title: SARS--emerging illness causing widespread concern.
mesh_terms: D021821:Communicable Diseases, Emerging / Q000453:epidemiology* / Q000517:prevention & control; D004196:Disease Outbreaks; D006266:Health Education; D006801:Humans; D045169:Severe Acute Respiratory Syndrome / Q000453:epidemiology* / Q000517:prevention & control