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 ...

A third dose of the Pfizer/BioNTech COVID-19 vaccine can "strongly" boost protection against the delta variant -- beyond the protection afforded by the standard two doses, suggests new data released ...

COVID-19 is seen on the rise again in the United States as late summer sets in full-swing, and while health officials plan to restrict booster shots. Experts say that although cases of the new ...

We are heading into flu season and the CDC recommends getting an updated vaccination to protect yourself against the flu and COVID. A newly discovered COVID strain known as XEC continues to spread ...

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 ...

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 ...

(NEXSTAR) – Depending on when you last got vaccinated, that COVID-19 shot may no longer be a good match for the variants expected to dominate this fall and winter. As a virus circulates, it continues ...

A lot has happened with COVID-19 vaccines in the past few years, making it difficult to keep up. You’re probably aware on some level, though, that there was an updated vaccine released in the fall.

The U.S. on Wednesday authorized its first update to COVID-19 vaccines, booster doses that target today's most common omicron strain. Shots could begin within days. The move by the Food and Drug ...

NEW YORK (WABC) -- Encouraging new data suggests the omicron variant, while highly contagious, is less severe than the delta variant. The variant has now been found in 21 states, as the U.S. continues ...