2021

Is the Usual Social Distance Sufficient to Avoid Airborne Infection of Expiratory Droplets in Indoor Environments?

The project, led by Prof. Guo Hai, aims to investigate the relationships of size distributions of airborne droplets from expiratory activities such as speaking, coughing and sneezing, and virus content in the droplets with the distance from the release point. It also tries to decipher the survivability and number of viruses in size-resolved expiratory droplets under different environmental conditions, and to develop a versatile model for whole-range airborne transmission of virus-containing expiratory droplets considering size distribution, virus survivability, distance from release point and impacts of environmental parameters.

This project was awarded a funding of over HK$4.7 million in the second round one-off CRF COVID-19 and Novel Infectious Diseases (NIR) Research Exercises