South Korea’s coronavirus success

Both countries saw their first corona­virus cases on the same day, Jan. 20. By April 2, the U.S. had more than 240,000 cases and more than 5,800 deaths. Most businesses were shut down or crippled, and more than 10 million people had filed for unemployment in two weeks. In contrast, South Korea on April 2 had fewer than 10,000 confirmed cases and 169 deaths. The disease rate there appears to be both low and stable, yet no South Korean city has gone under a full lockdown, and the main economic...