Many people first learned about mRNA vaccines during the coronavirus pandemic, when the companies Pfizer-BioNTech and Moderna released their COVID-19 vaccines. The Pfizer-BioNTech shot was the first ...

Health and Human Services Secretary Robert F. Kennedy Jr. said this week that he's pulling the plug on nearly $500 million in funding for the development of mRNA vaccines. Here's how they work.

Health and Human Services Secretary Robert F. Kennedy Jr. speaks as President Donald Trump listens at an event to promote his proposal to improve Americans’ access to their medical records in the East ...