The 17 people are going through a 7-day medical observation and have showed no symptoms so far, according to Beijing Evening News.

他们将要接受7天的医学观察，目前尚未出现任何症状。

youdao

Further complicating the picture, Milton places this scene of observation with extraordinary care at the moment of evening.

为了使诗歌更复杂，弥尔顿把这个观察的场景,附加了更多的关注。

耶鲁公开课 - 弥尔顿课程节选