In all the centers, a member of staff was assigned to perform the nasopharynx swabs for COVID-19 polymerase chain reaction. The indicated professional figures were trained on the correct methods of performing the diagnostic test but also on the type of devices needed during the procedure. Each operator, in fact, must be equipped with a protective mask (FFP2) capable of filtering 95% of particulates and aerosols in the inhaled air, glasses, mobcap, disposable surgical blouse and gloves [137].