sgfyd
Why not? Just because it doesn't match up, or is there a deeper reason?
I think the medical guidance has been pretty clear that you should not get the vaccine in this case. There are a lot of people who care more about their own safety than yours who may try to change your mind. Don't listen to them; don't get your medical advice on the internet. Find an expert.
This is, of course, contradicted later in the article in which they point out that `BB(800)` (or so) has been proved independent of ZFC; there's no really good reason to believe `BB(27)` is not likewise independent. There may still be a truth of the matter about the value of `BB(800)` or `BB(27)` (as the case may be), since ZFC hardly encompasses all truth, but calling such a number an "exact figure" is a bit like claiming to know the birth date of Julius Caesar down to the millisecond: Implausible to start with, and the closer you look the more you wonder, "what does the question even mean? Relative to what standard?" (In the one case, "of time"; in the other, "of mathematical truth".)