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07-13-2022 , 04:03 PM
There's generally some confusion though. Higher infectability is very fast evolution that is directly selected for. There is no direct selection pressue on lethality. Human reaction aside (which can be very significant) lethality has zero impact on the fitness of a new strain until possibly long into the future i.e it aint good for the virus if it's killed all the hosts - this should offer no comfort.

As I posted about before, the far bigger impact on lethality may be the way hosts have coevolved with infections. It's unclear but it may that we have evolved to allow escape of infections as part of the defense against lethality.

Most encouraging of all is the mega success of the vaccines. Tweaking them to new variants is relatively easy. Plus treatments are gradually getting on top of viruses - still a long way to go but science will win this one too.

Last edited by chezlaw; 07-13-2022 at 04:08 PM.
07-13-2022 , 06:51 PM
Quote:
Originally Posted by chezlaw
There's generally some confusion though. Higher infectability is very fast evolution that is directly selected for. There is no direct selection pressue on lethality. Human reaction aside (which can be very significant) lethality has zero impact on the fitness of a new strain until possibly long into the future i.e it aint good for the virus if it's killed all the hosts - this should offer no comfort.

As I posted about before, the far bigger impact on lethality may be the way hosts have coevolved with infections. It's unclear but it may that we have evolved to allow escape of infections as part of the defense against lethality.

Most encouraging of all is the mega success of the vaccines. Tweaking them to new variants is relatively easy. Plus treatments are gradually getting on top of viruses - still a long way to go but science will win this one too.
Bolded is not true and that is why it has not been done yet.

It takes time and there is no guarantee by the time you have done it the variant you have tweaked for is the dominant variant.

C19 has thrown virologists a curve ball because Omicron is a completely different lineage to Alpha and Delta, which normally just does not happen. Its mutated in very different way, where as Delta was an evolution of Alpha. Any vaccine tweaked for Alpha or Delta would bestow no advantages against Omicron.

The idea of tweaking for variants has been pretty much abandoned, though there is a small amount of work going on in that regard, now the main drive is to develop broad spectrum vacinees that might anticipate and be adaptable to a wide range of possible mutations.
07-13-2022 , 08:24 PM
Quote:
Originally Posted by O.A.F.K.1.1
The official count is higher than 1 million in the USA, so if you have some other (tin foil) source please share.
do you literally have no concept of dying "with" Covid" than "of Covid"?

Jesus Christ

but whatever, get boosted (again and agian), mask up, and clutch those pearls

and most importantly.......shame others
07-13-2022 , 09:45 PM
Quote:
Originally Posted by Rococo
For all practical purposes, yes. And we are probably as vaxxed up in the United States as we ever will be. Life is full of background risks. We just have to decide, both individually and collectively, how we want to live in light of this new risk, because it is not going away any time soon.
"Collectively" will the challenging word there.

Most people are prepared to decide the risk for themselves but as we have a very large percent of very old and obese individuals who are surviving with so many comorbidities, that in yesteryear or less developed nations would have taken their life long before.

Nature has always had a way of targeting the vulnerable in the herd and Covid is the virus that is coming for them. And that then leads to 'them' wanting everyone to Vax up to the max to protect them. Understandable from their perspective. A little more challenging when you say that to 'others' when it comes to never ending Med's.






Quote:
Originally Posted by O.A.F.K.1.1
If it gets nasty enough to really stress health care systems some polities will for sure lock down again.

The worry is it keeps the massive infectability upgrades it has acquired since covid 1.0 but then has a lethality power up, which would make it considerable more damaging than it was during the lockdowns.
Hospital capacity will always be key. If hospital systems risk breaking again, then measures will be taken.
07-13-2022 , 11:41 PM
Quote:
Originally Posted by O.A.F.K.1.1
Bolded is not true and that is why it has not been done yet.

It takes time and there is no guarantee by the time you have done it the variant you have tweaked for is the dominant variant.

C19 has thrown virologists a curve ball because Omicron is a completely different lineage to Alpha and Delta, which normally just does not happen. Its mutated in very different way, where as Delta was an evolution of Alpha. Any vaccine tweaked for Alpha or Delta would bestow no advantages against Omicron.

The idea of tweaking for variants has been pretty much abandoned, though there is a small amount of work going on in that regard, now the main drive is to develop broad spectrum vacinees that might anticipate and be adaptable to a wide range of possible mutations.
Of course it's true. The reason it hasn't been done is that the original vaccines are extremely effective.

Evolutionarily speaking there is nothing remotely odd or new about different lineages. We should also expect recombining of different lineages which can be particualrly dangerous. What is iextraordinary is watching a novel pandemic evolve - the ablity to see it happen in real time is what is extraordinary
07-14-2022 , 02:35 AM
Quote:
Originally Posted by natediggity
do you literally have no concept of dying "with" Covid" than "of Covid"?

Jesus Christ
Give us the numbers.

Quote:
Originally Posted by natediggity
but whatever, get boosted (again and agian), mask up, and clutch those pearls
Sounds like shaming.

Quote:
Originally Posted by natediggity
and most importantly.......shame others
Ah, there we go.
07-14-2022 , 02:50 AM
Again this just isnt true and the science is unequivocal.

Its not normal for variants to come from a completely new lineage, its of course normal for variants to be a mutation/evolution of the dominant strain.

If a given strain say Delta is present in the vast majority of people with covid the expected thing is for the next variant to be a mutated copy of Delta.

Omicron is very very very different to Delta (and Beta, Gamma, Alpha) and its not remotely normal to have a variant not come from the dominant strain at the time and be so different.

Its true what you say about recombining because again that is a process derived from the dominant strain, dominant strain being the key feature in how viruses normally evolve for reasons that should not need explaining. Its a numbers game.



The virus has been behaving more normally recently which is why each new variant is a numeral of Omicron.

Also the vaccines are doing a poor job now of protecting against infection, especially when considering many people have already had 3 or even 4 shots.

Severe disease yes, infection no.

Quote:
Fast-evolving COVID variants complicate vaccine updates
Quote:
COVID-19 vaccines are due for an upgrade, scientists say, but emerging variants and fickle immune reactions mean it’s not clear what new jabs should look like.
Quote:
“I think it’s time,” says Meagan Deming, a virologist and vaccine scientist at the University of Maryland School of Medicine in Baltimore. “The virus is changing, and what worked two years ago may not work for future variants.” But she and other scientists caution that updating COVID-19 vaccines won’t be as simple as swapping genetic material based on the Wuhan strain for that matching Omicron.
Quote:
So if upcoming vaccines are based on the original Omicron, called BA.1, there is a real possibility that by the time they are rolled out later this year, circulating Omicron strains will be different. “BA.1 is yesterday’s news,” says John Beigel, a physician-scientist at the US National Institute of Allergy and Infectious Diseases (NIAID) in Bethesda, Maryland, who is leading a trial of potential vaccine updates.

It is also possible — and some scientists say likely — that an entirely new variant will pop up from a distant part of the SARS-CoV-2 family tree. “My concern is that there’s this huge focus on Omicron, and the assumption that Omicron is what we will be dealing with in the future,” says Penny Moore, a virologist at the University of the Witwatersrand in Johannesburg, South Africa. “We have a strong track record of getting that wrong.”
Quote:
As a result of such uncertainty, scientists say the next COVID-19 vaccines need to cast a wide net, ideally eliciting an immune response that can recognize variants past, present and future. “The broadest response is definitely what I want,” says Deming.
https://www.nature.com/articles/d41586-022-01771-3
07-14-2022 , 03:13 AM
Of course it's normal. This is still evolution 101

As for realtively easy. Here's some idiots on the topic:

Quote:
Should changes be needed in the vaccines, the new mRNA vaccines will be easier to modify than most non-COVID vaccines. The process should take only a few months, says Onyema Ogbuagu, a Yale Medicine infectious diseases specialist and a principal investigator of the Pfizer COVID-19 vaccine trials.

The active ingredient in an mRNA shot is genetic code that provides the instructions for human cells to produce the virus’s spike protein. The mRNA is fashioned in a lab from four chemical building blocks called nucleotides. To target new mutations in the spike, you simply remove a few of the old blocks and replace them with new ones, Ogbuagu explains.

Altering the AstraZeneca vaccine, where the genetic code is delivered by an adenovirus vector, may be a bit more challenging. But it too fundamentally involves rewriting a bit of code, Weatherhead says.

In a vaccine with a lot of genetic instructions, these alterations would be small, which is why new side effects from refashioned shots are unlikely, Ogbuagu adds. “It’s not creating a new vaccine. It’s more like taking a dress and hemming it to give it a new length,” he says.
https://www.nationalgeographic.co.uk...sting-vaccines

Last edited by chezlaw; 07-14-2022 at 03:22 AM.
07-14-2022 , 03:14 AM
Quote:
Prof Pollard said his team were already looking at updating the vaccine to make it more effective against the mutations that are being seen.

"I think the actual work on designing a new vaccine is very, very quick because it's essentially just switching out the genetic sequence for the spike protein.

"And then there's manufacturing to do and then a small scale study. So all of that can be completed in a very short period of time, and the autumn is really the timing for having new vaccines available for use," he said.
https://www.bbc.co.uk/news/health-55917793


Quote:
If required, BioNTech said it is poised to tweak its vaccine to match it more closely to the new variant.

“Pfizer and BioNTech have taken actions months ago to be able to adapt the mRNA vaccine within six weeks and ship initial batches within 100 days in the event of an escape variant,” the company said in a statement.
https://www.theguardian.com/society/...days-if-needed


Quote:
Vaccines based on mRNA, such as the BioNTech/Pfizer and Moderna vaccines, are thought to be the easiest to alter. But most companies have been preparing for the eventuality of a so-called escape variant and have ambitious timeframes for distributing an updated vaccine, if deemed medically necessary and commercially feasible.

So far, vaccines have held up well against new variants, such as Beta and Delta, but the emergence of these variants served as practice runs.

Quote:
Pfizer’s chief executive, Albert Bourla, made a bold promise in June. Standing next to US President Joe Biden at a press conference in St Ives, UK, just before the G7 summit meeting, Bourla said that should the need arise for a new COVID-19 vaccine, his company could get one ready within 100 days.
...

Quote:
If an escape variant emerges, RNA vaccine makers such as Pfizer and Moderna could probably design and synthesize an initial prototype jab against it in a few days. Viral-vector vaccines, such as AstraZeneca’s, could follow closely behind. Making an RNA vaccine typically involves generating a new genetic sequence and encapsulating it in a fatty substance such as a lipid. Viral-vector vaccines are generated by inserting the key genetic sequence into a harmless carrier virus, culturing large quantities of the virus in a bioreactor, and purifying them.
https://www.nature.com/articles/d41586-021-02854-3

Last edited by chezlaw; 07-14-2022 at 03:20 AM.
07-14-2022 , 03:16 AM
I could go on forever but it's ridiculous. This is not in dispute. Tweaking the vaccines is relatively easy.
07-14-2022 , 03:25 AM
Evolution 101 has the child inheriting most of the characteristics of the parent with a vary slight competitive advantage.

This did not happen with Omicron.

Alpha, Beta, Delta and Gamma are all fairly similar because they are variations on theme of the dominant strain.

Omicron did not come from Delta the dominant strain at the time and this is highly unusual and unlikely simply due to the numbers, being the dominant strain you are of course creating many more copies of yourself at any given time so therefor are the most likely to create the next variant as a mutated copy.

Its a numbers game and why should be obvious.

This did not happen.

As to the above quote from National Geographic, its completely moot, the point is that you can insert genetic code into new vaccines, but even with it being relatively quick compared to other vaccines, its still not quick enough to keep up with the emergence of new variants.

So for example if we had made a new vaccine for Delta, it would have been pointless by the time it came online because Omicron.

Which is why Scientists no longer consider updating vaccines with new genetic code the optimum strategy for new vaccines.

This is not conjecture. You are just objectively wrong.
07-14-2022 , 03:28 AM
Quote:
The virus has been behaving more normally recently which is why each new variant is a numeral of Omicron.
And as soon as we have two variants from omicron but from different linagaes then that will be normal and unsuprsiing too. I'd assume it hasn't already happened.

Quote:
Also the vaccines are doing a poor job now of protecting against infection, especially when considering many people have already had 3 or even 4 shots.

Severe disease yes, infection no.
Indeed. I'm talkign about serious illness. The ship has long sailed on protection from infection - if there ever was such a ship once th cat was out of the bag.
07-14-2022 , 03:29 AM
Haha a link to when Matt Hancock was still Health Secretary about a new vaccine ready for the Autumn.

Which would have been Oct 21, because that link is from Feb 21.

Did not happen.

So your first link is absolutely washoe.

Second link, 100 days, again to slow.

None of those links counter the problem of variants evolving to quickly.
07-14-2022 , 03:29 AM
Quote:
Originally Posted by O.A.F.K.1.1
Evolution 101 has the child inheriting most of the characteristics of the parent with a vary slight competitive advantage.
but it doesn't in anyway expect all the grandchildren to be from the same parents

It's nonsesne
07-14-2022 , 03:33 AM
Okay. I'll post soem more of the bleedin obvious for you. Feel free to be sensible anytime
Quote:
Pfizer announced Saturday that tweaking its COVID-19 vaccine to better target the omicron variant is safe and works — just days before regulators debate whether to offer Americans updated booster shots this fall.
https://www.independent.co.uk/news/p...-b2109333.html
07-14-2022 , 03:37 AM
Quote:
Originally Posted by chezlaw
but it doesn't in anyway expect all the grandchildren to be from the same parents

It's nonsesne
You expect the last child to have some relation to its parent.

So Omicron might have wondered down the genetic path from the original strain, that is to be of course expected, but for it to be so so so different to the last step on the genetic path is not at all normal.

Omicron is not any recombination of Delta or mix of Delta with other variant, its completely out there as a set of mutations.
07-14-2022 , 03:38 AM
Quote:
Sarah Gilbert lead researcher for the Oxford team told the BBC on Sunday that “we have a version with the South African spike sequence in the works.”

“It looks very likely that we can have a new version ready to use in the autumn,” she added.
https://www.independent.co.uk/news/a...-b1798836.html
07-14-2022 , 03:39 AM
Quote:
Originally Posted by chezlaw
Okay. I'll post soem more of the bleedin obvious for you. Feel free to be sensible anytime

https://www.independent.co.uk/news/p...-b2109333.html
Why do you keep doing this?

Again I repeat its not that you cant tweak a vaccine, its that you dont want to, because by the time you do, hello new variant.

You are missing the point and supplying arguments that dont counter the problem.
07-14-2022 , 03:40 AM
Quote:
Originally Posted by chezlaw
Hahaha you did it again.

This is from Febuary 2021, did we have a new vaccine in Autumn 2021

No.
07-14-2022 , 03:40 AM
Quote:
Originally Posted by O.A.F.K.1.1
You expect the last child to have some relation to its parent.
? They do. Otherwise it wpuldn't be cocid anymore (among otehr things)

Quote:
So Omicron might have wondered down the genetic path from the original strain, that is to be of course expected, but for it to be so so so different to the last step on the genetic path is not at all normal.

Omicron is not any recombination of Delta or mix of Delta with other variant, its completely out there as a set of mutations.
Some peopel are gobsmacked by very basic evolution but it's still massively more the same than different. And it's not close
07-14-2022 , 03:41 AM
Quote:
Originally Posted by O.A.F.K.1.1
Hahaha you did it again.

This is from Febuary 2021, did we have a new vaccine in Autumn 2021

No.
Because the old ones still work very effectively hahahhaa. It is amusing how effective they are.

It so weird arguing with you sometimes. Fortunately what really matters is if a new deadly strain emerges than tweaking the vaccine will be realtively simple. The experts are telling you this
as clear as day.
07-14-2022 , 03:43 AM
Quote:
Originally Posted by chezlaw
Because the old ones still work very effectively

hahahhaa. It is amusing how effective they are.


Oh yes yes yes
The point you are missing.

Its winter.

Scientist: We can have new vaccine by Autumn.

Autumn is too long, because by Autumn, we will have a new variant.

That link supports my argument not yours.
07-14-2022 , 03:44 AM
If you want to roll out edited vaccines waiting from Winter to Autumn is far too long.
07-14-2022 , 03:48 AM
Quote:
Originally Posted by chezlaw
? They do. Otherwise it wpuldn't be cocid anymore (among otehr things)


Some peopel are gobsmacked by very basic evolution but it's still massively more the same than different. And it's not close
Omicron did not come from Delta copying itself and mutating, this is known fact.

So again this is highly unusual because its fully expected for any new strain to be mutated copy of the dominant strain simply due to the numbers involved.
07-14-2022 , 03:52 AM
Quote:
Originally Posted by O.A.F.K.1.1
Omicron did not come from Delta copying itself and mutating, this is known fact.

So again this is highly unusual because its fully expected for any new strain to be mutated copy of the dominant strain simply due to the numbers involved.
Well let's not argue about undisputed known facts

the rest is just beyond ridiulous.

Experts: We can do Version B relatively easy
Version A still works very effectively
We stick with version A

This somehow prove Oafk is correct and all the experts are wrong. Maybe Gove was right after all. We dont need no experts.

      
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