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 ...

AUSTIN (KXAN) — We’re learning more about exactly how the Pfizer COVID-19 vaccine works from research scientists at the University of Texas at Austin who helped develop it. “The way the Pfizer vaccine ...

Pfizer Inc.’s covid-19 vaccine remained highly effective after six months, according to new long-term results that the company said could be used to seek an expansion of its regulatory status.

The announcement Monday from Pfizer and its German partner BioNTech that their coronavirus vaccine appears to be 90% effective thrilled medical experts around the world and presented a glimmer of hope ...

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 says kid-size doses of its COVID-19 vaccine are safe and nearly 91% effective at preventing infections in elementary school children. Details of the study were posted online Friday. FDA ...

(NEXSTAR) – News is developing so quickly when it comes to COVID-19 booster shots, it can be hard to keep track of what’s happening. Have they been approved? Am I eligible? When can I get one? The ...

People who are 65 and older, ages 50-64 with underlying medical conditions or 18-49 at high risk and received their second dose of the Pfizer vaccine on or before March 30, 2021 are eligible for the ...