Figure 7. The Epidemiological Impact of Delayed Vaccination.

(A) The morbidity-based strategy is more effective than the mortality-based strategy when T is less than 0.13 only if there is there is no delay in vaccination. When vaccines are given after 10% of the population has already been infected, the morbidity-based strategy becomes relatively less effective (and is the preferred strategy only when T is less than 0.11).

(B) At T = 0.125, the morbidity-based strategy is superior to the mortality-based strategy when there is no delay, but inferior for any amount of delay. Each of the values is an average taken across 500 epidemic simulations on the contact network.