Transmission of COVID-19 and the role of face masks in ...

Depending on their airborne or droplet transmission route (e.g. pandemic influenza; SARS in 2003) or the high infectivity of body fluids (e.g. EVD in 2014), IDHCs can generate large-scale epidemics (e.g. SARS, EVD) or pandemics (e.g. Spanish influenza pandemic in 1918). ................
................