SEOUL—South Korea has arranged to buy coronavirus vaccines for 23 million more people, its prime minister said on Tuesday, a day after authorities said delays and efficacy concerns meant fewer people would be vaccinated in the first quarter of the year. The deals include Novavax vaccines for 20 million people and Pfizer products for 3…

BERLIN—Regulators authorized AstraZeneca’s coronavirus vaccine for use in adults throughout the European Union on Friday, amid criticism the bloc is not moving fast enough to vaccinate its population. The European Medicines Agency’s expert committee unanimously recommended the vaccine to be used in people 18 and over, though concerns had been raised this week that not…

Governments will not be able to say what “the new normal” will look like before a COVID-19 vaccine is rolled out widely. And chief medical officer Paul Kelly doesn’t expect that COVID-safe normal to appear until the second half of 2021. ‘It is a bit hard to tell now … I can’t look into my…

BERLIN—German pharmaceutical company BioNTech is confident that its coronavirus vaccine works against the new UK variant, but further studies are needed to be completely sure, its chief executive said Tuesday. The variant, detected mainly in London and the southeast of England in recent weeks, has sparked concern worldwide because of signs that it may spread…

WASHINGTON—The chief science adviser for the U.S. government’s vaccine distribution effort says it will be shipping nearly 8 million doses of coronavirus vaccine Monday. Dr. Moncef Slaoui said Sunday on CNN’s “State of the Union” that 5.9 million doses of a vaccine made by Moderna and 2 million of a vaccine made by Pfizer will…