Ambulance sirens wail all around, and normally cackling schoolchildren now have their smiles obscured behind protective masks. On the subway system, passengers cast suspicious looks at those around them, alert to signs of anything out of the ordinary, and there is a prevailing fear of becoming the next mass transportation victim to be infected by SARS as had previously happened to passengers on trains and inter-city buses.
救護車四處呼嘯、向來喜歡嬉鬧的中小學孩童戴上口罩，捷運上一雙雙冷漠而警醒的雙眼，隨時注意周遭有無異樣，深怕自己會像火車自強號及公路局國光號的乘客「中煞」一樣，成為下一個大眾運輸受害者。