F.D.A. Seeks More Oversight of Vaccine Trials and Approvals

The agency’s top vaccine regulator proposed broad changes, claiming that a new review linked 10 children’s deaths to the Covid vaccine. But public health experts questioned the findings, wanting to examine the data.Dr. Vinay Prasad, the F.D.A.’s top vaccine official, suggested in a memo that the deaths were related to vaccine-related myocarditis but did not offer data to support his conclusions.