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.
Maybe not.
Read the publication toward the end of the original post.
As it turns out, having flu shots several years in a row might attenuate your immune response to subsequent flu exposures.
And read my oxfordjournals link as well.
Btw, sometimes you have to specifically ask to have d3 tested. It depends on the practice. And there is a wide range of ‘normal’ for d3. And if you do supplement with d3, look into K2 as well, they work together. We try to get ours from egg yolks, gouda cheese and grass fed butter.