Cost and benefits were combined in benefit-to-cost ratio (BCR). Taking the base care (2% discount, 1% growth rate, 95% vaccination coverage rate, 8% probability of employment, average annual earnings of R 1,721 and a vaccine price of R175), the BCR was 1.29 for the Human Capital model and 1.43 for the Willingness-to-pay model. The BCR is sensitive (becomes negative) using a 3% discount rate.