title: Provide a context for disease emergence.
authors.forename: T D
authors.initials: TD
authors.lastname: St George
mesh_terms: D018354:Alphavirus Infections / Q000453:epidemiology; D000818:Animals; D001315:Australia; D001819:Bluetongue / Q000453:epidemiology; D001820:Bluetongue virus / Q000302:isolation & purification; D004196:Disease Outbreaks; D004197:Disease Reservoirs; D006801:Humans; D012307:Risk Factors; D012398:Ross River virus / Q000302:isolation & purification; D014777:Virus Diseases / Q000453:epidemiology* / Q000662:veterinary