Adams, who served as surgeon general during the first Trump administration, said Kennedy's assertions about the efficacy of mRNA vaccines are "simply not true."

Former U.S. Surgeon General Jerome Adams — who served in President Trump's first term — tells "Face the Nation with Margaret Brennan" that "people are going to die" if the U.S. backs away from mRNA research,

While anti-vaxxers are thrilled, experts warn that defunding mRNA development takes away our already-proven best weapon against future pandemics.