It's spring in Buffalo, New York. At sprawling St. Paul's Hospital, new interns rush through the halls, staff doctors scramble to catch their prot g s' mistakes, and everyone is aware of one unrelenting threat: A new and vicious strain of severe acute respiratory syndrome (SARS) has hit America hard and is menacing the hospital like a wolf at the door. Wrapped in spacesuit-like garb to search for every possible source of infection, the hospital staff...