For students positive for COVID-19, readmission to the classroom is possible only after showing a negative antigenic or molecular swab and release by the attending physician.

Details at https://international.unime.it/2019/05/03/covid-regulations/
In particular Measures in case of COVID-19 infections and access to lectures after quarantine/isolation

For students who have had close contact in possession of the super green pass, the lessons / training activity can be attended face to face with self-monitoring and FFP2 obligation;

For other students without symptoms, who have had close contact, all activities by TEAMS for 5 days with a swab at the end of the quarantine period.

For details see the attachment