Moderna says it is in the process of developing a single-shot vaccine that could serve as a COVID-19 booster shot and a flu shot. In a press release Thursday touting its fifth annual "R&D Day," ...

WASHINGTON -- Moderna submitted its application to the U.S. Food and Drug Administration for emergency use authorization of its updated COVID-19 vaccine booster for use in people age 18 and older, the ...

CAMBRIDGE, Mass. - Moderna’s COVID-19 vaccine remained 93% effective against symptomatic illness six months after the second dose, but amid the ongoing spread of the highly contagious delta variant, ...

On Friday, the Centers for Disease Control and Prevention updated recommendations for booster shots, saying that people who got the Moderna vaccine should now seek out a booster five months after ...

WASHINGTON — Pfizer and Moderna say the Food and Drug Administration have opened up COVID-19 booster shots to all adults, letting them choose another dose of either vaccine. The move expands the ...

Moderna announced Monday that a third dose of its mRNA vaccine against Covid-19 appears to provide significant protection against the omicron variant. The company said that its authorized booster can ...

As more Americans receive their COVID-19 vaccination daily, many are wondering how long they'll be effective for and whether some people will require booster shots at some point. Dr. Elizabeth Hudson, ...

There’s been quite a bit of news about COVID-19 booster shots lately, and it’s been more confusing than reassuring. Public health officials don’t agree on whether everyone needs a booster yet, and in ...