The U.S. Centers for Disease Control and Prevention has ended its emergency response to the H5N1 bird flu outbreak, a move ...

A Boston-based nonprofit is among six organizations that on Monday filed a lawsuit against the U.S. Health and Human Services ...

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

Intense throat pain is a key symptom of COVID-19 variant NB.1.8.1, referred to as "razor blade throat." Here's what to know.