An agent-based model of dengue virus transmission shows how uncertainty about breakthrough infections influences vaccination impact projections
Fig 6
Relative risk of infection conditional on exposure (dashed) and of disease conditional on infection (solid) for seropositive (red) and seronegative (blue) individuals of different ages.
These relationships are shown for three different values of the parameter p that specifies the proportion of the overall efficacy against disease that is attributable to protection against infection conditional on exposure.