Fig. 2.

Comparison of financing strategies for typhoid Vi vaccination in two slums in Kolkata

Letter indicates group targeted: ‘C’ is children aged 2–14.9 years; ‘A’ is adults aged over 15 years. Superscript indicates user-fee levied, such that C^0.25A^2.0 indicates a strategy where user-fees are US$ 0.25 for children and US$ 2.0 for adults. Strategy C⁰ would target only eligible children; the vaccine would be essentially unavailable to adults; All currency values are in US$ as of 2007, translated from local currency using market exchange rates; COI=Cost-of-illness