Saliva can travel over 5.5m in 5 seconds even in a light breeze, study finds

A light wind is enough to send coughed-out saliva over five metres in five seconds, a new study has found.

The research – published in Physics of Fluids today – appears to show that the two-metre social distancing rule in place across much of the world due to COVID-19 could be insufficient to prevent transmission in some circumstances.