During the prodromal phase, patients might become withdrawn and spend most of their time alone, and often this seems similar to other mental disorders like depression or anxiety disorders.

在前驱期，患者可能会变得孤僻，大部分时间都一个人呆着，很多时候这种表现与其它精神疾病相似，比如抑郁症和焦虑症。

Following an active phase, patients often enter into a residual phase, where they might exhibit cognitive symptoms like not being able to concentrate or becoming withdrawn again, as with the prodromal phase.

急性期后，患者通常会进入残留期，这时患者可能表现出认知障碍，如无法集中注意力，或者和前驱期一样再次变得孤僻。

In general, infected people are most contagious starting from the final day of the incubation period through the prodromal and exanthem phase, which roughly works out to be 4 days before to 4 days after the onset of the rash.

一般来说，感染者极具传染性，从潜伏期的最后一天开始，经过前驱期和皮疹期，大约是从出疹前4天到后4天为止。