The US Centers for Disease Control and Prevention urges people to “wear a mask with the best fit, protection, and comfort for you,” but doesn’t make a broad recommendation. CNN’s Dr. Sanjay Gupta explains what needs to be known when deciding if you should mask up. #covid #covidー19 #covid2023 #covid19 #mask #sanjaygupta #variant #newvariant #ba286 #news #health