Figure 5

Cases avoided per year with routine vaccination of adolescents under different scenarios at steady state. Larger community size – 500,000 individuals. No/high contact relative risk – 0%/200% of base case relative risk. Low/high incidence – 75%/125% of base case incidence. Low/high vaccine efficacy – doubling/cutting in half the rate of decay for vaccine effectiveness. No/Low/High herd immunity – 0%/50%/150% of base case herd immunity. 50%/90% coverage – coverage rate for routine vaccination.