Originally posted by Rondec It totally depends on the vaccine used and how similar it is to existing vaccines. If you are starting from scratch, you are probably right. On the other hand, we produce millions of doses of flu vaccine every year and the process of generating that does not take years.
If you read about this vaccine attempt, for instance:
COVID-19 Vaccine Candidate Shows Promise It appears that the researchers are going on an existing coronavirus research into vaccines to create a new vaccine specifically for COVID 19. The point is not to reinvent the wheel, but rather use basic knowledge that we already have about vaccine creation and make something that is similar to the stuff we know that works.
Of course, that is no guarantee, but I am not nearly as pessimistic as you all seem to be.
The core problem with COVID-19 is that we actually haven't invented the wheel yet for either this virus or related ones. Thus, we can't quickly adapt a known working vaccine system to COVID-19 with any assurance it will work. Heck, we don't even know if having antibodies to COVID-19 confers lasting immunity (or any immunity) to COVID-19. Yes, it's fairly clear that people who have survived a bout of COVID-19 don't seem to get instantly reinfected by COVID-19 and they have antibodies to COVID-19 but it is the antibodies that are protecting them or is it some other aspect of their immune system that protects them?
One universal problem in medical research is that every researcher is very confident that they've got the solution. These researchers are often top-flight scientists who are used to being right. Moreover, in order to attract funding and high-quality collaborators, proponents of a vaccine technology must project confidence in the correctness of their approach.
However, as we have seen in the political sphere (as in the scientific sphere), human confidence is an abysmal predictor of the truth. Confidence and correctness don't correlate very well.
That said, the fact that there are more than 100 groups working on vaccines certainly increases the chance that someone will find something. The only challenge is to avoid the natural human desire to pick the winner as soon as possible and throw all our resources behind the best option. The most promising vaccines early on might well fail in later phases. The optimal strategy might be to fund industrial production of multiple prototype vaccines even as trials are ongoing. That might seem like an expensive and wasteful strategy but with thousands of lives being lost each day and trillions of dollars in accumulating economic damage, now is not the time to put all the eggs in one shaky basket.