Video: Why should masks cover your nose?

Why should masks cover your nose?Going to a local store and seeing a large majority of shoppers and employees wearing face masks to reduce to spread of COVID-19 has become a common sight over the last several months, but it's important that those masks are worn correctly and cover the nose as well as the mouth.

Infectious disease expert Dr. Elizabeth McGraw explains why covering the entire face is so vital, and offers an anecdote that illustrates the effectiveness of correct mask wearing.