Severe acute respiratory syndrome(SARS)is a recently recognized febrile severe lower respiratory illness that is caused by infection with a novel coronavirus,SARS-associated coronavirus(SARS-CoV). 目前认为,严重急性呼吸综合征(SARS)是由SARS冠状病毒引起的急性呼吸系统传染病,迄今尚无有效的预防和治疗药物。
It is not quite the eye-stinging, throat-burning, aviation-disrupting peasouper seen in 1997, but still the town of Dumai recorded a surge in acute respiratory illnesses in June and July. 虽然不像1997年的浓雾那样刺眼、灼喉、迫使航空中断，但杜迈（Dumai）急性呼吸道疾病在7、8月出现了激增。
Dyspnea or acute respiratory distress. 呼吸困难或急性呼吸窘迫。
What causes severe acute respiratory syndrome? 严重呼吸系统综合症是由什么引发的?