This is the 7327th most frequent Korean word.
질병청은
"질병청은" means "The Korea Disease Control and Prevention Agency (KDCA)."
Here, '질병청은' acts as the subject of the sentence, referring to the Disease Control Agency performing the action of announcing.
질병청은 새로운 예방접종 계획을 발표했습니다.
The Disease Control Agency announced a new vaccination plan.
In this sentence, '질병청은' is again the subject, indicating the entity responsible for providing information.
코로나19에 대한 질병청은 지속적으로 정보를 제공합니다.
The Disease Control Agency continuously provides information about COVID-19.
Here, '질병청은' is the subject, specifying the organization whose goal is stated in the sentence.