Alitalia is like the mythological Hydra, so nobody knows.
Concerning Italy, easyJet has published an information on its website:
We are aware of the latest Italian media reports of local government plans to introduce restrictions in the Lombardy, Veneto and Emilia Romagna regions including Milan and Venice. However, we have had confirmation that currently our operations to and from Milan-Malpensa, Milan-Linate and Venice airports are not affected and we plan to operate our flight schedule as normal.
I find it a bit controversial. Is it ecologically acceptable to carry out almost empty flights just because the payments were made much earlier and the cancellations would mean returning the money to all customers?