In Italy, wearing a mask to cover the nose and mouth has been indicated among the safety measures useful for the containment and management of the infectious disease, in association with other recommendations for the prevention of the spread of SARS-CoV-2, such as correct hygiene of hands and social distancing.
The masks allow, in fact, to limit the spread of airborne viruses, with varying effectiveness depending on the type and correct methods of use.
The Coronavirus responsible for respiratory disease COVID-19 (SARS-Cov-2) is a virus that is transmitted from one person to another mainly by air: the pathogen has dimensions of 100-150 nanometers in diameter and is carried by liquid particles (droplets) that are emitted while breathing or talking. To contract the Coronavirus 2019-nCoV infection, close contact with an infected case must be established (for example, sharing the same closed environment, living in the same house, etc.) or exposure to droplets.
