Greg, I'm so sorry to hear you are one of those that developed MS while on a biologic.

But to be fair, the pharma companies have not suppressed this. It is in the literature in section 5.2 here:
Patient Information PDF Rheumies have to learn how to evaluate this risk in their patients, but unfortunately, not everyone has the risk indicators in their medical history. I'm so sorry you are one of those who are experiencing this.
Hugs,