U.S. FDA, CDC see early signal of possible Pfizer bivalent COVID shot link to stroke
U.S. FDA, CDC see early signal of possible Pfizer bivalent COVID shot link to stroke

The U.S. Centers for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA) said on Friday that a CDC vaccine database had uncovered a possible safety issue in which people 65 and older were more likely to have an ischemic stroke 21 days after receiving the Pfizer/BioNTech bivalent shot, compared with days 22-44.