When are two masks better than one for preventing COVID-19? ...Middle East

N95 masks continue to be the gold standard, but if you can't get your hands on them, a pair of surgical masks could better protect you. (RD Stock Photos/Deposit Photo/)What’s better than one mask? The answer is rather obvious: two.For the better part of the last year, public health officials have been advising people to wear a mask over their noses and mouths—sometimes to little avail. Now some medical experts are floating the option of adding a second layer to decrease the risk of getting or spreading COVID-19. It isn’t necessary in all scenarios, they say, but it can help protect the health of the general public in higher-risk situations.When spending time indoors in public, for instance,

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