title: Essential public health.
authors.forename: P
authors.initials: P
authors.lastname: Mackie
authors.forename: F
authors.initials: F
authors.lastname: Sim
mesh_terms: D004189:Disaster Planning; D004196:Disease Outbreaks / Q000517:prevention & control; D006801:Humans; D017589:Immunization Programs; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000517:prevention & control; D009976:Orthomyxoviridae Infections; D011634:Public Health; D006113:United Kingdom