Lessons from Stafford.
D000389:Air Conditioning / Q000009:adverse effects; D000391:Air Microbiology; D003428:Cross Infection / Q000453:epidemiology*; D004196:Disease Outbreaks / Q000453:epidemiology*; D004739:England; D006801:Humans; D007877:Legionnaires' Disease / Q000453:epidemiology*