Severe acute respiratory syndrome (SARS).
D002487:Centers for Disease Control and Prevention, U.S.; D004196:Disease Outbreaks / Q000517:prevention & control / Q000706:statistics & numerical data*; D006801:Humans; D012307:Risk Factors; D045169:Severe Acute Respiratory Syndrome / Q000453:epidemiology / Q000517:prevention & control* / Q000635:transmission; D014195:Travel; D014481:United States / Q000453:epidemiology