September 3, 2020

Towards Improved Social Distancing Guidelines Space and Time Dependence of Virus Transmission from Speech-Driven Aerosol Transport Between Two Individuals

Category: Article Summary

Topic: Transmission

Keywords (Tags): transmission

• [Pre-print, not peer reviewed] A modeling analysis considering air flow and aerosol transport parameters suggests that physical distancing guidelines should also include a contact time recommendation. The authors recommend less than 5 minutes of contact at a distance of one meter apart and less than 15 minutes for two meters apart in scenarios where an asymptomatic individual is speaking to a susceptible individual in a poorly ventilated environment with neither person wearing a mask.
• If the asymptomatic individual is a superspreader, the infection risk is high within less than one minute at three meters of separation.

Yang et al. (Sept 2, 2020). Towards Improved Social Distancing Guidelines Space and Time Dependence of Virus Transmission from Speech-Driven Aerosol Transport Between Two Individuals. Pre-print downloaded Sep 3 from https://doi.org/10.1101/2020.08.31.20185439