>>12436172> The pre-clinical stages often lasts 1-2 years and usually involves researchers in private industry.>This stage involves basic laboratory research and often lasts 2-4 years.I don't see any claim of this being best case. It seems that the covid vaccine is best case, and I gave an example of why it would be best case here:
>>12435788For a vaccine USUALLY you would do each exploratory and pre-clinical study one after the other, so if a negative finding is found you dont waste money.
In COVIDs case, you have a lot of funding, so you don't have to do them one after the other, you can do them all at once, as long as you hire enough people to do the work.
That website you linked was last updated in january of 2018. If you trust them, then send them an email asking whether the covid vaccine is safe and why it was able to be developed so quickly
