Are you spreading coronavirus? Why you need to wear a mask or face-covering

GREENSBORO, N.C. — Do I need to wear a mask? Do homemade masks really help that much? How dangerous is it to not wear a mask?

These are just a few of the many mask questions you're asking, and for good reason. At first, the Centers for Disease Control and Prevention told us all: If you're not sick, don't wear a mask and leave the masks for healthcare workers.

The price of masks shot up. They were and still are in short supply.

A few days ago, the CDC changed its recommendation and told people they should cover their mouths and noses with something. What changed? The CDC now thinks at least 25 percent of people who have coronavirus could show no signs they're sick and they're spreading it without knowing it.

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