title: Pandemicity and severity are separate constructs.
authors.forename: Alan J
authors.initials: AJ
authors.lastname: Card
mesh_terms: D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000517:prevention & control*; D032541:Mass Vaccination / Q000941:ethics*; D011634:Public Health; D012308:Risk Management