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Latest on Herd Immunity #7899719 07/13/20 11:29 PM
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https://www.technologyreview.com/20...isappear-in-months-a-new-study-suggests/

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Immunity to covid-19 could disappear in months, a new study suggests
Category:
Biotechnology
PostedJul 13

The lowdown: Immunity to covid-19 may be short-lived, according to a new longitudinal study of people who have caught the disease and recovered.

The study: Researchers at King’s College London repeatedly tested 96 patients and health-care workers at Guy’s and St Thomas’ NHS Foundation Trust for antibodies between March and June. All the participants were confirmed to have had covid-19, either via a PCR test or a positive antibody test. The researchers found that levels of virus-fighting antibodies peaked about three weeks after symptoms started and then rapidly fell away. Although 60% of participants produced a “potent” antibody response while they had covid-19, only 17% had the same level of potency at the end of the three-month testing period. Antibody levels were higher and longer-lasting in people who had had more severe cases of covid-19. For some milder cases, it was impossible to detect any antibodies at all at the end of the three months. The research is published in a preprint paper in medRxiv, which means the findings have yet to be subjected to peer review.

What it means: The study raises the prospect that, like other coronaviruses, covid-19 could reinfect people repeatedly. If that’s the case, “herd immunity” may never arrive, either through a one-shot vaccine or through community spread of the virus, as any protective antibodies would wane with time. However, antibodies are not the only way people can fight off covid-19. T cells, which seek and destroy cells infected with SARS-CoV-2, could also provide some protection. In short, we have not yet generated enough data from patients to be able to draw conclusions on immunity with a high degree of certainty. There have been anecdotal reports of people catching covid-19 for a second time, but none have been confirmed.


Combat Infantryman, the ultimate hunter where the prey shoots back.
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Re: Latest on Herd Immunity [Re: dogcatcher] #7899722 07/13/20 11:33 PM
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Covid parties are so June.

Re: Latest on Herd Immunity [Re: dogcatcher] #7899723 07/13/20 11:33 PM
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Originally Posted by dogcatcher
https://www.technologyreview.com/20...isappear-in-months-a-new-study-suggests/

Quote
Immunity to covid-19 could disappear in months, a new study suggests
Category:
Biotechnology
PostedJul 13

The lowdown: Immunity to covid-19 may be short-lived, according to a new longitudinal study of people who have caught the disease and recovered.

The study: Researchers at King’s College London repeatedly tested 96 patients and health-care workers at Guy’s and St Thomas’ NHS Foundation Trust for antibodies between March and June. All the participants were confirmed to have had covid-19, either via a PCR test or a positive antibody test. The researchers found that levels of virus-fighting antibodies peaked about three weeks after symptoms started and then rapidly fell away. Although 60% of participants produced a “potent” antibody response while they had covid-19, only 17% had the same level of potency at the end of the three-month testing period. Antibody levels were higher and longer-lasting in people who had had more severe cases of covid-19. For some milder cases, it was impossible to detect any antibodies at all at the end of the three months. The research is published in a preprint paper in medRxiv, which means the findings have yet to be subjected to peer review.

What it means: The study raises the prospect that, like other coronaviruses, covid-19 could reinfect people repeatedly. If that’s the case, “herd immunity” may never arrive, either through a one-shot vaccine or through community spread of the virus, as any protective antibodies would wane with time. However, antibodies are not the only way people can fight off covid-19. T cells, which seek and destroy cells infected with SARS-CoV-2, could also provide some protection. In short, we have not yet generated enough data from patients to be able to draw conclusions on immunity with a high degree of certainty. There have been anecdotal reports of people catching covid-19 for a second time, but none have been confirmed.

Not a big sample size at all.......for those that are frightened grow a pair......

Last edited by Pitchfork Predator; 07/13/20 11:35 PM.

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Re: Latest on Herd Immunity [Re: dogcatcher] #7899733 07/13/20 11:44 PM
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Local doctor here had it in March and has it again now. My wife has a patient now that's positive and was also positive in March.


Re: Latest on Herd Immunity [Re: dogcatcher] #7899738 07/13/20 11:45 PM
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Keep your immune system beefed up, Vitamin C, and D


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Re: Latest on Herd Immunity [Re: dogcatcher] #7899742 07/13/20 11:49 PM
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https://www.vox.com/2020/7/12/21321653/getting-covid-19-twice-reinfection-antibody-herd-immunity

Quote
My patient caught Covid-19 twice. So long to herd immunity hopes.
Emerging cases of Covid-19 reinfection suggest herd immunity is wishful thinking.

By D. Clay Ackerly Jul 12, 2020, 9:40am EDT


Medical staff from myCovidMD provide free Covid-19 antibody testing in Inglewood, California, on June 19, 2020. The unknowns of immune responses to the coronavirus currently outweigh the knowns. Mark Ralston/AFP/Getty Images
“Wait. I can catch Covid twice?” my 50-year-old patient asked in disbelief. It was the beginning of July, and he had just tested positive for SARS-CoV-2, the virus that causes Covid-19, for a second time — three months after a previous infection.

While there’s still much we don’t understand about immunity to this new illness, a small but growing number of cases like his suggest the answer is yes.

Covid-19 may also be much worse the second time around. During his first infection, my patient experienced a mild cough and sore throat. His second infection, in contrast, was marked by a high fever, shortness of breath, and hypoxia, resulting in multiple trips to the hospital.

Recent reports and conversations with physician colleagues suggest my patient is not alone. Two patients in New Jersey, for instance, appear to have contracted Covid-19 a second time almost two months after fully recovering from their first infection. Daniel Griffin, a physician and researcher at Columbia University in New York, recently described a case of presumed reinfection on the This Week in Virology podcast.

It is possible, but unlikely, that my patient had a single infection that lasted three months. Some Covid-19 patients (now dubbed “long haulers”) do appear to suffer persistent infections and symptoms.

My patient, however, cleared his infection — he had two negative PCR tests after his first infection — and felt healthy for nearly six weeks.

The emerging long-term complications of Covid-19, explained
I believe it is far more likely that my patient fully recovered from his first infection, then caught Covid-19 a second time after being exposed to a young adult family member with the virus. He was unable to get an antibody test after his first infection, so we do not know whether his immune system mounted an effective antibody response or not.

Regardless, the limited research so far on recovered Covid-19 patients shows that not all patients develop antibodies after infection. Some patients, and particularly those who never develop symptoms, mount an antibody response immediately after infection only to have it wane quickly afterward — an issue of increasing scientific concern.


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Re: Latest on Herd Immunity [Re: TCM3] #7899743 07/13/20 11:50 PM
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Originally Posted by TCM3
Keep your immune system beefed up, Vitamin C, and D


Also take iron if your hemoglobin is low. My wife is a nurse and works with covid patients. It affects those with low hemoglobin worse. She explained but sounded like a foreign language.


Re: Latest on Herd Immunity [Re: Pitchfork Predator] #7899744 07/13/20 11:50 PM
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Originally Posted by Pitchfork Predator
Originally Posted by dogcatcher
https://www.technologyreview.com/20...isappear-in-months-a-new-study-suggests/

Quote
Immunity to covid-19 could disappear in months, a new study suggests
Category:
Biotechnology
PostedJul 13

The lowdown: Immunity to covid-19 may be short-lived, according to a new longitudinal study of people who have caught the disease and recovered.

The study: Researchers at King’s College London repeatedly tested 96 patients and health-care workers at Guy’s and St Thomas’ NHS Foundation Trust for antibodies between March and June. All the participants were confirmed to have had covid-19, either via a PCR test or a positive antibody test. The researchers found that levels of virus-fighting antibodies peaked about three weeks after symptoms started and then rapidly fell away. Although 60% of participants produced a “potent” antibody response while they had covid-19, only 17% had the same level of potency at the end of the three-month testing period. Antibody levels were higher and longer-lasting in people who had had more severe cases of covid-19. For some milder cases, it was impossible to detect any antibodies at all at the end of the three months. The research is published in a preprint paper in medRxiv, which means the findings have yet to be subjected to peer review.

What it means: The study raises the prospect that, like other coronaviruses, covid-19 could reinfect people repeatedly. If that’s the case, “herd immunity” may never arrive, either through a one-shot vaccine or through community spread of the virus, as any protective antibodies would wane with time. However, antibodies are not the only way people can fight off covid-19. T cells, which seek and destroy cells infected with SARS-CoV-2, could also provide some protection. In short, we have not yet generated enough data from patients to be able to draw conclusions on immunity with a high degree of certainty. There have been anecdotal reports of people catching covid-19 for a second time, but none have been confirmed.

Not a big sample size at all.......for those that are frightened grow a pair......

Yeah, stick your head in the sand.

Re: Latest on Herd Immunity [Re: dogcatcher] #7899751 07/13/20 11:56 PM
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Well, I guess we don't have to worry about taking a vaccine anymore.

And a very large study that was just conducted in Spain found that some patients that had initially successfully developed antibodies “no longer had antibodies weeks later”…

A large study from Spain showed that antibodies can disappear weeks after people have tested positive, causing some to question how possible it will be to attain herd immunity.

A study published in medical journal Lancet showed 14% of people who tested positive for antibodies no longer had antibodies weeks later.

Needless to say, this is absolutely devastating news, and it has very serious implications for vaccine development…


Such findings have implications for vaccine development, since the efficacy of a vaccine hinges on the idea that a dose of weakened or dead virus can prompt your body to generate antibodies that protect you from future infection. If those antibodies are fleeting, a vaccine’s protection would be fleeting too.

Short-lived antibodies also diminish hopes of achieving widespread or permanent herd immunity.

If antibodies can fade in some patients within weeks, and if just about everyone loses them after a few months, that would render any vaccine almost completely useless.


http://themostimportantnews.com/arc...-making-about-covid-19-may-be-dead-wrong


This cannot be fixed at the voting booth.. Wake Up You Morons!
Re: Latest on Herd Immunity [Re: Guy] #7899752 07/13/20 11:56 PM
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Originally Posted by Guy
Originally Posted by Pitchfork Predator
Originally Posted by dogcatcher
https://www.technologyreview.com/20...isappear-in-months-a-new-study-suggests/

Quote
Immunity to covid-19 could disappear in months, a new study suggests
Category:
Biotechnology
PostedJul 13

The lowdown: Immunity to covid-19 may be short-lived, according to a new longitudinal study of people who have caught the disease and recovered.

The study: Researchers at King’s College London repeatedly tested 96 patients and health-care workers at Guy’s and St Thomas’ NHS Foundation Trust for antibodies between March and June. All the participants were confirmed to have had covid-19, either via a PCR test or a positive antibody test. The researchers found that levels of virus-fighting antibodies peaked about three weeks after symptoms started and then rapidly fell away. Although 60% of participants produced a “potent” antibody response while they had covid-19, only 17% had the same level of potency at the end of the three-month testing period. Antibody levels were higher and longer-lasting in people who had had more severe cases of covid-19. For some milder cases, it was impossible to detect any antibodies at all at the end of the three months. The research is published in a preprint paper in medRxiv, which means the findings have yet to be subjected to peer review.

What it means: The study raises the prospect that, like other coronaviruses, covid-19 could reinfect people repeatedly. If that’s the case, “herd immunity” may never arrive, either through a one-shot vaccine or through community spread of the virus, as any protective antibodies would wane with time. However, antibodies are not the only way people can fight off covid-19. T cells, which seek and destroy cells infected with SARS-CoV-2, could also provide some protection. In short, we have not yet generated enough data from patients to be able to draw conclusions on immunity with a high degree of certainty. There have been anecdotal reports of people catching covid-19 for a second time, but none have been confirmed.

Not a big sample size at all.......for those that are frightened grow a pair......

Yeah, stick your head in the sand.

Not me..... I will continue to live my life...... Not stick my head in the sand or hide.....


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Re: Latest on Herd Immunity [Re: dogcatcher] #7900047 07/14/20 04:55 AM
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Man, the scientist that developed this virus did a really good job.


Originally Posted by Scott W
Re: Latest on Herd Immunity [Re: Scott W] #7900348 07/14/20 03:56 PM
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kind of a big deal
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Originally Posted by Scott W
Man, the scientist that developed this virus did a really good job.


You mean helped evolve,


Donate to TX Youth hunting program.... better to donate then to waste it in taxes

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Re: Latest on Herd Immunity [Re: dogcatcher] #7900352 07/14/20 04:05 PM
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If this is true then the infection rate would be way way way off when testing for antibodies....... so this would mean the virus would be way way way less deadly then we think.....

Are the "memory antibodies" (sorry I dont know the scientific name)....still present?

Re: Latest on Herd Immunity [Re: dogcatcher] #7900368 07/14/20 04:27 PM
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We will not begin to truly know anything about this until after the election. Even then, politics will still play a part, just not as big of a part.


Re: Latest on Herd Immunity [Re: dogcatcher] #7900369 07/14/20 04:27 PM
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Like the Spanish Flu and all others before it, COVID-19 is strengthening the health of the human race. From a health perspective and the ability to ward off sickness and disease, humans are no different than anything else that lives on this planet.


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Re: Latest on Herd Immunity [Re: dogcatcher] #7900370 07/14/20 04:30 PM
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Seems like if you catch it, you need to go out and be continually exposed to it after you heal and antibodies develop. That would keep antibody volume up in my mind

Re: Latest on Herd Immunity [Re: TLew] #7900379 07/14/20 04:46 PM
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Originally Posted by TLew
Seems like if you catch it, you need to go out and be continually exposed to it after you heal and antibodies develop. That would keep antibody volume up in my mind



That’s crazy talk. Who needs antibodies when people can be threatened into mask and isolation compliance with much more politically expedient economic shutdowns?


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