America's top infectious diseases expert says people should consider wearing two masks - as it's "common sense". Dr Anthony Fauci director of the National Institute of Allergy and Infectious Diseases, said that doing so "likely does" provide more protection.
It comes after new President Joe Biden signed legislation making it compulsory to wear masks on federal property - one of the first acts of his new administration.
Dr Fauci, who had a difficult relationship with Donald Trump, made the remark about multiple masks in a TV interview. He told NBC News' Today programme: “So if you have a physical covering with one layer, you put another layer on, it just makes common sense that it likely would be more effective. “That’s the reason why