BRUSSELS/PRAGUE, Nov 25: Coronavirus infections broke records in parts of Europe on Wednesday, with the continent once again the epicentre of a pandemic that has prompted new curbs on movement and seen health experts push to widen the use of booster vaccination shots.

LONDON, Sept 22: Johnson & Johnson said Tuesday that a booster of its one-shot coronavirus vaccine provides a stronger immune response months after people receive a first dose.

CHICAGO, Sept 16: New data from Moderna Inc's (MRNA.O) large COVID-19 vaccine trial shows that the protection it offers wanes over time, supporting the case for booster doses, the company said in a news release on Wednesday.

LONDON, Sept 12: Booster shots to extend the protection of COVID-19 vaccines may be unnecessary for many people, a leading scientist behind the AstraZeneca vaccine said on Friday.

With boosters being planned in the U.S. as early as the fall for those who got the two-shot Pfizer and Moderna vaccines, recipients of the single-dose J&J jab might be wondering just how well their protection is holding up.

August 18: U.S. health officials may soon recommend COVID-19 booster shots for fully vaccinated Americans. A look at what we know about boosters and how they could help fight the coronavirus: