Severe symptom
重征───Severe symptom
In severe cases, patients generally begin to deteriorate around 3 to 5 days after symptom onset.───重症病人一般在出现症状后3至5天左右病情开始恶化。
In fatal cases, death occurs most often between 8 and 9 days after symptom onset, usually preceded by severe blood loss and shock.───在致命病例中，死亡通常发生在症状出现之后8至9天，一般在此之前出现严重失血和休克。
Fact: Snoring may be harmless, but it can also be a symptom of a life-threatening sleep disorder called sleep apnea, especially if it is accompanied by severe daytime sleepiness.───事实：打鼾可能是无害的，但它也可以是威胁生命的睡眠障碍的一个症状，这一睡眠障碍叫做“睡眠呼吸暂停”，特别是当它伴有严重的白天的嗜睡症状的时候。
Using black diaphragm intraocular lens implantation in management of traumatic aniridia combined with aphakia in order to eliminate the severe symptom of photophobia and to improve visual acuity.