Wearing two snug, well-fitted face masks can significantly reduce your risk of coronavirus infection, researchers say. But a good fit is key: The new study found that two ill-fitting cloth masks don't ...

Making sure a mask fits snugly on the face and use of two masks is likely to significantly reduce a person’s exposure to the coronavirus, laboratory experiments described by U.S. health officials on ...

Feb 10 (Reuters) - Making sure a mask fits snugly on the face and use of two masks is likely to significantly reduce a person's exposure to the coronavirus, laboratory experiments described by U.S.