WASHINGTON — Pfizer and Moderna say the Food and Drug Administration have opened up COVID-19 booster shots to all adults, letting them choose another dose of either vaccine. The move expands the ...

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 ...

Booster vaccines reduced the risk of COVID‑19–related hospitalization and death, according to a new study of over 3 million ...

The Food and Drug Administration has issued approval for a booster shot of Pfizer's COVID-19 vaccine for children as young as 12. The Pfizer vaccine is the first booster shot to receive emergency ...

Booster vaccines reduced the risk of COVID‑19-related hospitalization and death, according to a new study of over 3 million ...

WASHINGTON -- With winter closing in and coronavirus case rates creeping up once again, White House chief medical adviser Dr. Anthony Fauci is warning that the vaccines' waning immunity combined with ...

NEW YORK -- In the next month, millions of Americans will get ready to roll up their sleeves for a third dose of the COVID-19 vaccine. But when it comes to booster shots, it's not as simple as "more ...