密接

In a sentence

• 我们需要通知所有密接者接受隔离检查。

  We need to notify all close contacts to undergo isolation checks.

  In this sentence, '密接' is used as part of '密接者', referring to individuals who have had close contact with someone potentially infected.

• 请密切关注密接者的身体状况。

  Please closely monitor the health status of the close contacts.

  Here, '密接' again forms '密接者', focusing on the monitoring aspect concerning these individuals.

• 由于情况紧急，我们必须立即追踪所有可能的密接。

  Due to the urgency of the situation, we must immediately trace all potential close contacts.

  '密接' is used here to denote potential close interactions requiring tracing and evaluation.