COVID-19

Overwhelmed hospitals are converting chapels, cafeterias, waiting rooms, hallways, even a parking garage into patient treatment areas. Staff members are desperately calling around to...

Pfizer said Wednesday that new test results show its coronavirus vaccine is 95% effective, is safe and also protects older people most at risk...

South Australia will begin a six-day lockdown at midnight Wednesday, with schools, universities, bars and cafes closed. Only one person from each household will be...

Two COVID-19 vaccines might be nearing the finish line, but scientists caution it's critical that enough people volunteer to help finish studying other candidates...

What does COVID-19 vaccine effectiveness mean? It refers to the likelihood that a coronavirus shot will work in people. Two vaccine makers have said that preliminary...

A second experimental COVID-19 vaccine — this one from Moderna Inc. — yielded extraordinarily strong early results Monday, another badly needed dose of hope...

BALTIMORE — More than 11 million cases of the coronavirus have now been reported in the United States, with the most recent million coming...

WASHINGTON — Joe Biden faces a decision unlike any other incoming president: whether to back a short-term national lockdown to finally arrest a raging...

PROVIDENCE, R.I. — With the coronavirus coming back with a vengeance across the country and the U.S. facing a long, dark winter, governors and...

LONDON — Some tentative signs emerged Friday to suggest that the U.K.'s coronavirus resurgence is leveling off after wide-ranging restrictions were imposed. In its weekly...