The first person to receive a heart transplant from a pig has died, two months after the groundbreaking experiment, the Maryland hospital that performed the surgery announced Wednesday.
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Pandemics do eventually end, even if omicron is complicating the question of when this one will. But it won't be like flipping a light switch: The world will have to learn to coexist with a virus that...
The new omicron variant took only a few weeks to live up to dire predictions about how hugely contagious it is but scientists don’t yet know if it causes more severe disease even as the world faces ex...
A handful of the dozens of experimental COVID-19 vaccines in human testing have reached the last and biggest hurdle — looking for the needed proof that they really work.
AstraZeneca...
