One day Tom and I were walking down the street while we saw an old man fall off his bike. He was badly hurt. Many people crowded around us. Someone suggested carrying the old man to the roadside, so Tom disagreed. He has learned first aid. He said that they ought to leave him where he was and checked him first. At that time the old man wasn't breathing. Tom asked me to call in the First Aid Center at once and he began to start the old man's breathing, use the mouth-to-mouth way. Within five minutes, the old man began to move little and doctors also arrived. They said that we had done was correct. I have learned from this experience that a knowledge of first aid can make a really difference.

巨细胞病毒感染中不正确的是（）。

A、巨细胞病毒可因妊娠而被激活

B、新生儿感染经积极治疗，预后较好，多无后遗症

C、妊娠晚期感染者无需特殊处理，可经 * * 分娩

D、多为隐性感染，无明显症状和体征

E、可发生流产、死胎、死产、新生儿死亡