The vaccine was custom-brewed for each patient to match their tumor.
Trump and Kennedy asserted without evidence a link between vaccines and autism.
Moderna was seeking approval for the vaccine's use in adults over 50.
The cruise ship outbreak has put renewed attention on the Andes virus, a rare type of hantavirus that can spread between people and cause severe respiratory illness.
The Food and Drug Administration blocked the publication of studies that tracked the safety of the COVID-19 and shingles vaccines, an official told ABC News.