With more evidence of aerosol transmission, physical distancing and masking are crucial
The Centers for Disease Control and Prevention (CDC) is revising its guidelines to acknowledge the spread of the novel coronavirus through aerosols, and to point to inhalation of particles as a common way the virus spreads. A draft of the proposed changes to its recommendations, which was later withdrawn pending finalisation, confirmed that airborne particles can spread even by breathing, remain suspended in air and be inhaled and spread beyond six feet in certain enclosed settings. This comes after a body of evidence provided sufficient indication of aerosol (less than 5 microns) transmission, especially in closed settings with poor ventilation and after prolonged contact with an infected person. In February, researchers from the Wuhan Institute of Virology, in a paper published in Nature,…