방역당국의

방역당국의

"Of the quarantine authorities" or "of the disease control authorities."

Here, '방역당국의' denotes possession, indicating that the guidelines belong to the health authorities.

방역당국의 지침을 따르는 것이 중요합니다.

It is important to follow the guidelines of the health authorities.

In this sentence, '방역당국의' is used to specify the subject of gratitude, which is the efforts made by the health authorities.

방역당국의 노고에 감사드립니다.

Thank you for the efforts of the health authorities.

Here, '방역당국의' connects the announcement with the health authorities, identifying them as the source of the announcement.

방역당국의 발표를 즉시 들었습니다.

I immediately listened to the announcement from the health authorities.