The United States Centers for Disease Control and Prevention is planning to update its recommendation on masks.

CDC researchers have been conducting a scientific review about the masks during the coronavirus pandemic. Scientists wanted to study if masks protect people from contracting COVID-19, not just preventing them from spreading it.

One recommendation says people should wear masks when they leave their homes. The other recommends people wear a mask if they cannot properly social distance.

The new guidance is expected to be announced 'soon'.