A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to ...

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

When the seasonal flu strikes, most people expect the familiar lineup of fever, aches and congestion. But for many patients, dizziness emerges as an ...

Moderna's mRNA flu vaccine showed 26.6% better efficacy than a standard flu shot in adults 50 and older during a global Phase ...