title: Influenza A (H1N1) infections among healthcare workers: a cause for cautious optimism.
authors: Judy
authors: J
authors: Sng
authors: David
authors: D
authors: Koh
authors: Gerald
authors: G
authors: Koh
mesh_terms: D004196:Disease Outbreaks; D006282:Health Personnel / Q000706:statistics & numerical data*; D006801:Humans; D017758:Infectious Disease Transmission, Patient-to-Professional / Q000517:prevention & control / Q000706:statistics & numerical data; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000453:epidemiology* / Q000517:prevention & control / Q000635:transmission; D009784:Occupational Diseases / Q000453:epidemiology* / Q000517:prevention & control