당시에는 별다른 증상이 없었지만, 18일 오전까지 대구에 있다 왔다는 말에 보건당국은 자가격리를 하도록 조치했다.
Although there were no symptoms at the time, health authorities decided to make self-price when they heard that they had been in Daegu until the morning of the 18th.