A couple weeks.

"4805 new cases and 681 new deaths in Italy. The number of patients hospitalized in intensive care has declined for the first time since the beginning of the epidemic in Italy

The target of bringing down the reproductive number (R0) to 1 has been reached. Now the goal is to bring it below 1. Earlier in the epidemic, it was as high as 3. This value represents the average number of people to which a single infected person will transmit the virus. An epidemic with a reproductive number below 1 will gradually disappear"