They spent 12 years solving a puzzle. It yielded the first Covid-19 vaccines
nationalgeographic.com
nationalgeographic.com
Protein: The final product.
mRNA: the information carrier.
Lipid bubbles: carrying mRNA into the cells
This article is about the protein. The unmodified virus spike protein is stable only when attached to the protein shell of the virus. These people worked on methods, on how to modify the spike protein so that when it's released alone, without the rest of the virus, it still keeps the same shape and form as when attached to the virus. If you just used to original protein sequence without the rest of the virus, the spike protein would fold into different 3D-shape, and would not work as an antigen. Without this work, the vaccine would not work.Katalin Karikó invented how to "mask" this foreign mRNA, so human cells accept and use it for protein synthesis. Whereas usually human body attacks foreign RNA vigorously.
The there is the part, where mRNA is packed inside tiny fat bubbles, so it can be transported into human tissue and cells. I think we still haven't seen a submission about this technology here?
https://www.sciencedirect.com/science/article/abs/pii/S01694...
I'm an absolute beginner, started reading lots of Twitter threads when covid began.
It’s fine to write these focused articles to teach, it’s like analyzing one facet of a diamond. The more the merrier!
(at least) 4 of the vaccine candidates utilize the research from the article.
With no possibility to socially distance hospitals would have been overwhelmed with infected people in months. That would mean that instead of the 1% death rate we see now, anyone who needed ICU or oxygen to survive would then die, which I think is about 5X more, and it would include many younger people who just needed a little help but got none.
Also anyone who needed the hospital for anything else is out of luck. Got hit by a car? Heart attack? Sorry, it’s full.
With that number of dead and infected a lot of basic services would probably fail too just from lack of people.
In short, it might be over quicker, but it would be A LOT more terrible.
Or you can believe a vastly more probable explanation: correlation due to common cause. Humans have been paying particular attention in the past decade to this spike protein; some of this research led to a vaccine, while another branch of research led to a lab escape. The conspiracy theory of "luck" and kind viruses doesn't even pass the laugh test in comparison.
We had an emergency project then luckily got a decade long deadline extension.
[1] https://www.nature.com/articles/ni.3608
[2] https://en.wikipedia.org/wiki/C%C3%A9sar_Milstein
[3] https://www.whatisbiotechnology.org/index.php/exhibitions/mi...
This is certainly important and impressive work, but the title is inaccurate stating these are the "the first" vaccines. These are definitely the most expensive ones and made for the first word countries with developed and reliable infrastructure able to meet storage requirements. So in some ways they are the first indeed.
1: https://sputnikvaccine.com/about-vaccine/human-adenoviral-va...
Prices here: https://www.google.com/amp/s/www.statista.com/chart/amp/2365...
I don't have any interest in promoting a specific vaccine. Just disdain for skewed reporting. FYI there are multiple adenovirus-based vaccines available (Oxford/AstraZeneca, Sputnik V).
China and Russia have approved vaccines already, but without waiting for the immunizations to complete the final round of tests in people. Regulators in the United States and the European Union are expected to issue their decisions in the coming weeks.
Not exactly running the same race then, are they? It's a very dubious definition of "first" and certainly not enough to say someone else's claim is false.
https://nymag.com/intelligencer/2020/12/moderna-covid-19-vac...
For god's sake get to the point already.
> "S glycoprotein signal peptide (extended leader sequence), which guides translocation of the nascent polypeptide chain into the endoplasmic reticulum" - part of the BioNTech/Pfizer vaccine. I don't ever want to hear anyone question fundamental science again. 1/2
> The level of control and understanding we now have over our biology came from literally millions of person-years spent working on things that at the time were obscure and "useless". And now? We can leverage all this into a 95% efficient vaccine _at the first try_. 2/2
* https://twitter.com/PowerDNS_Bert/status/1342159339767934978