Cases of A/H1N1 flu are nearing epidemic levels in London and West Midlands, say GPs.
Henderson
Daniel M
DM
D004196:Disease Outbreaks; D004739:England / Q000453:epidemiology; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000453:epidemiology*