Otherwise, won't there be a new wave of infections when they let 'outsiders' back in from places where the virus is still running rampant?
Airports in South Korea has never been closed - South Korea has never banned anyone coming & going outside. A quarantine of two weeks became mandatory since April 1th, but South Korea has never closed Airports or has done a lockdown.
> Otherwise, won't there be a new wave of infections when they let 'outsiders' back in from places where the virus is still running rampant?
Definitely that's a concern, 5 out of 8 new cases yesterday were people that were infected from foreign countries. However since South Korea has never closed it's airports, people generally think it's controllable(like it always was).