NEW YORK -- This holiday season held promise for Americans, many of whom spent Christmas 2020 in quarantine or away from loved ones due to a nasty winter COVID-19 surge. Yet in the last week or so, ...

Moderna said on Monday its updated Covid-19 booster generated "significantly higher" neutralizing antibodies against the Omicron BA.4/BA.5 subvariants than its earlier shot. The bivalent booster used ...

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 ...

The U.S. Centers for Disease Control and Prevention on Monday expanded its recommendation for COVID-19 booster shots to all adults 18 and older, according to a CDC news release. "Today, CDC is ...

In "sobering news," omicron can evade the protection initial vaccines give, but boosters increase efficacy and better protect against the newest variant of concern, Dr. Anthony Fauci said Sunday. The ...

On Thursday, Johnson & Johnson released new data showing that its COVID-19 vaccine and booster shot offers significant protection against hospitalization caused by the omicron variant. The company ...

The US Centers for Disease Control and Prevention strengthened recommendations for booster doses of coronavirus vaccine Monday, saying all adults should get boosted six months after the second dose of ...

Pfizer and BioNTech said Wednesday that initial lab tests show that the omicron variant partly escapes protection offered by the companies' two-dose regimen of their COVID-19 vaccine. However, those ...

The U.S. Food and Drug Administration on Tuesday authorized Pfizer's omicron booster shot for kids under five years old who were previously vaccinated with three doses of the company's original ...