Are two masks better than one?

When it comes to protecting yourself against new coronavirus variants, two masks may be better than one. A number of politicians, including Vice President Kamala Harris and Senator Mitt Romney, have been spotted doubling up on face masks, and top infectious disease expert Anthony Fauci has recommended that everyday Americans do the same. As part of our #AskReuters Twitter chat series, Reuters gathered a group of health experts to answer questions about the coronavirus, including what they consider the “right” way to wear face coverings.