I don't blame anyone for being alarmed at the speed at which the vaccine was developed compared to how long normal vaccine development takes. However, there were trials of the vaccine and it was developed using an established platform that had been tested. It's not like it was created completely from scratch - there was plenty of prior work on the coronavirus 'family' and vaccine development in general to build upon.
As I understand it, there were two significant factors in speeding up vaccine development, which I think everyone can relate to. I'm not a specialist in this area, but I work in an area related to research (without being a researcher myself) and have listened to some longform interviews with those involved. But we have at least two people more informed than me in this thread who can put me right.
The first is that when you're developing a vaccine (and especially getting funding) you can't get funding for C before you've shown results in B, and you can't get funding for B before you have results in A. Under normal circumstances that's perfectly sensible, because we don't want to waste money (either pharma's money or government research budgets distributed through the Research Councils) on things that won't work. With COVID, the nature of the emergency was such that development was done in parallel rather than sequentially - everything everywhere all at once. And that's why it was called 'warpspeed'.
The second is that a vaccine became everyone's number one priority for everyone involved. No matter what field you work in, imagine how quickly you could get X done if everyone agreed that X was the absolute top priority, that everyone should drop everything except X, and ££££ was... if not quite no object, but let's say no longer a problem. Could be a building project, could be a football transfer (see also: deadline day!), could be conveyancing on a house, could be building a house, whatever. Pick the thing in your field that needs a lot of input from a lot of people who don't all give it the highest priority and imagine how quick it could be done in an emergency.
It's certainly true that we don't know the long term impact of the vaccine, and I'd be amazed if a few people haven't been harmed by the vaccine. But the signs at the moment look pretty positive, as I don't see any evidence of waves and waves of problems. Compare this with the damage from 'long COVID'. Vaccines always and everywhere are a question of balancing competing risks - as is everything in life to a greater or lesser extent.
Seems to me that some people who have a problem with the COVID vaccines also have a problem with vaccines in general. If someone has a problem with vaccines in general, then I'm not sure why it makes any difference if the COVID vaccine was produced quickly, 'cos they presumably wouldn't be happy with it, no matter how long development took. I strongly suspect that if there was an issue with the vaccines, we'd know about it by now, and by "know about it" I mean something that's beyond dispute, rather than cherry-picked by some fringe blogs.
Vaccine development and rollout was an extraordinary scientific and logistical achievement, which could have been even better if the Global North didn't overorder and stockpile, rather than distribute to poorer countries.




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