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 ...

Many countries including Canada and the U.K. have backed mix-and-match strategies for the widely-used AstraZeneca-Oxford vaccine, which is not authorized in the United States but is based on similar ...

Add Yahoo as a preferred source to see more of our stories on Google. Looking to get a COVID-19 vaccine booster for yourself or your child this fall? It may be a bit more complicated than just making ...

NEW BRUNSWICK, N.J. -- A real-world study of South African health care workers found that two doses of the Johnson & Johnson COVID-19 vaccine offer 85% protection against hospitalization from the ...

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 ...

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 ...

WEST PALM BEACH, Fla. — Lensey Ackerman got her primary series of the COVID-19 vaccine as soon as she became eligible, in part because she works closely with senior citizens in an assisted living ...

Discover how booster shots for expecting mothers can safeguard newborns from diseases through maternal antibodies and ...