Detection of influenza transmission to healthcare workers - learning from the SARS "Era".
D006282:Health Personnel; D006801:Humans; D007251:Influenza, Human / Q000175:diagnosis* / Q000635:transmission*; D011159:Population Surveillance / Q000379:methods; D012680:Sensitivity and Specificity; D045169:Severe Acute Respiratory Syndrome / Q000453:epidemiology*