"Is the usual social distance sufficient to avoid airborne infection of expiratory droplets in indoor environments?"

"The spatiotemporal variations of size distributions, velocity vector fields and airborne dynamics of expiratory droplets generated from people infected with Influenza A or B, and the quantities of influenza virus at different distances from the test subjects will be firstly measured using a suite of the state-of-the-art instruments and methods. Bacteriophage phi 6 will then be used as a
surrogate of coronavirus and other human pathogenic enveloped viruses to investigate the survivability and number of viruses in size-resolved droplets at different time and locations from the release point under different environmental conditions (e.g. temperature and relative humidity) with the aid of cultivation method and RT-qPCR technique. Lastly, a versatile model of whole-range airborne transmission will be developed and validated with experimental data to predict the airborne transmission of virus-laden expiratory droplets and the risk of exposure to viable viruses."