furthermore, these survivors now constitute a buffer protecting others from the disease.  They should be encouraged to pioneer the maskless reopening of society.  And they should be joined in that endeavor by anyone receiving the J&J vaccine.

Fauci and his political allies should be held accountable for all the lies and misinformation they have been pushing forward since 2019.
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Offline Smokin Joe

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Re: Lasting immunity found after recovery from COVID-19
« Reply #5 on: March 01, 2021, 11:41:36 pm »
There are two takeaways from this:

1)  SARS-2 acts no differently from what we have learned about every other virus over the last 225 years.  The human body develops long-lasting immunity that fights off re-infection making such instances extremely rare and far milder.

2)  Fauci, the CDC, the WHO, and the Democrat media have been flat out lying to us for over a year now.


People who have already survived this disease are now for all practical purposes "immune".  Furthermore, these survivors now constitute a buffer protecting others from the disease.  They should be encouraged to pioneer the maskless reopening of society.  And they should be joined in that endeavor by anyone receiving the J&J vaccine.

Fauci and his political allies should be held accountable for all the lies and misinformation they have been pushing forward since 2019.
There is no appropriate and adequate punishment which would not be banned under the Constitution.
How God must weep at humans' folly! Stand fast! God knows what he is doing!
Seventeen Techniques for Truth Suppression

Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive. It would be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience.

C S Lewis