The flu shot didn’t work.
It wouldn’t have made any difference.
Have you had your vitamin d3 levels checked?
I was looking into it before, but in the meantime, I’ve had blood work that checks for a broad range of problems ... several times ... since I’m in an age bracket that makes it more relevant.
And, in that little girl’s case, if the vaccine didn’t make any difference ... she would have been dead without it, too.