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.
Before casting a crucial vote for the health secretary, the top Senate Republican laid out several specific commitments he had secured, some of which appear to have been breached.
In an interview, Health Secretary Robert F. Kennedy Jr. cited gaps in vaccine safety research. His critics say he is ignoring a larger point: Vaccines save lives.
It is highly unusual for a health secretary to personally order a change to scientific guidance, but Robert F. Kennedy Jr. ordered the language adjustment on the C.D.C. website.
Cases of the dominant flu virus this year, H3N2, are rising in 39 states. This virus is known to cause more severe symptoms than the H1N1 virus that was most common last year.
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