There’s never in history been a vaccine for any coronavirus, due to the structure and propensity toward minor mutations that make a vaccine “impossible”. They’ve been trying for decades with no success, yet the kung flu comes out and it magically happens in record time. Cool beans.
You really are stupid on a whole new level.
There have been plenty of coronavirus vaccines in the past. The last one before this one was for the SARS virus.
The reason we're able to create vaccines for coronavirus so much faster than before is...wait for it...
NEW TECHNOLOGY!
Gee. Go figure.
While old vaccines relied heavily on studying the virus and how it acts and trying to control it and restrict it, we're now using mRNA data. We can now study the RNA of a given virus and then using that data create a vaccine that will trigger a response in our bodies.
If you knew how to read properly you'd know that by now and wouldn't be making a complete ass of yourself on the internet as usual.
And as for the OP, another idiot. So far the vaccines available are still very effective against all strains but one - the new South Africa strain - and they're testing that now so we don't really know.