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No evidence of Corona Reinfection



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amother
OP


 

Post Mon, May 04 2020, 12:24 am
From a country that was one of the best at aggressive testing, containing the virus, and tracking the infection.


https://gizmodo.com/no-evidenc.....80554

Quote:
For one, the typical PCR (polymerase chain reaction) tests used to find the virus in people aren’t designed to look for “live” virus. Rather, they detect minute traces of viral RNA, genetic material that is then amplified in the lab. These traces can come from an active infection in a person, but they can also come from dead viral particles left behind in the body’s cells. And the latter is what seems to be happening, according to Oh Myoung-don, an infectious disease specialist at Seoul National University and head of South Korea’s central clinical committee for emerging disease control.

.....

Oh also said that it’s unlikely the virus is somehow reactivating in the body after an initial infection, which some doctors have theorized could explain the cases. Unlike some viruses that can lay dormant in the body, such as HIV, the coronavirus behind covid-19 doesn’t seem to directly hijack a cell’s command center, the nucleus. “This means it does not cause chronic infection or recurrence,” Oh said.
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amother
Aqua


 

Post Mon, May 04 2020, 12:29 am
According to the rest of the article
Quote:

Oh and his team’s conclusions should be verified by other researchers, but this is certainly a promising sign. That said, even if reinfection isn’t happening in these specific cases, it doesn’t mean it’s impossible for the virus to reinfect people down the line. Experts generally agree that surviving an infection should grant some degree of immunity, based on what we know about other human coronaviruses, but it’s unknown how long this immunity should generally last, and we still don’t have a reliable way to tell if and when someone is immune.
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amother
Pewter


 

Post Mon, May 04 2020, 12:35 am
Just curious, The USA wasn't the first Corona nation. Ok, China doesn't count because, you know, China. But the other countries that preceded the US, how are they faring now? Any cases of reinfection at all?
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amother
Aqua


 

Post Mon, May 04 2020, 12:44 am
amother [ Pewter ] wrote:
Just curious, The USA wasn't the first Corona nation. Ok, China doesn't count because, you know, China. But the other countries that preceded the US, how are they faring now? Any cases of reinfection at all?


Israel had a case they couldnt explain .
Man had 2 negatives 24 hours apart. A week later had positive again.
It could’ve been faulty tests.

Also America is barely testing.
My neighbor was sick around Purim. Lost all taste and smell. By pesach was fine. She now lost her taste and smell again. She never tested positive or negative so we’ll never know.

And who has immunity?. I know couple in 60s. Wife had it really bad. Husband was never sick. Tested for antibodies. Husbands numbers were really high. And wife who was sick barely had any.
So what does that mean?
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amother
OP


 

Post Mon, May 04 2020, 12:45 am
amother [ Aqua ] wrote:
According to the rest of the article
Quote:

Oh and his team’s conclusions should be verified by other researchers, but this is certainly a promising sign. That said, even if reinfection isn’t happening in these specific cases, it doesn’t mean it’s impossible for the virus to reinfect people down the line. Experts generally agree that surviving an infection should grant some degree of immunity, based on what we know about other human coronaviruses, but it’s unknown how long this immunity should generally last, and we still don’t have a reliable way to tell if and when someone is immune.


Yeah, there are no definites of anything in life, but generally they believe the immunity should last at least a year or two.

And the way to tell if someone is immune is if they had a positive test at some point, and are no longer sick. The problem is that very few tests were in the US.

The point is, once people have had it and tested positive, why can't they be released into society? Why can't we have people who have had it start up our schools, etc etc.
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amother
Aqua


 

Post Mon, May 04 2020, 12:48 am
amother [ OP ] wrote:
Yeah, there are no definites of anything in life, but generally they believe the immunity should last at least a year or two.

And the way to tell if someone is immune is if they had a positive test at some point, and are no longer sick. The problem is that very few tests were in the US.

The point is, once people have had it and tested positive, why can't they be released into society? Why can't we have people who have had it start up our schools, etc etc.


Where did it say there is immunity for 1-2 years? The article actually says we don’t know how long immunity lasts. It hasn’t been around long enough to test immunity. Did you see that in a study?
And not everyone who has it has antibodies.
And we don’t yet know what the antibody numbers mean.
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amother
Aqua


 

Post Mon, May 04 2020, 12:57 am
https://www.mailman.columbia.e.....overy

This study says ppl can catch it again within the year

Quote:
New research by Columbia University Mailman School of Public Health experts finds that reinfections with endemic coronaviruses are not uncommon, even within a year of prior infection. The study on the four endemic coronaviruses—not including SARS-CoV-2, the virus that causes COVID-19—found that when reinfection occurred, it was not associated with less severe symptoms. Instead, genetic factors may be a greater determinant of the severity of an infection. Individuals who were asymptomatic during their first infection did not experience symptoms during subsequent infections, and members of the same family reported similar symptom severity.


Quote:
As the COVID-19 pandemic progresses, infecting millions of people worldwide, a key question is whether individuals are prone to repeat infection. The evidence from endemic coronaviruses suggests that immunity is short-lived and re-infection is common within one year, with symptom severity possibly more a function of genetics than the presence or absence of antibodies,” says Shaman. “Research on endemic coronaviruses, along with findings for SARS and MERS, provide context for understanding protective immunity against repeat SARS-CoV-2 infections.”
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amother
OP


 

Post Mon, May 04 2020, 1:03 am
amother [ Aqua ] wrote:
https://www.mailman.columbia.edu/public-health-now/news/risk-coronavirus-reinfection-remains-after-recovery

This study says ppl can catch it again within the year

Quote:
New research by Columbia University Mailman School of Public Health experts finds that reinfections with endemic coronaviruses are not uncommon, even within a year of prior infection. The study on the four endemic coronaviruses—not including SARS-CoV-2, the virus that causes COVID-19—found that when reinfection occurred, it was not associated with less severe symptoms. Instead, genetic factors may be a greater determinant of the severity of an infection. Individuals who were asymptomatic during their first infection did not experience symptoms during subsequent infections, and members of the same family reported similar symptom severity.


Quote:
As the COVID-19 pandemic progresses, infecting millions of people worldwide, a key question is whether individuals are prone to repeat infection. The evidence from endemic coronaviruses suggests that immunity is short-lived and re-infection is common within one year, with symptom severity possibly more a function of genetics than the presence or absence of antibodies,” says Shaman. “Research on endemic coronaviruses, along with findings for SARS and MERS, provide context for understanding protective immunity against repeat SARS-CoV-2 infections.”


I don't know where that study got that data, but nearly everyone else says that immunity from other coronaviruses are anywhere between 1 to 3 years.

https://www.medscape.com/viewarticle/870592_3

https://www.sciencedirect.com/.....04016

https://www.ncbi.nlm.nih.gov/pubmed/27192543

I can post like twenty more. I think there's a lot of knee-jerk fear that's coloring things here.
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amother
Crimson


 

Post Mon, May 04 2020, 1:54 am
amother [ OP ] wrote:
I don't know where that study got that data, but nearly everyone else says that immunity from other coronaviruses are anywhere between 1 to 3 years.

https://www.medscape.com/viewarticle/870592_3

https://www.sciencedirect.com/.....04016

https://www.ncbi.nlm.nih.gov/pubmed/27192543

I can post like twenty more. I think there's a lot of knee-jerk fear that's coloring things here.


Considering what we've seen from this strain I think comparing it to other coronaviruses tells us nothing of its trajectory. Its SARS-CoV-2 . There's a whole other element in there, not a simple coronavirus
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tweety1




 
 
    
 

Post Mon, May 04 2020, 2:22 am
amother [ Aqua ] wrote:
Israel had a case they couldnt explain .
Man had 2 negatives 24 hours apart. A week later had positive again.
It could’ve been faulty tests.

Also America is barely testing.
My neighbor was sick around Purim. Lost all taste and smell. By pesach was fine. She now lost her taste and smell again. She never tested positive or negative so we’ll never know.

And who has immunity?. I know couple in 60s. Wife had it really bad. Husband was never sick. Tested for antibodies. Husbands numbers were really high. And wife who was sick barely had any.
So what does that mean?

Theres an elderly couple living in bp who were both tested for covid and antibodies. Covid was negative but antibodies showed they had it. They were never sick. Go explain another thing the biggest Drs can't explain abt this covid.
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amother
Cerulean


 

Post Mon, May 04 2020, 3:26 am
Anecdotally, in my small circles people had it, got better got it again. There are multiple strains that have evolved too. Its not the evidence youre seeking but ...
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FranticFrummie




 
 
    
 

Post Mon, May 04 2020, 7:33 am
Way, way, way too soon to be making any statements one way or the other. I don't think we'll have real answers for at least a year to year and a half. This is a NOVEL virus, and it's not behaving in any of the ways that can be predicted.

I'm not living in fear, and I'm not living in a false sense of security. There's a healthy balance of living - but living cautiously and being considerate of others who may have delicate health issues. It's all about finding balance, and not taking anything for granted.
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IrenaFr




 
 
    
 

Post Mon, May 04 2020, 10:51 am
In Canada one woman officially had it twice . With all these limited testings. She got totally better , but later got sick again , this time with all her family. Or she got it from them (second infection) or the virus reactivated in her and she gave it to them - nobody knows . It was in the news .
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amother
Mustard


 

Post Mon, May 04 2020, 11:09 am
Unfortunately, with all diseases there will be some reinfection. Sometimes the immune system glitches.
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Dandelion1




 
 
    
 

Post Mon, May 04 2020, 11:22 am
amother [ OP ] wrote:
I don't know where that study got that data, but nearly everyone else says that immunity from other coronaviruses are anywhere between 1 to 3 years.

https://www.medscape.com/viewarticle/870592_3

https://www.sciencedirect.com/.....04016

https://www.ncbi.nlm.nih.gov/pubmed/27192543

I can post like twenty more. I think there's a lot of knee-jerk fear that's coloring things here.


These are old studies about viruses that are NOT covid 19. You are comparing them to a study done currently, about the actual covid 19.
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Dandelion1




 
 
    
 

Post Mon, May 04 2020, 11:25 am
amother [ OP ] wrote:
I don't know where that study got that data, but nearly everyone else says that immunity from other coronaviruses are anywhere between 1 to 3 years.

https://www.medscape.com/viewarticle/870592_3

https://www.sciencedirect.com/.....04016

https://www.ncbi.nlm.nih.gov/pubmed/27192543

I can post like twenty more. I think there's a lot of knee-jerk fear that's coloring things here.


By all means, post the other twenty studies you have, IF they are studies about the virus we are fighting currently.
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amother
Aqua


 

Post Mon, May 04 2020, 12:10 pm
Dandelion1 wrote:
By all means, post the other twenty studies you have, IF they are studies about the virus we are fighting currently.


The study I listed was not the current coronavirus either. It is completely unknown how long immunity will last from the current virus. Anyone who claims otherwise is misinformed.

The article I referenced was from Columbia university was using 4 more common coronavirus as a reference. 229E, OC43, NL63, and HKU1

I found this interesting as it was discussing reinfection in children - the silent carriers
Quote:

ADDITIONAL BACKGROUND ON THE STUDY
The researchers examined data from the Virome project, a study of the transmission dynamics of respiratory viral infections, including weekly nasal swabs and self-reports of respiratory symptoms, from 191 healthy children and adults in New York City collected between fall 2016 and spring 2018.

Over the course of the study, 86 individuals tested positive at least once for a coronavirus infection, and 12 individuals tested positive more than once for the same coronavirus. The median time between reinfection was 37 weeks. The majority of the repeated coronavirus infections were in children, a group more vulnerable to infection because of their immature immune system, and 26 percent of repeated infections were co-infections with other respiratory viruses.
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boots




 
 
    
 

Post Sun, Aug 23 2020, 11:48 am
10.9% reinfection rate in this study out of Italy

https://www.journalofinfection.....-4453(20)30553-3/fulltext
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penguin




 
 
    
 

Post Mon, Aug 24 2020, 10:54 pm
Can you please correct the link above. Thank you.
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