Disease risks change since SARS.
D002487:Centers for Disease Control and Prevention, U.S.; D021821:Communicable Diseases, Emerging; D004196:Disease Outbreaks / Q000517:prevention & control*; D006801:Humans; D012307:Risk Factors; D045473:Severe acute respiratory syndrome-related coronavirus; D045169:Severe Acute Respiratory Syndrome / Q000453:epidemiology*; D014481:United States