NEW BRUNSWICK, N.J. -- Booster doses of Johnson & Johnson's one-shot coronavirus vaccine generated a big spike in antibodies, the frontline immune system defenses against infection, the company ...

JACKSONVILLE, Fla. — The Centers for Disease Control and Prevention are recommending a third shot for those who got the Pfizer and Moderna COVID-19 vaccines eight months after the second dose. People ...

Johnson & Johnson said Wednesday that studies show a booster shot of its vaccine provides a "rapid and robust increase" in Covid-19 antibodies when used on people who have already received its ...

Do I need a booster if I got the Johnson & Johnson vaccine? Probably at some point, but health officials still are collecting the data needed to decide. With boosters being planned in the U.S. as ...