ADEY that is the problem right there.
The WHO and the FDA are just allowing the vaccinations right now on a fast track. and as the links posted by jut showed they are still testing and recruiting people to be test objects. There simply will not be enough time for long time testing to say it is save . It will be quick and rushed and they say : oh it's save!!
just so they can get it to the market.
You can use common logic and count on your fingers how long they will test