@noyes @SuperTwaddle I'm not really sure there are any leftists setting policy in Canada/US/UK.
I'm not sure about Canada or the UK, but in the United States, the Democratic Party, which purports to be a left of center affair, campaigned on heavy mitigation... then they threw the gates open and let Omicron rip.
@carlos @SuperTwaddle @noyes This was meant more as a cultural comment than being about actual policy and politicians.
I don't think Left Wing Politicians understand the threat. Leadership pulled some sleight of hand in terms of long term morbidity, which is expected to be quite serious based upon past performance w/SARS and MERS, even for those that are not disabled.
American Right Wing think tanks are adjusting policy as if they expect unskilled laborers to lose utility in early adulthood. That's a safe bet for someone exposed by middle school.
1)They think that authority figures would repeatedly warn them if the danger was that bad. Unfortunately, Western leadership was unable to handle the crisis due to over-reliance on financially interested entities that misrepresented the both the interval of infection and the capacity of interventions necessary to manage that infection. SARS-CoV-2 infection is not transient, it is chronic, and we lack the background knowledge necessary to eliminate the infection.
@carlos @SuperTwaddle @noyes @steven
We have autopsy data of people who supposedly "cleared" their COVID infection showing it is still in their bodies, just not necessarily where it started. We also have studies showing it moving to pretty much every part of your body.
So let me kind of turn that question on its head. Do we have any evidence of most people fully clearing SARS-CoV-2 from their bodies?
It's early, so perhaps we will but I'm not aware of a study showing most people without COVID anywhere in their body. I think it's much more likely that no one's actually clearing it fully.
What we do know for sure is that it's found in parts of your body where it's theoretically "hiding" from your immune system for at least months after an infection. With an average re-infection period of every 8 months I feel like it's pretty clear people aren't clearing it from their body before adding more, on average.
@carlos @SuperTwaddle @noyes @steven
There's been quite a bit of research into viral persistence in people with long COVID. Is that the smoking gun? There's, for obvious reason, quite a bit less research into "Person who gets COVID and seems fine two weeks later." You, generally, neither have autopsy evidence available nor do those people generally keep coming in for repeated testing.
Just a sampling:
https://www.bmj.com/content/377/bmj.o1555
https://www.researchsquare.com/article/rs-1379777/v2
https://www.medrxiv.org/content/10.1101/2022.06.14.22276401v1.full.pdf
https://www.gavi.org/vaccineswork/could-coronavirus-persist-safe-havens-body
https://reports.mountsinai.org/article/gi2022-_6_evolution-of-antibody-immunity-in-the-bowel
https://www.frontiersin.org/articles/10.3389/fimmu.2022.939989/full
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9057012/
https://www.medrxiv.org/content/10.1101/2022.08.07.22278520v1.full
@carlos @SuperTwaddle @noyes @steven
You never clear EBV, for example, and it can cause all sorts of issues. It certainly wouldn't be the first virus to hide in places in your body where the immune system has a harder time reaching, so I don't think it's a strong claim at all, personally.
Discussion begins at minute 32. The information flows better if your view the latter 28 minutes before the first 32.
@noyes @carlos @SuperTwaddle @BE As a not sciency person, how does this concept relate to what we know about cumulative harms caused by repeated reinfections?
Is there another virus that stays in the body forever, but also that gets worse every time it's reintroduced to your body?
@steven
Dengue.
@carlos @SuperTwaddle @BE
Generally speaking, after about 5 weeks of any infection, the immune system gives up on trying to eradicate stubborn pathogens and de-escalates the immune response with a collection of protective compromises, most conspicuously the establishment of autoimmunity. A good example of such an autoimmune signal can be found here, ubiquitously expressed in all subjects, w/sex specific differences.
https://translational-medicine.biomedcentral.com/articles/10.1186/s12967-021-03184-8
@carlos @SuperTwaddle @noyes @steven
OK, let's dig into that.
https://www.nature.com/articles/nrmicro1560
Establishes from 2006 that "elevated interleukin-10 (IL-10) production causes the immunosuppression that allows viruses to persist unchecked by the immune system."
What happens in COVID? Uh oh.
https://www.frontiersin.org/articles/10.3389/fimmu.2021.677008/full
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7605819/
Now let's go back to 2005, SARS-CoV-1, in vitro.
https://pubmed.ncbi.nlm.nih.gov/15788125/
"Conclusions: SARS-CoV can establish a persistent infection in vitro."
At this point I'd throw in Dr Leonardi's paper from 2021 for "a perspective on some of the long-term risks of mutational escape, viral persistence, reinfection, immune dysregulation and neurological and multi-system complications."
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8536991/
1990's:
"Human corona viruses (HCV) have been associated mainly with infections of the respi-ratory tract. Accumulating evidence from in vitro and in vivo observations is consistent with the neurotropism of these viruses in humans."
https://link.springer.com/chapter/10.1007/978-1-4615-5331-1_75
1970's:
https://link.springer.com/article/10.1007/BF02121320
https://pmj.bmj.com/content/postgradmedj/54/635/581.full.pdf
Also, persistence of infection is well documented in FCoV/FIP, but the evasion mechanisms of SARS-CoV-2 & Omicron are unique, distinct from all other known CoVs, including SARS and MERS, though there are undoubtedly similarities.
Yes, that has been established for many viruses but not for many others. I will not be terribly surprised if it is also established for SARS-COV-2 but it still needs to be shown.
Has it been established for SARS-CoV-1 or for any other coronavirus?