Published: Feb 11, 2021, 24:15 IST | Updated: Feb 11, 2021, 24:15 IST
United States' Centers for Disease Control and Prevention said that "wearing a mask — any mask — reduces the risk of infection with the coronavirus, but wearing a more tightly fitted surgical mask, or layering a cloth mask atop a surgical mask, can vastly increase protections to the wearer and others.