A top US scientist said Friday that the new coronavirus might spread through the air via normal breathing and speaking.
Anthony Fauci, head of infectious diseases at the National Institutes of Health, told Fox News the guidance on masks would be changed "because of some recent information that the virus can actually be spread even when people just speak, as opposed to coughing and sneezing.
However, the official advice is that only sick people need to cover their faces, as well as those caring for them at home
A recent NIH funded study published in the New England Journal of Medicine found that the SARS-CoV-2 virus could become an aerosol and remain airborne for up to three hours.
