Is someone able to update me, I'm still a bit confused. Has it been confirmed that this is no longer mutating and the scientists at least know what they are dealing with? Obviously I mean that for treatment/vaccine because I thought the original difficulty was also they were concerned it kept changing and was a different strand almost every time
It doesn't seem to be mutating very fast despite being an RNA virus (can't fix errors in the way DNA can) so a vaccine would likely be of great help for a year or two at least allowing time to adjust the vaccine as new strains become more common.
Mutations are most likely to make no difference to how it operates or make it milder, as viruses that are more deadly reproduce less than those that are milder.
If we find an anti-viral that works we could probably do with more than one as viruses can become resistant quite quickly.
If we do get a vaccine mass vaccination programs tend to speed up mutation by targetting the main strain, as happens to some degree with flu. The small % not prevented by the vaccine becomes the dominant strain. Testing kits might need to be adjusted as well.
So at the moment, with limited information, it seems that mutation isn't a huge concern at the moment.