The new finding may have implications for reinfection risks and vaccine durability, said Kari Stefansson, chief executive of deCode Genetics,...

"It was a rough week, to put it mildly, and you've done it incredibly well."

Fauci says the death count is above 180,000.

It cautioned that "uncertainty remains about the efficacy and safety of convalescent plasma due to the lack of a randomized...

"The President remains healthy and I have no concerns about his ability to maintain the rigorous schedule ahead of him."