Contagiousness is the hallmark of the mutated virus surfacing in the U.S. and more than a dozen other countries.
Author: APOORVA MANDAVILLI
Discovery of Virus Variant in Colorado and California Alarms Scientists
A more contagious version of the coronavirus may alter the course of the pandemic in the United States, researchers said.
The Coronavirus Is Mutating. What Does That Mean for Us?
Officials in Britain and South Africa claim new variants are more easily transmitted. There’s a lot more to the story, scientists say.
Here’s Why Vaccinated People Still Need to Wear a Mask
The new vaccines will probably prevent you from getting sick with Covid. No one knows yet whether they will keep you from spreading the virus to others — but that information is coming.
Should Isolation Periods Be Shorter for People With Covid-19?
Patients are usually most infectious two days before symptoms begin and for five days after, a new analysis finds.
Confused About Masks? Here’s What Scientists Know
The accumulating research may be imperfect, and it’s still evolving, but the takeaway is simple. Right now, masks are necessary to slow the pandemic.
Wearing Masks to Prevent Coronavirus: Here’s What Scientists Know
The accumulating research may be imperfect, and it’s still evolving, but the takeaway is simple. Right now, masks are necessary to slow the pandemic.