SAN FRANCISCO -- Moderna announced people may need a second booster to increase protection. But is a fourth shot the right approach? ABC7 News reporter Luz Pena from San Francisco spoke to multiple ...

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 ...

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 ...

A recent study has provided the first side-by-side comparison of how three major COVID-19 vaccine types differ in triggering ...

PHILADELPHIA (WPVI) -- The White House says boosters for all three vaccines could be ready in weeks, pending CDC approval. On Thursday, President Joe Biden assured the nation that supply is there, and ...

Moderna announced on Wednesday it has completed its submission to the US Food and Drug Administration for full approval of its COVID-19 vaccine for people age 18 and older, and Pfizer and BioNTech ...

RUNNEMEDE, New Jersey (WPVI) -- This week, Pfizer asked the FDA for authorization of a second COVID-19 booster shot for senior citizens to fight waning immunity. On Thursday, Moderna asked for that ...

The Centers for Disease Control and Prevention is issuing new advice for people who are immunocompromised. The health organization said people who've had the MRNA vaccines should look to get a fourth ...

The top vaccine chief at the Food and Drug Administration sent out a memo saying the FDA will seek a stricter review and ...

Neutralizing antibody levels rose 37-fold one month after the booster was given. Moderna announced Monday that its COVID-19 vaccine booster increases antibody levels against the omicron variant within ...