FDA and the Centers for Disease Control and Prevention are investigating whether people ages 65 and older who received Pfizer and BioNTech’s bivalent COVID-19 shot are more likely to have an ischemic stroke, after CDC’s vaccine surveillance system detected the potential safety signal. FDA and CDC are not recommending a change to the current COVID-19 vaccination regimens, as it’s unlikely that the safety signal “represents a true clinical risk.” The agencies said they’re sharing the information to be transparent with...