The world’s biggest COVID-19 vaccine study got underway Monday with the first of 30,000 planned volunteers helping to test shots created by the U.S. government — one of several candidates in the...

Drugmaker AstraZeneca struck a deal Saturday to supply up to 400 million doses of an experimental COVID-19 vaccine to European Union countries, the latest in a series of agreements as scientists, governments...

The first experimental COVID-19 vaccine in the U.S. is on track to begin a huge study next month to prove if it really can fend off the coronavirus, its manufacturer announced Thursday — a long-awaited...

Drug maker AstraZeneca said Thursday it had secured its first agreements for 400 million doses of a COVID-19 vaccine it is testing, bolstered by an investment from the U.S. vaccine agency. The Anglo-Swedish...

Hundreds of people are rolling up their sleeves in countries across the world to be injected with experimental vaccines that might stop COVID-19, spurring hope — maybe unrealistic — that an end to...

President Donald Trump says he believes a vaccine for COVID-19 will be available by the end of the year. Trump also says the U.S. government is putting its “full power and might” behind remdesivir,...