But new variants may require a different vaccination be given - we don't know yet on that score. Currently looks like the Delta variant can be managed with current vaccines - but if it mutates further then they'll bring out a new jab for everyone.
Yes, which to all intents and purposes for Joe Public, is regular (yearly, we’ll see) covid vaccinations.
In the same way that the “flu jab” is against multiple, varying strains and strain variants every year”