Again though, and this isn't having a dig, the main priority is stopping people getting seriously ill from any strain - which these vaccines do, even with the SA strain (though to less effect so far?).
If that is achieved, then it buys time for health systems to be able to treat people and it also buys time for vaccine manufacturers to tweak the medicine.
Which is why
@ForeverBlue92 's point about stopping the vaccine in some cases just seems counter-productive.
Stop people getting seriously ill - that's the priority.
Anyway, hope you're feeling better after the second dose of Pfizer, mate!