Consider the actions taken in Italy. On Feb. 20, Italy reported three instances of infection and no known deaths. On Feb. 21, Italy had 20 cases and its first attributed death. Officials implemented interventions, including school closures, the following day and instituted a cordon sanitaire affecting 50,000 people. That’s aggressive, but it was too late.
On Feb. 22, Italy reported 63 cases and a second death. A little more than a week later, there were 2,036 cases, with 140 patients in serious condition and 52 deaths. Today, the numbers continue to climb, with more than 9,100 cases and 460 dead, and on Monday the government expanded travel restrictions to the entire country.
https://www.washingtonpost.com/opinions/2020/03/09/its-now-or-never-us-if-it-hopes-keep-coronavirus-burning-out-control/