The new memos from the Food and Drug Administration show how the agency’s vaccine chief, Dr. Vinay Prasad, personally ...

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.

Moderna is preparing to test Health Secretary Robert F. Kennedy Jr.'s tougher vaccine policies with a combination flu-COVID ...