SARS (Severe Acute Respiratory Syndrome) is a newly emerged infection in humans characterized by fever and pneumonia. This disease may progress rapidly to ARDS (Acute Respiratory Distress Syndrome) with considerable morbidity and mortality. It was first identified in the Guandong Province of China in November 2002, and a major outbreak occurred in Hong Kong in March 2003 (Ref.1). Probable cases have been reported in 31 countries, with extensive ongoing transmission in Taiwan and China, continuing transmission...