> After the parasites circulated through 21 rounds of vaccinated mice, Barclay and Read studied them and compared them to malaria parasites that had circulated through 21 rounds of unvaccinated mice. The strains from the vaccinated mice, they found, had grown far more virulent, in that they replicated faster and killed more red blood cells. At the end of 21 rounds of infection, these more quickly growing, deadly parasites were the only ones left.
As a sibling mentioned, it doesn't appear to be as bad as bacterial resistance, or at least different in a nuanced way.
From what I've read there is a difference between vaccinating _before_ a pandemic and vaccinating _during_ a pandemic. With the safer preference being to vaccinate before a pandemic to avoid immunological escape.
[1] https://www.quantamagazine.org/how-vaccines-can-drive-pathog...
This isn't setting any precedent. Polio, tetanus, hepatitis A/B, rubella, measles... Quite a lot of diseases where vaccination is the preferred method versus better treatment.
Vaccines don't work like that, there's an effectively unlimited number of vaccines, because they're tailored to the virus. It's still a problem if a virus mutates around your vaccine, but you're not worse off for trying.
I am not a virologist, but it doesn't seem to make common sense to me that we're safer if we let a virus spread and just treat it, instead of vaccinating. The more of the virus that's out there, spreading and multiplying, the greater the opportunity for problematic mutations to develop/spread.
That also assumes that there's a good treatment, and sufficient capacity to treat everyone quickly, otherwise there's really not a choice there.
Concern trolling about the approval status is also just that. The risks are pretty well known at this point and approval is a forgone conclusion. If hundreds of millions of healthy vaccinated people aren't enough proof of safety for you, then final FDA approval won't be, either.
[1] https://journals.plos.org/plosone/article?id=10.1371/journal...
Sorry, but you're just plain wrong.
Obviously this data is only for confirmed cases, so there may be far more unreported cases in the wild, but your made up number of 99.9+% is still pretty clearly wrong.
Also, given that you can be have covid, and be asymptomatic, there's actually no way to know if you are healthy (unless you're getting tested regularly). If you're infected, but asymptomatic, you're spreading the virus and you're part of the problem.
Maybe, but it's not a big deal.[1]
That has been the general approach for over a century, yes, particularly for diseases without effective treatments.
> But will all these new vaccinations cause a virus to adapt to be more viral, similarly to how antibiotics has the potential to make bacteria resistant?
No particular reason to think so, and it hasn’t happened before. We don’t have super-smallpox, say.