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

With the Delta variant in play, federal health officials are analyzing the latest numbers to look at the frequency and seriousness of COVID-19 breakthrough infections. Will we need booster shots? And ...

LOS ANGELES -- U.S. regulators issued new guidance this week shortening the time that people who received Moderna or Pfizer's COVID-19 vaccine have to wait for a booster, and it's different than the ...

As the Christmas season looms, with its crowded end-of-year parties, family gatherings and busy travel schedules, many New ...

More than a year after its promised deadline to investors, drugmaker puts alarming results in federal government's "virtual ...

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 -- People with certain health conditions that make them moderately or severely immunocompromised may get a fourth mRNA COVID-19 shot, according to updated guidelines from the US Centers for ...

NEW YORK, N.Y. – Pfizer Inc. on Monday released detailed analyses of myocarditis cases linked to its COVID-19 vaccine, ...