Cloth face coverings are recommended in public, especially when social distancing is not possible.
Many of us are making our own masks to try to protect others around us, and new research suggests the number of layers on a covering is key.
WEB EXTRA: Smithsonian's National Zoo Reopens
CBS4 Miami
The Smithsonian’s National Zoo in Washington, D.C. reopened Friday after being closed because of the pandemic. The number of..
