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 ...

Those eager to discredit Pfizer's mRNA vaccine, which is safe and effective, exploited the cruise ship outbreak.

PHILADELPHIA -- Pfizer and BioNTech said Tuesday they have submitted Covid-19 vaccine data on children ages 5 to 11 to the US Food and Drug Administration for initial review, but are not yet seeking ...

Hantavirus pulmonary infection is a disease caused by some hantaviruses, not the Pfizer-BioNTech COVID-19 vaccine, contrary ...

LOS ANGELES -- The COVID-19 vaccines made by Pfizer and Moderna both require two doses to be administered, several weeks apart, for them to be fully effective. But there has been some scientific ...

PHILADELPHIA -- To help fend off another wave of Covid-19, people will need a fourth dose of vaccine, Pfizer CEO Albert Bourla said Sunday. "Many variants are coming, and Omicron was the first one ...

Vaccine maker Pfizer said Friday that trials of its vaccine in children ages 2 to 5 show that it did not provide the expected immunity in kids this age, and it is adding a third dose to the regimen.

The pharmaceutical powerhouse still faces plenty of patent challenges, but it got a big one out of the way, securing time and ...