Epidemiological and economic impact of pandemic influenza in Chicago: Priorities for vaccine interventions
Fig 5
Return on investment of vaccine intervention.
Return on investment is the gain in net benefits relative to the vaccination cost, that is, dollars saved per $1 investment in vaccine intervention. Economic impact of the vaccine intervention includes both the direct and indirect effects. The direct effect is evaluated from the static model, and the direct and indirect effects is evaluated from the dynamic model.