Federal documents show he disagreed with conclusions the benefits outweighed the risk of side effects, which are rare.

The virus has not yet evolved to spread efficiently between people. Excellent vaccine technology exists, but the government ...

Moderna’s new influenza vaccine, based on the same mRNA technology used in its COVID-19 vaccine, showed promising results in a major trial.

Moderna stock popped Wednesday after the CDC recommended the company's RSV vaccine for at-risk adults in their 50s.