Biden FDA Knew About COVID Vaccine Stroke Risk And Kept Americans In The Dark Senate investigators spent months reviewing roughly 2,000 pages of federal records. What they found is damning. FDA and CDC officials under the Biden administration identified a significant stroke risk tied to Pfizer's COVID-19 bivalent booster in seniors - and never breathed a word to the public. Sen. Ron Johnson (R-WI), chairman of the Senate's Permanent Subcommittee on Investigations, sent a form...