On Friday, the Centers for Disease Control (CDC) posted an update to guidance on COVID-19 that said the virus could be spread through the air through aerosolized droplets. On Monday, the CDC walked back the update, claiming it was posted erroneously. “A draft version of proposed changes to these recommendations was posted in error to the agency’s official website. CDC is currently updating its recommendations regarding airborne transmission of SARS-CoV-2 (the virus that causes COVID-19). The WHO says those most at risk from airborne spread are doctors and nurses who perform specialized procedures such as inserting a breathing tube or putting patients on a ventilator.