The magic formula from South Korea, Hong Kong and Singapore:

Social distancing on a massive scale, quarantining infected areas, canceling big events and closing schools and offices to slow down the spread.

Intensive testing for all who want it, and surveillance and monitoring of the infected to try to limit outbreaks.

Emergency efforts to ensure people don’t avoid care over cost concerns, because everyone is at greater risk of infection if the uninsured and underinsured avoid treatment.