Pfizer and its collaborator BioNTech have shown that their new COVID-19 booster does what they hoped it would, with the same safety and side effect profile as earlier shots. In a study released early ...

The U.S. Food and Drug Administration (FDA) has authorized a single booster dose of the Pfizer-BioNTech COVID-19 vaccine bivalent for children six months old through four years of age. At least two ...

As residents prepare to roll up their sleeves for a third, fourth or even fifth dose of COVID-19 vaccine, some may be wondering: Do I need to stick with the same brand, or is it safe to mix it up?

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 ...

In the six weeks since the Food and Drug Administration authorized updated omicron boosters, it’s been unclear how much more protection the new version of the shot provides against infection. On ...

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