More than 4,200 have died, according to a tally of government announcements.
Italy, with more than 10,100 cases and 631 deaths, sealed off much of its industrial north, where six prisoners were killed in a riot over curbs on visits.
The government also ordered cinemas, theatres and museums to close, cancelled sporting events and told shops and restaurants to ensure patrons remained at least a metre apart.
Recovered coronavirus patients speak out about their experiences.