How did this new strain of the novel coronavirus evolve? Researchers are investigating various possibilities. One leading theory involves ... just one person.
Stocks fell on Tuesday as investors weighed the potential economic fallout from the new coronavirus variant. Federal Reserve Chair Jerome Powell said the central bank could end its bond-buying early.
At a special session this week, the World Health Organization hopes to start sketching out a new world order. "We don't have rules of the game," says WHO head Tedros Adhanom Ghebreyesus.
The World Health Organization deemed it a variant of concern, and the U.S. is banning travel from parts of Africa where it's spreading. Here's what scientists know and what they're trying to learn.
It could turn out to be the eighth coronavirus known to spread to humans. Some scientists think doctors and researchers should start actively looking for this virus in patients.
Last winter the number of flu cases was pretty low — likely a result of COVID precautions people were taking. Does that mean we have fewer antibodies — and a greater risk of catching something now?
Pandemic predictions have been made — and then things would change. But based on models and studies (including a 1980s test that squirted virus up human noses), researchers have a new endgame thesis.