Risk of airborne coronavirus spread being underplayed, say researchers

Over 200 scientists have called for the world to take more precautions against the airborne transmission of the coronavirus. While the virus is known to spread through the air via large droplets produced when people cough or sneeze, they say it can also be spread by smaller droplets known as aerosols that can linger in the air. Preventing this means ventilating buildings and avoiding overcrowding. “Hand-washing and social distancing are appropriate, but, in our view, insufficient to provide protection from virus-carrying respiratory microdroplets released into the air by infected people,” states a letter written by Lidia Morawska at Queensland University of Technology in Australia. It has been signed by 239 researchers. The letter also calls for international bodies such as the World Health Organization (WHO) to acknowledge the possibility of this type of airborne spread and suggests precautions against it.