from a linked article "There is no evidence that any of them cause much more serious illness for the vast majority of people who become infected."
also
"Current vaccines were designed around earlier versions of coronavirus, but scientists believe they should still work against the new ones, although perhaps not quite as well.
Early results suggest the Pfizer vaccine protects against the new variants, but is slightly less effective.
Data on two new coronavirus vaccines that could be approved soon - one from Novavax and another from Janssen - appear to offer some protection too.
Data from the Oxford-AstraZeneca vaccine team suggests their vaccine protects just as well against the new UK variant. It offers less protection against the South Africa variant - although it should still protect against severe Covid-19 illness.
Early results from Moderna suggest its vaccine is effective against the South Africa variant, although the immune response may not be as strong or long-lasting.
Variants could emerge in the future that are more different again.
Even in the worst case scenario, vaccines could be redesigned and tweaked to be a better match - in a matter or weeks or months, if necessary, say experts.
As with flu, where a new shot is given each year to account for any changes in circulating flu viruses, something similar could happen for coronavirus."
https://www.bbc.co.uk/news/health-55659820
As I said yesterday, one of the benefits of vaccination, as I understand it, will be less chance for mutations to occur.