Performers would wear masks to make their characters immediately recognisable. It also meant the actors could make political jokes and satirical comments without being recognised. Commedia dell’arte ...

Ludmila Shleyfer Lavine, Aleksandr Blok's "The Twelve": The Transformation of "Commedia Dell'Arte" into an Epic, The Slavic and East European Journal, Vol. 49, No. 4 (Winter, 2005), pp. 570-590 ...

Intervention Hospital wards were randomised to: medical masks, cloth masks or a control group (usual practice, which included mask wearing). Participants used the mask on every shift for 4 consecutive ...