In a post on Truth Social, the president suggested that the C.D.C. was being “ripped apart” over a question that was answered long ago. By Apoorva Mandavilli and Carl Zimmer In a message on social ...

President Donald Trump showed support for vaccines on Friday, following Florida’s move to eliminate vaccine mandates in schools and shake-ups at the Centers for Disease Control and Prevention. During ...

The federal government is cutting $500 million in research money for development of mRNA vaccines, which were widely used against the COVID-19 virus. Health Secretary Robert F. Kennedy Jr. said in a ...

What is an RNA vaccine? RNA vaccines, or messenger RNA (mRNA) vaccines, are a relatively new type of vaccine that delivers mRNA molecules to human cells, instructing them to produce specific antigens.