South America is filled with mammals from North America, but why more didn’t survive the reverse trip has been a natural history mystery.
Donald Trump hasn't needed to worry about the cost of his coronavirus treatment. But for the nearly half a million other Americans to have been hospitalised...
Harvey J. Alter, Michael Houghton and Charles M. Rice were jointly honored for their decisive contribution to the fight against blood-borne hepatitis, a major g...
How the body responds to a coronavirus infection.
WASHINGTON — In the past six months, cloth face masks have emerged as the simplest, cheapest and most effective weapon that most ordinary Americans can wield...
A simple, effective tool to prevent coronavirus infection has turned into a partisan fault line. It’s not too late to turn it around.
With fears of a “twindemic” in the United States this fall, here’s a guide to understanding what’s making you feel terrible.
Known initially as the “Berlin Patient,” he underwent an experimental stem cell transplant 13 years ago that rid his body of the virus. He died of...
Birds that appeared “freshly dead” near an Italian research base turned out to be centuries old.
A series of research papers renews hope that the long-elusive goal of mimicking the way the sun produces energy might be achievable.