Financing is a critical component of a sustainable immunization programme. The Immunization Financing Toolkit is a series of short briefs on different options for financing national immunization programs and vaccines. It is intended to serve as a resource for program managers and decision-makers in ministries of health, planning, and finance. The Toolkit brings together the most up-to-date knowledge on the characteristics of various types of financing mechanisms as well as information on how the mechanisms are being implemented in practice, their potential benefits, and their limitations. Where possible, case studies on specific financing options are included. Immunization Financing Tool (French)