CDC recommends double masking for first time

Wearing a cloth mask over a medical procedure mask can significantly decrease the spread of COVID-19, according to a new study the Centers for Disease Control and Prevention (CDC) released Wednesday.

The agency updated its guidance to note that double masking or wearing a tightly fitted surgical mask are two of the best ways to boost protection against exposure.

CDC researchers experimenting in a lab found that the better the fit of the mask, the better the protection it provides.

"The effectiveness of cloth and medical procedure masks can be improved by ensuring that they are well-fitted to the contours of the face to prevent leakage of air around the masks’ edges," the agency said.