I think Singapore maybe handling it the best, heady testing and contact tracing. They had their first case on January 23 and only have 189 cases
As of 11 March 2020, 12pm, MOH has identified 4,218 close contacts who have been quarantined. Of these, 981 are currently quarantined, and 3,237 have completed their quarantine.
They shut down their borders quicker then the USA or Europe.