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 ...

The Food and Drug Administration today authorized both Pfizer and Moderna to give a second booster dose of their COVID-19 vaccines to individuals aged 50 and older and to those who are ...

During an appearance on CBS News Sunday, Pfizer CEO Albert Bourla said that Americans would need a fourth dose of a COVID-19 vaccine to fend off future variants of the virus. Speaking with anchor ...

NEW YORK, July 8 (Reuters) - Pfizer Inc plans to ask U.S. regulators to authorize a booster dose of its COVID-19 vaccine within the next month, the drugmaker's top scientist said on Thursday, based on ...

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 ...

Pfizer CEO Albert Bourla said people will "likely" need a booster dose of a COVID-19 vaccine within 12 months of getting fully vaccinated. His comments were made public Thursday but were taped April 1 ...

U.S. health authorities again expanded the nation’s booster campaign Thursday, opening extra doses of Pfizer’s COVID-19 vaccine to several million 16- and 17-year-olds. The U.S. and many other nations ...

Moderna announced on Wednesday it has completed its submission to the US Food and Drug Administration for full approval of its Covid-19 vaccine for people age 18 and older, and Pfizer and BioNTech ...

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.