On 18th August the Ministry of Foreign Affairs and International Cooperation has published the istructions for foreigners in Italy: https://www.esteri.it/mae/en/ministero/normativaonline/decreto-iorestoacasa-domande-frequenti/focus-cittadini-italiani-in-rientro-dall-estero-e-cittadini-stranieri-in-italia.html (The English translation is available by clicking in the top right hand corner).
The Incoming Students are kindly requested to adhere to these regulations until further notice.